1
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Mayer PM, Moran KD, Miller EL, Brander SM, Harper S, Garcia-Jaramillo M, Carrasco-Navarro V, Ho KT, Burgess RM, Thornton Hampton LM, Granek EF, McCauley M, McIntyre JK, Kolodziej EP, Hu X, Williams AJ, Beckingham BA, Jackson ME, Sanders-Smith RD, Fender CL, King GA, Bollman M, Kaushal SS, Cunningham BE, Hutton SJ, Lang J, Goss HV, Siddiqui S, Sutton R, Lin D, Mendez M. Where the rubber meets the road: Emerging environmental impacts of tire wear particles and their chemical cocktails. Sci Total Environ 2024; 927:171153. [PMID: 38460683 DOI: 10.1016/j.scitotenv.2024.171153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 03/11/2024]
Abstract
About 3 billion new tires are produced each year and about 800 million tires become waste annually. Global dependence upon tires produced from natural rubber and petroleum-based compounds represents a persistent and complex environmental problem with only partial and often-times, ineffective solutions. Tire emissions may be in the form of whole tires, tire particles, and chemical compounds, each of which is transported through various atmospheric, terrestrial, and aquatic routes in the natural and built environments. Production and use of tires generates multiple heavy metals, plastics, PAH's, and other compounds that can be toxic alone or as chemical cocktails. Used tires require storage space, are energy intensive to recycle, and generally have few post-wear uses that are not also potential sources of pollutants (e.g., crumb rubber, pavements, burning). Tire particles emitted during use are a major component of microplastics in urban runoff and a source of unique and highly potent toxic substances. Thus, tires represent a ubiquitous and complex pollutant that requires a comprehensive examination to develop effective management and remediation. We approach the issue of tire pollution holistically by examining the life cycle of tires across production, emissions, recycling, and disposal. In this paper, we synthesize recent research and data about the environmental and human health risks associated with the production, use, and disposal of tires and discuss gaps in our knowledge about fate and transport, as well as the toxicology of tire particles and chemical leachates. We examine potential management and remediation approaches for addressing exposure risks across the life cycle of tires. We consider tires as pollutants across three levels: tires in their whole state, as particulates, and as a mixture of chemical cocktails. Finally, we discuss information gaps in our understanding of tires as a pollutant and outline key questions to improve our knowledge and ability to manage and remediate tire pollution.
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Affiliation(s)
- Paul M Mayer
- US Environmental Protection Agency, Office of Research and Development, Center for Public Health and Environmental Assessment, Pacific Ecological Systems Division, Corvallis, OR 97333, United States of America.
| | - Kelly D Moran
- San Francisco Estuary Institute, 4911 Central Ave, Richmond, CA 94804, United States of America.
| | - Ezra L Miller
- San Francisco Estuary Institute, 4911 Central Ave, Richmond, CA 94804, United States of America.
| | - Susanne M Brander
- Department of Fisheries, Wildlife, and Conservation Sciences, Coastal Oregon Marine Experiment Station, Oregon State University, Corvallis, OR 97331, United States of America.
| | - Stacey Harper
- Department of Environmental and Molecular Toxicology, School of Chemical, Biological and Environmental Engineering, Oregon State University, Corvallis, OR 97333, United States of America.
| | - Manuel Garcia-Jaramillo
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, United States of America.
| | - Victor Carrasco-Navarro
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio Campus, Yliopistonranta 1 E, 70211 Kuopio, Finland.
| | - Kay T Ho
- US Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, Narragansett, RI 02882, United States of America.
| | - Robert M Burgess
- US Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, Narragansett, RI 02882, United States of America.
| | - Leah M Thornton Hampton
- Southern California Coastal Water Research Project, 3535 Harbor Blvd, Suite 110, Costa Mesa, CA 92626, United States of America.
| | - Elise F Granek
- Environmental Science & Management, Portland State University, Portland, OR 97201, United States of America.
| | - Margaret McCauley
- US Environmental Protection Agency, Region 10, Seattle, WA 98101, United States of America.
| | - Jenifer K McIntyre
- School of the Environment, Washington State University, Puyallup Research & Extension Center, Washington Stormwater Center, 2606 W Pioneer Ave, Puyallup, WA 98371, United States of America.
| | - Edward P Kolodziej
- Interdisciplinary Arts and Sciences (UW Tacoma), Civil and Environmental Engineering (UW Seattle), Center for Urban Waters, University of Washington, Tacoma, WA 98402, United States of America.
| | - Ximin Hu
- Civil and Environmental Engineering (UW Seattle), University of Washington, Seattle, WA 98195, United States of America.
| | - Antony J Williams
- US Environmental Protection Agency, Center for Computational Toxicology and Exposure, Chemical Characterization and Exposure Division, Computational Chemistry & Cheminformatics Branch, 109 T.W. Alexander Drive, Research Triangle Park, NC 27711, United States of America.
| | - Barbara A Beckingham
- Department of Geology & Environmental Geosciences, College of Charleston, Charleston, SC, 66 George Street Charleston, SC 29424, United States of America.
| | - Miranda E Jackson
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, United States of America.
| | - Rhea D Sanders-Smith
- Washington State Department of Ecology, 300 Desmond Drive SE, Lacey, WA 98503, United States of America.
| | - Chloe L Fender
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, United States of America.
| | - George A King
- CSS, Inc., 200 SW 35th St, Corvallis, OR 97333, United States of America.
| | - Michael Bollman
- US Environmental Protection Agency, Office of Research and Development, Center for Public Health and Environmental Assessment, Pacific Ecological Systems Division, Corvallis, OR 97333, United States of America.
| | - Sujay S Kaushal
- Department of Geology and Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD 20740, United States of America.
| | - Brittany E Cunningham
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97333, United States of America.
| | - Sara J Hutton
- GSI Environmental, Inc., Olympia, Washington 98502, USA.
| | - Jackelyn Lang
- Department of Anatomy, Physiology, and Cell Biology, Department of Medicine and Epidemiology and the Karen C. Drayer Wildlife Health Center, University of California, Davis School of Veterinary Medicine, Davis, CA 95616, United States of America.
| | - Heather V Goss
- US Environmental Protection Agency, Office of Water, Office of Wastewater Management, Washington, DC 20004, United States of America.
| | - Samreen Siddiqui
- Department of Fisheries, Wildlife, and Conservation Sciences, Coastal Oregon Marine Experiment Station, Oregon State University, Corvallis, OR 97331, United States of America.
| | - Rebecca Sutton
- San Francisco Estuary Institute, 4911 Central Ave, Richmond, CA 94804, United States of America.
| | - Diana Lin
- San Francisco Estuary Institute, 4911 Central Ave, Richmond, CA 94804, United States of America.
| | - Miguel Mendez
- San Francisco Estuary Institute, 4911 Central Ave, Richmond, CA 94804, United States of America.
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2
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Langknecht T, Pelletier M, Robinson S, Burgess RM, Ho KT. The distribution of sediment microplastics assemblages is driven by location and hydrodynamics, not sediment characteristics, in the Gulf of Maine, USA. Mar Pollut Bull 2024; 202:116393. [PMID: 38669855 DOI: 10.1016/j.marpolbul.2024.116393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024]
Abstract
Microplastics (MP) are found in marine sediments across the globe, but we are just beginning to understand their spatial distribution and assemblages. In this study, we quantified MP in Gulf of Maine, USA sediments. MP were extracted from 20 sediment samples, followed by polymer identification using Raman spectroscopy. We detected 27 polymer types and 1929 MP kg-1 wet sediment, on average. Statistical analyses showed that habitat, hydrodynamics, and station proximity were more important drivers of MP assemblages than land use or sediment characteristics. Stations closer to one another were more similar in their MP assemblages, tidal rivers had higher numbers of unique plastic polymers than open water or embayment stations, and stations closer to shore had higher numbers of MP. There was little evidence of relationships between MP assemblages and land use, sediment texture, total organic carbon, or contaminants.
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Affiliation(s)
- Troy Langknecht
- ORAU c/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA; Rhode Island Department of Environmental Management, Bureau of Natural Resources, 235 Promenade Street, Providence, RI 02908, USA
| | - Marguerite Pelletier
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Sandra Robinson
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Robert M Burgess
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA.
| | - Kay T Ho
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
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3
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Giroux MS, Reichman JR, Langknecht T, Burgess RM, Ho KT. Using eRNA/eDNA metabarcoding to detect community-level impacts of nanoplastic exposure to benthic estuarine ecosystems. Environ Pollut 2023; 338:122650. [PMID: 37777055 PMCID: PMC10762991 DOI: 10.1016/j.envpol.2023.122650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/02/2023]
Abstract
Plastic particles are ubiquitous in marine systems and fragment into smaller pieces, such as nanoplastics (NPs). The effects of NPs on marine organisms are of growing concern but are not well understood. Marine sediments act as a sink for many contaminants, like microplastics, and are rich habitats for benthic micro- and meiofauna which are ecologically-important components of marine food webs; however, little is known about the sensitivities of specific organisms to NPs or the effects on community diversity and composition. Utilizing molecular methods, such as metabarcoding of environmental DNA/RNA, allows for the rapid and comprehensive detection of microscopic organisms via high-throughput sequencing to assess adverse effects at the community level. The objective of this study was to use a metabarcoding approach to investigate the effects of NPs on benthic micro- and meiofaunal community diversity. Mesocosms were created with sediment cores collected from the Narrow River estuary (Rhode Island, USA) and exposed to 900 nm diameter weathered polystyrene beads at concentrations of 0.1, 1, 10, or 100 mg/kg dry weight in sediment for two weeks. Following exposure, RNA and DNA were co-extracted from the sediment, RNA was reverse-transcribed, 18S and COI markers were PCR-amplified, and amplicons were sequenced on an Illumina MiSeq. Using the 18S marker and eRNA template, increases to α-diversity and significant differences to β-diversity were observed in the highest NP exposures relative to the control. Observed differences in community composition were driven by the differential abundance of several types of protists and arthropods. Significant dose-dependent shifts in composition were observed in β-diversity Jaccard and Unweighted-Unifrac metrics with the 18S marker using the RNA template. To our knowledge, this is the first demonstration of a dose-response relationship for NPs at a community level, and it highlights the value of using community-level endpoints to assess environmental impacts of nanoparticles.
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Affiliation(s)
- Marissa S Giroux
- U.S. EPA, Office of Research and Development, Atlantic Coastal Environmental Sciences Division, Narragansett, RI, USA.
| | - Jay R Reichman
- U.S. EPA, Office of Research and Development, Pacific Ecological Systems Division, Corvallis, OR, USA
| | - Troy Langknecht
- ORISE c/o U.S. EPA ORD/CEMM Atlantic Coastal Environmental Sciences Division, USA
| | - Robert M Burgess
- U.S. EPA, Office of Research and Development, Atlantic Coastal Environmental Sciences Division, Narragansett, RI, USA
| | - Kay T Ho
- U.S. EPA, Office of Research and Development, Atlantic Coastal Environmental Sciences Division, Narragansett, RI, USA
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4
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Cashman M, Langknecht T, El Khatib D, Burgess RM, Boving TB, Robinson S, Farnan J, Ho KT. Corrigendum to "Quantification of microplastics in sediments from Narragansett Bay, Rhode Island USA using a novel isolation and extraction method" [Mar. Pollut. Bull. 174 (2022) 113254]. Mar Pollut Bull 2023; 196:115537. [PMID: 37925248 DOI: 10.1016/j.marpolbul.2023.115537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2023]
Affiliation(s)
- Michaela Cashman
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA; University of Rhode Island, Department of Geosciences, 9 E Alumni Avenue, Kingston, RI 02881, USA.
| | - Troy Langknecht
- Oak Ridge Institute of Science Education, c/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Dounia El Khatib
- Oak Ridge Institute of Science Education, c/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Robert M Burgess
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Thomas B Boving
- University of Rhode Island, Department of Geosciences, 9 E Alumni Avenue, Kingston, RI 02881, USA; University of Rhode Island, Department of Civil Engineering, 9 E Alumni Avenue, Kingston, RI 02881, USA
| | - Sandra Robinson
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - James Farnan
- Oak Ridge Institute of Science Education, c/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Kay T Ho
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
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5
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Thornton Hampton LM, De Frond H, Gesulga K, Kotar S, Lao W, Matuch C, Weisberg SB, Wong CS, Brander S, Christansen S, Cook CR, Du F, Ghosal S, Gray AB, Hankett J, Helm PA, Ho KT, Kefela T, Lattin G, Lusher A, Mai L, McNeish RE, Mina O, Minor EC, Primpke S, Rickabaugh K, Renick VC, Singh S, van Bavel B, Vollnhals F, Rochman CM. The influence of complex matrices on method performance in extracting and monitoring for microplastics. Chemosphere 2023; 334:138875. [PMID: 37187379 PMCID: PMC10441247 DOI: 10.1016/j.chemosphere.2023.138875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 04/12/2023] [Accepted: 05/06/2023] [Indexed: 05/17/2023]
Abstract
Previous studies have evaluated method performance for quantifying and characterizing microplastics in clean water, but little is known about the efficacy of procedures used to extract microplastics from complex matrices. Here we provided 15 laboratories with samples representing four matrices (i.e., drinking water, fish tissue, sediment, and surface water) each spiked with a known number of microplastic particles spanning a variety of polymers, morphologies, colors, and sizes. Percent recovery (i.e., accuracy) in complex matrices was particle size dependent, with ∼60-70% recovery for particles >212 μm, but as little as 2% recovery for particles <20 μm. Extraction from sediment was most problematic, with recoveries reduced by at least one-third relative to drinking water. Though accuracy was low, the extraction procedures had no observed effect on precision or chemical identification using spectroscopy. Extraction procedures greatly increased sample processing times for all matrices with the extraction of sediment, tissue, and surface water taking approximately 16, 9, and 4 times longer than drinking water, respectively. Overall, our findings indicate that increasing accuracy and reducing sample processing times present the greatest opportunities for method improvement rather than particle identification and characterization.
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Affiliation(s)
| | - Hannah De Frond
- Department of Ecology & Evolutionary Biology, University of Toronto, 25 Willcocks Street, Room 3055, Toronto, Ontario, M5S 3B2, Canada
| | - Kristine Gesulga
- Southern California Coastal Water Research Project Authority, Costa Mesa, CA, 92626, USA
| | - Syd Kotar
- Southern California Coastal Water Research Project Authority, Costa Mesa, CA, 92626, USA
| | - Wenjian Lao
- Southern California Coastal Water Research Project Authority, Costa Mesa, CA, 92626, USA
| | - Cindy Matuch
- Southern California Coastal Water Research Project Authority, Costa Mesa, CA, 92626, USA
| | - Stephen B Weisberg
- Southern California Coastal Water Research Project Authority, Costa Mesa, CA, 92626, USA
| | - Charles S Wong
- Southern California Coastal Water Research Project Authority, Costa Mesa, CA, 92626, USA
| | - Susanne Brander
- Department of Fisheries, Wildlife, And Conservation Sciences, Coastal Oregon Marine Experiment Station, Oregon State University, Newport, OR, 97365, USA
| | - Silke Christansen
- Fraunhofer Institute for Ceramics Technology and Systems (IKTS), Äußere Nürnberger Str. 62, 91301, Forchheim, Germany; Institute for Nanotechnology and Correlative Microscopy (INAM), Äußere Nürnberger Str. 62, 91301, Forchheim, Germany
| | - Cayla R Cook
- Hazen and Sawyer, 1400 East Southern Ave., Tempe, AZ, 85282, USA; Carollo Engineers, 4600 E Washington St Ste 500, Phoenix, AZ, 85034, USA
| | - Fangni Du
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, China
| | - Sutapa Ghosal
- Environmental Health Laboratory, California Department of Public Health, Richmond, CA, 94804, USA
| | - Andrew B Gray
- Department of Environmental Sciences, University of California Riverside, 900 University Ave, Riverside, CA, 92521, USA
| | - Jeanne Hankett
- BASF Corporation, 1609 Biddle Ave., Wyandotte, MI, 48192, USA
| | - Paul A Helm
- Environmental Monitoring & Reporting Branch, Ontario Ministry of the Environment, Conservation and Parks, 125 Resources Road, Toronto, Ontario, Canada, M9P 3V6
| | - Kay T Ho
- US Environmental Protection Agency, Atlantic Coastal Environmental Sciences Division, Narragansett, RI, 02882, USA
| | - Timnit Kefela
- Bren School of Environmental Science & Management, University of California Santa Barbara, 2400 Bren Hall, Santa Barbara, CA, 93106, USA
| | - Gwendolyn Lattin
- The Moore Institute for Plastic Pollution Research, Long Beach, CA, 90803, USA
| | - Amy Lusher
- Norwegian Institute for Water Research, Oslo, Norway; Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Lei Mai
- Center for Environmental Microplastics Studies, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511443, China
| | - Rachel E McNeish
- Department of Biology, California State University Bakersfield, 9001 Stockdale Hwy, Bakersfield, CA, 93311, USA
| | - Odette Mina
- The Energy and Environmental Sustainability Laboratories, The Pennsylvania State University, 123 Land and Water Research Building, University Park, PA, 16802, USA
| | - Elizabeth C Minor
- Department of Chemistry and Biochemistry and Large Lakes Observatory, University of Minnesota Duluth, 2205 East 5th St, Duluth, MN, 55812, USA
| | - Sebastian Primpke
- Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Biologische Anstalt Helgoland, Kurpromenade 201, D-27498, Helgoland, Germany
| | | | - Violet C Renick
- Orange County Sanitation District, 10844 Ellis Ave, Fountain Valley, CA, 92708, USA
| | - Samiksha Singh
- Department of Environmental Sciences, University of California Riverside, 900 University Ave, Riverside, CA, 92521, USA
| | | | - Florian Vollnhals
- Institute for Nanotechnology and Correlative Microscopy (INAM), Äußere Nürnberger Str. 62, 91301, Forchheim, Germany
| | - Chelsea M Rochman
- Department of Ecology & Evolutionary Biology, University of Toronto, 25 Willcocks Street, Room 3055, Toronto, Ontario, M5S 3B2, Canada
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6
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El Khatib D, Langknecht TD, Cashman MA, Reiss M, Somers K, Allen H, Ho KT, Burgess RM. Assessment of filter subsampling and extrapolation for quantifying microplastics in environmental samples using Raman spectroscopy. Mar Pollut Bull 2023; 192:115073. [PMID: 37245322 PMCID: PMC10368175 DOI: 10.1016/j.marpolbul.2023.115073] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/12/2023] [Accepted: 05/13/2023] [Indexed: 05/30/2023]
Abstract
A common method for characterizing microplastics (MPs) involves capturing the plastic particles on a filter after extraction and isolation from the sediment particles. Microplastics captured on the filter are then scanned with Raman spectroscopy for polymer identification and quantification. However, scanning the whole filter manually using Raman analysis is a labor-intensive and time-consuming process. This study investigates a subsampling method for Raman spectroscopic analysis of microplastics (operationally defined here as 45-1000 μm in size) present in sediments and isolated onto laboratory filters. The method was evaluated using spiked MPs in deionized water and two environmentally contaminated sediments. Based on statistical analyses, we found quantification of a sub-fraction of 12.5 % of the filter in a wedge form was optimal, efficient, and accurate for estimating the entire filter count. The extrapolation method was then used to assess microplastic contamination in sediments from different marine regions of the United States.
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Affiliation(s)
- Dounia El Khatib
- Oak Ridge Institute of Science Education, c/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, Narragansett, RI, USA
| | - Troy D Langknecht
- Oak Ridge Institute of Science Education, c/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, Narragansett, RI, USA
| | - Michaela A Cashman
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, Narragansett, RI, USA
| | - Mark Reiss
- U.S. Environmental Protection Agency, Region 2, Water Division, New York, NY, USA
| | - Kelly Somers
- U.S. Environmental Protection Agency, Region 3, Water Division, Philadelphia, PA, USA
| | - Harry Allen
- U.S. Environmental Protection Agency, Region 9, Superfund and Emergency Management Division, San Francisco, CA, USA
| | - Kay T Ho
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, Narragansett, RI, USA
| | - Robert M Burgess
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, Narragansett, RI, USA.
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7
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Langknecht T, Lao W, Wong CS, Kotar S, El Khatib D, Robinson S, Burgess RM, Ho KT. Comparison of two procedures for microplastics analysis in sediments based on an interlaboratory exercise. Chemosphere 2023; 313:137479. [PMID: 36513195 PMCID: PMC9839611 DOI: 10.1016/j.chemosphere.2022.137479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/29/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Microplastics (MP) are distributed throughout ecosystems and settle into sediments where they may threaten benthic communities; however, methods for quantifying MP in sediments have not been standardized. This study compares two methods for analyzing MP in sediments, including extraction and identification, and provides recommendations for improvement. Two laboratories processed sediment samples using two methods, referred to as "core" and "augmentation", and identified particles with visual microscopy and spectroscopy. Using visual microscopy, the augmentation method yielded mean recoveries (78%) significantly greater than the core (47%) (p = 0.03), likely due to the use of separatory funnels in the former. Spectroscopic recovery of particles was lower at 42 and 54% for the core and augmentation methods, respectively. We suspect the visual identification recoveries are overestimations from erroneous identification of non-plastic materials persisting post-extraction, indicating visual identification alone is not an accurate method to identify MP, particularly in complex matrices like sediment. However, both Raman and FTIR proved highly accurate at identifying recovered MP, with 96.7% and 99.8% accuracy, respectively. Low spectroscopic recovery of spiked particles indicates that MP recovery from sediments is lower than previously assumed, and MP may be more abundant in sediments than current analyses suggest. To our knowledge, likely due to the excessive time/labor-intensity associated with MP analyses, this is the first interlaboratory study to quantify complete method performance (extraction, identification) for sediments, with regards to capabilities and limitations. This is essential as regulatory bodies move toward long-term environmental MP monitoring.
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Affiliation(s)
- Troy Langknecht
- Oak Ridge Institute of Science Education, C/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI, 02882, USA.
| | - Wenjian Lao
- Southern California Coastal Water Research Project Authority, 3535 Harbor Blvd., Suite 110, Costa Mesa, CA, 92626, USA
| | - Charles S Wong
- Southern California Coastal Water Research Project Authority, 3535 Harbor Blvd., Suite 110, Costa Mesa, CA, 92626, USA
| | - Syd Kotar
- Southern California Coastal Water Research Project Authority, 3535 Harbor Blvd., Suite 110, Costa Mesa, CA, 92626, USA
| | - Dounia El Khatib
- Oak Ridge Institute of Science Education, C/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI, 02882, USA
| | - Sandra Robinson
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI, 02882, USA
| | - Robert M Burgess
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI, 02882, USA
| | - Kay T Ho
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI, 02882, USA
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8
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Wang D, Saleh NB, Byro A, Zepp R, Sahle-Demessie E, Luxton TP, Ho KT, Burgess RM, Flury M, White JC, Su C. Nano-enabled pesticides for sustainable agriculture and global food security. Nat Nanotechnol 2022; 17:347-360. [PMID: 35332293 PMCID: PMC9774002 DOI: 10.1038/s41565-022-01082-8] [Citation(s) in RCA: 112] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 01/27/2022] [Indexed: 05/02/2023]
Abstract
Achieving sustainable agricultural productivity and global food security are two of the biggest challenges of the new millennium. Addressing these challenges requires innovative technologies that can uplift global food production, while minimizing collateral environmental damage and preserving the resilience of agroecosystems against a rapidly changing climate. Nanomaterials with the ability to encapsulate and deliver pesticidal active ingredients (AIs) in a responsive (for example, controlled, targeted and synchronized) manner offer new opportunities to increase pesticidal efficacy and efficiency when compared with conventional pesticides. Here, we provide a comprehensive analysis of the key properties of nanopesticides in controlling agricultural pests for crop enhancement compared with their non-nanoscale analogues. Our analysis shows that when compared with non-nanoscale pesticides, the overall efficacy of nanopesticides against target organisms is 31.5% higher, including an 18.9% increased efficacy in field trials. Notably, the toxicity of nanopesticides toward non-target organisms is 43.1% lower, highlighting a decrease in collateral damage to the environment. The premature loss of AIs prior to reaching target organisms is reduced by 41.4%, paired with a 22.1% lower leaching potential of AIs in soils. Nanopesticides also render other benefits, including enhanced foliar adhesion, improved crop yield and quality, and a responsive nanoscale delivery platform of AIs to mitigate various pressing biotic and abiotic stresses (for example, heat, drought and salinity). Nonetheless, the uncertainties associated with the adverse effects of some nanopesticides are not well-understood, requiring further investigations. Overall, our findings show that nanopesticides are potentially more efficient, sustainable and resilient with lower adverse environmental impacts than their conventional analogues. These benefits, if harnessed appropriately, can promote higher crop yields and thus contribute towards sustainable agriculture and global food security.
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Affiliation(s)
- Dengjun Wang
- Oak Ridge Institute for Science and Education, US Environmental Protection Agency, Ada, OK, USA.
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, USA.
| | - Navid B Saleh
- Department of Civil, Architectural and Environmental Engineering, University of Texas, Austin, TX, USA
| | - Andrew Byro
- Antimicrobials Division, Office of Pesticide Programs, US Environmental Protection Agency, Arlington, VA, USA
| | - Richard Zepp
- Center for Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Athens, GA, USA
| | - Endalkachew Sahle-Demessie
- Center for Environmental Solutions and Emergency Response, Office of Research and Development, US Environmental Protection Agency, Cincinnati, OH, USA
| | - Todd P Luxton
- Center for Environmental Solutions and Emergency Response, Office of Research and Development, US Environmental Protection Agency, Cincinnati, OH, USA
| | - Kay T Ho
- Center for Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Narragansett, RI, USA
| | - Robert M Burgess
- Center for Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Narragansett, RI, USA
| | - Markus Flury
- Department of Crop and Soil Sciences, Washington State University, Puyallup and Pullman, WA, USA
| | - Jason C White
- Connecticut Agricultural Experiment Station, New Haven, CT, USA
| | - Chunming Su
- Center for Environmental Solutions and Emergency Response, Office of Research and Development, US Environmental Protection Agency, Ada, OK, USA.
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9
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Giroux M, Zahra Z, Salawu OA, Burgess RM, Ho KT, Adeleye AS. Assessing the Environmental Effects Related to Quantum Dot Structure, Function, Synthesis and Exposure. Environ Sci Nano 2022; 9:867-910. [PMID: 35401985 PMCID: PMC8992011 DOI: 10.1039/d1en00712b] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Quantum dots (QDs) are engineered semiconductor nanocrystals with unique fluorescent, quantum confinement, and quantum yield properties, making them valuable in a range of commercial and consumer imaging, display, and lighting technologies. Production and usage of QDs are increasing, which increases the probability of these nanoparticles entering the environment at various phases of their life cycle. This review discusses the major types and applications of QDs, their potential environmental exposures, fates, and adverse effects on organisms. For most applications, release to the environment is mainly expected to occur during QD synthesis and end-product manufacturing since encapsulation of QDs in these devices prevents release during normal use or landfilling. In natural waters, the fate of QDs is controlled by water chemistry, light intensity, and the physicochemical properties of QDs. Research on the adverse effects of QDs primarily focuses on sublethal endpoints rather than acute toxicity, and the differences in toxicity between pristine and weathered nanoparticles are highlighted. A proposed oxidative stress adverse outcome pathway framework demonstrates the similarities among metallic and carbon-based QDs that induce reactive oxygen species formation leading to DNA damage, reduced growth, and impaired reproduction in several organisms. To accurately evaluate environmental risk, this review identifies critical data gaps in QD exposure and ecological effects, and provides recommendations for future research. Future QD regulation should emphasize exposure and sublethal effects of metal ions released as the nanoparticles weather under environmental conditions. To date, human exposure to QDs from the environment and resulting adverse effects has not been reported.
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Affiliation(s)
- Marissa Giroux
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, Narragansett, Rhode Island, USA
| | - Zahra Zahra
- Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697-2175, USA
| | - Omobayo A. Salawu
- Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697-2175, USA
| | - Robert M Burgess
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, Narragansett, Rhode Island, USA
| | - Kay T Ho
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, Narragansett, Rhode Island, USA
| | - Adeyemi S Adeleye
- Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA 92697-2175, USA
- CORRESPONDING AUTHOR: Adeyemi S. Adeleye (; Phone: (949) 824-5819)
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10
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Cashman MA, Langknecht T, El Khatib D, Burgess RM, Boving TB, Robinson S, Ho KT. Quantification of microplastics in sediments from Narragansett Bay, Rhode Island USA using a novel isolation and extraction method. Mar Pollut Bull 2022; 174:113254. [PMID: 34923404 PMCID: PMC9019827 DOI: 10.1016/j.marpolbul.2021.113254] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 05/24/2023]
Abstract
Microplastics are small plastic particles found ubiquitously in marine environments. In this study, a hybridized method was developed for the extraction of microplastics (45-1000 μm) from sediments using sodium bromide solution for density separation. Method development was tested using spiked microplastics as internal standards. The method was then used to extract microplastics from sediments in Narragansett Bay, Rhode Island, USA. Suspect microplastics were analyzed with Raman spectroscopy. Microplastic abundance ranged from 40 particles/100 g sediment to 4.6 million particles/100 g sediment (wet weight). Cellulose acetate fibers were the most abundant microplastic. These results are some of the first data for microplastics in Rhode Island sediments.
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Affiliation(s)
- Michaela A Cashman
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA; University of Rhode Island, Department of Geosciences, 9 E Alumni Avenue, Kingston, RI 02881, USA.
| | - Troy Langknecht
- Oak Ridge Institute of Science Education, c/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Dounia El Khatib
- Oak Ridge Institute of Science Education, c/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Robert M Burgess
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Thomas B Boving
- University of Rhode Island, Department of Geosciences, 9 E Alumni Avenue, Kingston, RI 02881, USA; University of Rhode Island, Department of Civil Engineering, 9 E Alumni Avenue, Kingston, RI 02881, USA
| | - Sandra Robinson
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Kay T Ho
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
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11
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Abstract
Nanoplastics (NPs) are present in food, soil, water, air and personal care products, resulting in concern regarding exposure and potential adverse effects. NPs principally arise from the degradation of larger-sized plastic particles. The uptake and effects of NPs in humans is not yet known. However, recent laboratory studies have documented the uptake and adverse effects of NPs from the cellular to the community level. As NPs are in the size range of particles that can be absorbed by cells, research on these materials should be accelerated to properly assess their potential risks.
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Affiliation(s)
- Michael F Hughes
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Computational Toxicology and Exposure, Chemical Characterization and Exposure Division, Research Triangle Park, NC, USA
| | - Haley M Clapper
- Oak Ridge Institute for Sciences and Education, Research Triangle Park, NC, USA
| | - Robert M Burgess
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Modeling and Measurement, Atlantic Coastal Environmental Sciences Division, Narragansett, Rhode Island, USA
| | - Kay T Ho
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Modeling and Measurement, Atlantic Coastal Environmental Sciences Division, Narragansett, Rhode Island, USA
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12
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Pelletier M, Cobb D, Rocha K, Ho KT, Cantwell MG, Perron M, Charpentier MA, Buffum HW, Hale SS, Burgess RM. Benthic macroinvertebrate community response to environmental changes over seven decades in an urbanized estuary in the northeastern United States. Mar Environ Res 2021; 169:105323. [PMID: 33862568 PMCID: PMC8292207 DOI: 10.1016/j.marenvres.2021.105323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 03/22/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
Narragansett Bay is representative of New England, USA urbanized estuaries, with colonization in the early 17th century, and development into industrial and transportation centers in the late 18th and early 20th century. Increasing nationwide population and lack of infrastructure maintenance led to environmental degradation, and then eventual improvement after implementation of contaminant control and sewage treatment starting in the 1970s. Benthic macroinvertebrate community structure was expected to respond to these environmental changes. This study assembled data sets from the 1950s through 2010s to examine whether quantitative aggregate patterns in the benthic community corresponded qualitatively to stressors and management actions in the watershed. In Greenwich Bay and Providence River, patterns of benthic response corresponded to the decline and then improvement in sewage treatment at the Fields Point wastewater treatment plant. In Mount Hope Bay, the benthos corresponded to changes in bay fish populations due to thermal discharge from the Brayton Point power plant. The benthos of the Upper West Passage corresponded to climatic changes that caused regime shifts in the plankton and fish communities. Future work will examine the effects of further environmental improvements in the face of continued climatic changes and population growth.
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Affiliation(s)
- Marguerite Pelletier
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Atlantic Coastal Environmental Science Division, Narragansett, RI, USA.
| | - Donald Cobb
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Atlantic Coastal Environmental Science Division, Narragansett, RI, USA
| | - Kenneth Rocha
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Atlantic Coastal Environmental Science Division, Narragansett, RI, USA
| | - Kay T Ho
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Atlantic Coastal Environmental Science Division, Narragansett, RI, USA
| | - Mark G Cantwell
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Atlantic Coastal Environmental Science Division, Narragansett, RI, USA
| | - Monique Perron
- US Environmental Protection Agency, Office of Chemical Safety and Pollution Prevention, Office of Pesticide Programs, Health Effects Division, Arlington, VA, USA
| | | | - Henry W Buffum
- General Dynamics Information Technology, Narragansett, RI, USA
| | - Stephen S Hale
- US Environmental Protection Agency, Narragansett, RI, USA
| | - Robert M Burgess
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Atlantic Coastal Environmental Science Division, Narragansett, RI, USA
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13
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Cashman MA, Ho KT, Boving TB, Russo S, Robinson S, Burgess RM. Comparison of microplastic isolation and extraction procedures from marine sediments. Mar Pollut Bull 2020; 159:111507. [PMID: 32763561 PMCID: PMC7990055 DOI: 10.1016/j.marpolbul.2020.111507] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/21/2020] [Accepted: 07/21/2020] [Indexed: 05/06/2023]
Abstract
Microplastics (MPs) are small (<5 mm) plastic particles which pose a threat to marine ecosystems. Identifying MPs is crucial for understanding their fate and effects. Many MP extraction methods exist, but procedural differences prevent meaningful comparisons across datasets. This method comparison examines the efficiency of five methods for extracting MPs (40-710 μm) from marine sediments. Known quantities of MPs were spiked into sediments. The MPs were extracted and enumerated to demonstrate percent recovery. Findings determined that sediment matrix, MP properties, and extraction method affect the percent recovery of MPs from sediments. Average recoveries of spiked microplastics were between 0 and 87.4% and varied greatly by sediment type, microplastic, and method of extraction. In general, larger particle and lower density MPs were more effectively recovered. Marine sediments low in organic matter and with larger grain size also had higher percent recoveries of MPs. These findings support the need for method optimization and unified procedures.
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Affiliation(s)
- Michaela A Cashman
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA; University of Rhode Island, Department of Geosciences, 9 E Alumni Avenue, Kingston, RI 02881, USA.
| | - Kay T Ho
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Thomas B Boving
- University of Rhode Island, Department of Geosciences, 9 E Alumni Avenue, Kingston, RI 02881, USA; University of Rhode Island, Department of Civil Engineering, 9 E Alumni Avenue, Kingston, RI 02881, USA
| | - Stephen Russo
- ORAU, c/o U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Sandra Robinson
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
| | - Robert M Burgess
- U.S. Environmental Protection Agency, ORD/CEMM Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
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14
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Khan B, Ho KT, Burgess RM. Application of Biomarker Tools Using Bivalve Models Toward the Development of Adverse Outcome Pathways for Contaminants of Emerging Concern. Environ Toxicol Chem 2020; 39:1472-1484. [PMID: 32452040 PMCID: PMC7657996 DOI: 10.1002/etc.4757] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 02/10/2020] [Accepted: 05/18/2020] [Indexed: 05/24/2023]
Abstract
As contaminant exposures in aquatic ecosystems continue to increase, the need for streamlining research efforts in environmental toxicology using predictive frameworks also grows. One such framework is the adverse outcome pathway (AOP). An AOP framework organizes and utilizes toxicological information to connect measurable molecular endpoints to an adverse outcome of regulatory relevance via a series of events at different levels of biological organization. Molecular endpoints or biomarkers are essential to develop AOPs and are valuable early warning signs of the toxicity of pollutants, including contaminants of emerging concern. Ecological risk-assessment approaches using tools such as biomarkers and AOPs benefit from identification of molecular targets conserved across species. Bivalve models are useful in such approaches and integral to our understanding of ecological and human health risks associated with contaminant exposures. We discuss the value of using biomarker approaches in bivalve models to meet the demands of twenty-first-century toxicology. Environ Toxicol Chem 2020;39:1472-1484. © 2020 SETAC.
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Affiliation(s)
- Bushra Khan
- ORISE Research Participant at the US Environmental
Protection Agency, ORD-CEMM, Atlantic Coastal Environmental Sciences Division, 27
Tarzwell Drive, Narragansett, RI 02882, USA
| | - Kay T. Ho
- US Environmental Protection Agency, ORD-CEMM, Atlantic
Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882,
USA
| | - Robert M. Burgess
- US Environmental Protection Agency, ORD-CEMM, Atlantic
Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882,
USA
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15
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Ho KT, Konovets IM, Terletskaya AV, Milyukin MV, Lyashenko AV, Shitikova LI, Shevchuk LI, Afanasyev SA, Krot YG, Zorina-Sakharova KY, Goncharuk VV, Skrynnyk MM, Cashman MA, Burgess RM. Contaminants, mutagenicity and toxicity in the surface waters of Kyiv, Ukraine. Mar Pollut Bull 2020; 155:111153. [PMID: 32469773 PMCID: PMC8684704 DOI: 10.1016/j.marpolbul.2020.111153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 04/02/2020] [Accepted: 04/03/2020] [Indexed: 06/11/2023]
Abstract
Kyiv is Ukraine's capital and largest city. Home to 3 million people, this area has a rich history of agriculture and industry. The Dnieper River is Ukraine's largest river and it passes through the center of Kyiv. Little information on emerging and legacy compounds or their toxicity in the Dnieper River exists. For this investigation, water was sampled for PAHs, PCBs, metals and emerging contaminants including pharmaceuticals and personal care products. The effects of surface waters in the Dnieper were evaluated using the Ames, chronic and acute daphnia, and a ciliate (Colpoda stennii) assays. Concentrations of legacy and emerging contaminants were found in seven stations near the municipal water treatment plant (MWTP) and receiving waters. The MWTP appeared to remove some of the emerging contaminants, however the legacy compounds (PCBs and PAHs) were not affected by the MWTP and appeared to be more wide-spread indicating a number of sources to the Dnieper River. Acute and chronic toxicity were associated with the influent and effluent of the MWTP, however mutagenicity was noted in surface waters throughout the Dnieper River including upstream of the MWTP. This study provides the first snapshot of possible human health and ecological risks associated with surface waters of the Dnieper. More research on seasonal changes and sources of toxicity, mutagenicity and contaminants would aid in completing a more comprehensive risk assessment of surface waters of the Dnieper River.
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Affiliation(s)
- Kay T Ho
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling -Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA.
| | - Igor M Konovets
- Institute of Hydrobiology, National Academy of Science, 12 Geroyiv Stalingrada Prospect, Kyiv, Ukraine
| | - Anna V Terletskaya
- Institute of Colloidal Chemistry and Chemistry of Water, National Academy of Sciences, 42 Vernadsky Boulavard, Kyiv, Ukraine
| | - Mykhailo V Milyukin
- Institute of Colloidal Chemistry and Chemistry of Water, National Academy of Sciences, 42 Vernadsky Boulavard, Kyiv, Ukraine
| | - Artem V Lyashenko
- Institute of Hydrobiology, National Academy of Science, 12 Geroyiv Stalingrada Prospect, Kyiv, Ukraine
| | - Larisa I Shitikova
- State Body Ukrainian I.I. Mechnikov Research Anti-Plague Institute, Ministry of Health of Ukraine, 2/4 Tserkovna Street, Odesa, Ukraine
| | - Lyudmila I Shevchuk
- State Body Ukrainian I.I. Mechnikov Research Anti-Plague Institute, Ministry of Health of Ukraine, 2/4 Tserkovna Street, Odesa, Ukraine
| | - Sergey A Afanasyev
- Institute of Hydrobiology, National Academy of Science, 12 Geroyiv Stalingrada Prospect, Kyiv, Ukraine
| | - Yurii G Krot
- Institute of Hydrobiology, National Academy of Science, 12 Geroyiv Stalingrada Prospect, Kyiv, Ukraine
| | | | - Vladislav V Goncharuk
- Institute of Colloidal Chemistry and Chemistry of Water, National Academy of Sciences, 42 Vernadsky Boulavard, Kyiv, Ukraine
| | - Maksym M Skrynnyk
- Institute of Colloidal Chemistry and Chemistry of Water, National Academy of Sciences, 42 Vernadsky Boulavard, Kyiv, Ukraine
| | - Michaela A Cashman
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling -Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA; Department of Geosciences, University of Rhode Island, 330 Woodward Hall, Kingston, RI 02881, USA
| | - Robert M Burgess
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling -Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA
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16
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Khan B, Adeleye AS, Burgess RM, Russo SM, Ho KT. Effects of graphene oxide nanomaterial exposures on the marine bivalve, Crassostrea virginica. Aquat Toxicol 2019; 216:105297. [PMID: 31550666 PMCID: PMC6837171 DOI: 10.1016/j.aquatox.2019.105297] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 09/10/2019] [Accepted: 09/11/2019] [Indexed: 05/13/2023]
Abstract
Since its discovery in 2004, graphene has been used in a wide variety of fields including biomedicine, electronics, filtration materials, and surface coatings. The rapidly expanding consumer market for graphene family nanomaterials (GFNs), such as graphene oxide (GO), raises concern regarding their environmental toxicity. The aim of this study was to evaluate the effects of GO exposures in a marine filter-feeding bivalve (Crassostrea virginica) using sublethal biomarker approaches that can contribute to the development of an adverse outcome pathway (AOP). A 14-day study was conducted to identify tissue-specific molecular markers of GO toxicity using a static renewal design. Elevated lipid peroxidation and changes in glutathione-s-transferase (GST) activities were observed in gills and digestive gland tissues of the GO-exposed oysters. These cellular changes were noted for 2.5 and 5 mg/L GO exposures in seawater. Based on our results, reactive oxygen species (ROS)-induced oxidative damage is identified as a key event in the proposed AOP. Additionally, detoxification enzymes, such as GST, are thought to be involved in stress signaling leading to adverse effects on cellular health. This study is a part of our two-tier approach towards the identification of short- and long-term effects of GO exposures. This work, together with our previous 72 h exposure, represents the application of biomarker-based investigations in the process of AOP development for graphene family nanomaterials.
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Affiliation(s)
- Bushra Khan
- National Research Council Postdoctoral Research Associate at the US Environmental Protection Agency, ORD-NHEERL, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI, 02882, United States.
| | - Adeyemi S Adeleye
- National Research Council Postdoctoral Research Associate at the US Environmental Protection Agency, ORD-NHEERL, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI, 02882, United States
| | - Robert M Burgess
- US Environmental Protection Agency, ORD-NHEERL, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI, 02882, United States
| | - Stephen M Russo
- Oak Ridge Associated Universities Student Services Contractor at the US Environmental Protection Agency, ORD-NHEERL, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI, 02882, United States
| | - Kay T Ho
- US Environmental Protection Agency, ORD-NHEERL, Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI, 02882, United States
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17
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Abstract
The possibility of graphene oxide (GO) exposure to the environment has spurred several studies investigating the fate of this nanoparticle (NP). However, there is currently little or no data on the fate of GO in estuarine and marine waters. This study investigated the aggregation, sedimentation, and transformation of GO in saline waters, considering the roles of salinity (0-50 ‰), light (visible light and solar irradiation), and aging, among others. The attachment efficiency of GO reached unity at 1.33 ‰. The sedimentation rate of GO increased with salinity up to 10 ‰ after which it decreased due to formation of ramified GO agglomerates and media density. On the basis of the sedimentation rate determined at 30 ‰ (0.121 m/d), the residence time of GO agglomerates in the euphotic zone of typical open oceans will exceed 500 days. Aging in the presence of visible light increased the relative abundance of the GO's aromatic (C-C/C=C) fraction, reducing the NP. Reduction of GO in visible light was confirmed via UV-vis and Raman spectroscopic techniques. Reduction of GO was faster under solar irradiation. This study demonstrates that when introduced into saline waters, GO will undergo a range of transformations affecting its fate and potential effects to aquatic organisms.
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Affiliation(s)
- Adeyemi S. Adeleye
- National Research Council Research Associate, US Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Dr., Narragansett, RI 02882, USA
| | - Kay T. Ho
- US Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Dr., Narragansett, RI 02882, USA
| | - Min Zhang
- Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tong Yan Road 38, Tianjin 300350, China
| | - Yao Li
- Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tong Yan Road 38, Tianjin 300350, China
| | - Robert M. Burgess
- US Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Dr., Narragansett, RI 02882, USA
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18
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Khan B, Adeleye AS, Burgess RM, Smolowitz R, Russo SM, Ho KT. A 72-h exposure study with eastern oysters (Crassostrea virginica) and the nanomaterial graphene oxide. Environ Toxicol Chem 2019; 38:820-830. [PMID: 30667076 PMCID: PMC6580423 DOI: 10.1002/etc.4367] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 10/10/2018] [Accepted: 01/16/2019] [Indexed: 05/07/2023]
Abstract
Graphene is a 2-dimensional nanomaterial with unique mechanical, thermal, electrical, and optical properties. With increasing applications of graphene-family nanomaterials (GFNs) in electronics, biomedicine, and surface coatings, concern for their impacts on aquatic ecosystems is rising. Current information on the toxicity of GFNs, including graphene oxide, is scarce. Filter-feeding bivalves, such as eastern oysters, are good models for nanomaterial exposure studies. We present results from a 72-h static renewal oyster study using 1 and 10 mg/L graphene oxide, which, to our knowledge, is the first report on in vivo effects of graphene oxide exposures in marine bivalves. Water samples were analyzed for graphene oxide concentration and size assessments. Gill and digestive gland tissues were evaluated for lipid peroxidation and glutathione-S-transferase (GST) activity. In addition, gill sections were fixed for histopathological analyses. Elevated lipid peroxidation was noted in oysters exposed to 10 mg/L graphene oxide. No significant changes in GST activity were observed, but reduced total protein levels were found in digestive gland tissues of exposed oysters at both concentrations. Loss of mucous cells, hemocytic infiltration, and vacuolation were observed in gills of exposed oysters. The results indicate that short-term graphene oxide exposures can induce oxidative stress and epithelial inflammation and adversely affect overall oyster health. Further investigations regarding the fate and sublethal effects of graphene oxide are critical to understanding the risks associated with a rapidly growing graphene consumer market. Environ Toxicol Chem 2019;38:820-830. Published 2019 Wiley Periodicals Inc. on behalf of SETAC. This article is a US government work and, as such, is in the public domain in the United States of America.
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Affiliation(s)
- Bushra Khan
- National Research Council Postdoctoral Research Associate, US Environmental Protection Agency, Atlantic Ecology Division, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, Rhode Island, USA
- corresponding author: Bushra Khan,
| | - Adeyemi S. Adeleye
- National Research Council Postdoctoral Research Associate, US Environmental Protection Agency, Atlantic Ecology Division, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, Rhode Island, USA
| | - Robert M. Burgess
- US Environmental Protection Agency, Atlantic Ecology Division, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, Rhode Island, USA
| | | | - Stephen M. Russo
- Oak Ridge Associated Universities Student Services Contractor, US Environmental Protection Agency, Atlantic Ecology Division, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, Rhode Island, USA
| | - Kay T. Ho
- US Environmental Protection Agency, Atlantic Ecology Division, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Narragansett, Rhode Island, USA
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Petersen EJ, Mortimer M, Burgess RM, Handy R, Hanna S, Ho KT, Johnson M, Loureiro S, Selck H, Scott-Fordsmand JJ, Spurgeon D, Unrine J, van den Brink N, Wang Y, White J, Holden P. Strategies for robust and accurate experimental approaches to quantify nanomaterial bioaccumulation across a broad range of organisms. Environ Sci Nano 2019; 6:10.1039/C8EN01378K. [PMID: 31579514 PMCID: PMC6774209 DOI: 10.1039/c8en01378k] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
One of the key components for environmental risk assessment of engineered nanomaterials (ENMs) is data on bioaccumulation potential. Accurately measuring bioaccumulation can be critical for regulatory decision making regarding material hazard and risk, and for understanding the mechanism of toxicity. This perspective provides expert guidance for performing ENM bioaccumulation measurements across a broad range of test organisms and species. To accomplish this aim, we critically evaluated ENM bioaccumulation within three categories of organisms: single-celled species, multicellular species excluding plants, and multicellular plants. For aqueous exposures of suspended single-celled and small multicellular species, it is critical to perform a robust procedure to separate suspended ENMs and small organisms to avoid overestimating bioaccumulation. For many multicellular organisms, it is essential to differentiate between the ENMs adsorbed to external surfaces or in the digestive tract and the amount absorbed across epithelial tissues. For multicellular plants, key considerations include how exposure route and the role of the rhizosphere may affect the quantitative measurement of uptake, and that the efficiency of washing procedures to remove loosely attached ENMs to the roots is not well understood. Within each organism category, case studies are provided to illustrate key methodological considerations for conducting robust bioaccumulation experiments for different species within each major group. The full scope of ENM bioaccumulation measurements and interpretations are discussed including conducting the organism exposure, separating organisms from the ENMs in the test media after exposure, analytical methods to quantify ENMs in the tissues or cells, and modeling the ENM bioaccumulation results. One key finding to improve bioaccumulation measurements was the critical need for further analytical method development to identify and quantify ENMs in complex matrices. Overall, the discussion, suggestions, and case studies described herein will help improve the robustness of ENM bioaccumulation studies.
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Affiliation(s)
- Elijah J. Petersen
- Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899
| | - Monika Mortimer
- Bren School of Environmental Science and Management, Earth Research Institute and University of California Center for the Environmental Implications of Nanotechnology (UC CEIN), University of California, Santa Barbara, California 93106, United States
| | - Robert M. Burgess
- US Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Dr., Narragansett, RI 02882
| | - Richard Handy
- Plymouth University, School of Biological Sciences, United Kingdom
| | - Shannon Hanna
- Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899
| | - Kay T. Ho
- US Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Dr., Narragansett, RI 02882
| | - Monique Johnson
- Material Measurement Laboratory, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899
| | - Susana Loureiro
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Henriette Selck
- Roskilde University, Dept. of Science and Environment, Denmark
| | | | - David Spurgeon
- Centre for Ecology and Hydrology, Maclean Building, Wallingford, Oxfordshire, OX10 8BB, United Kingdom
| | - Jason Unrine
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546, USA
| | - Nico van den Brink
- Department of Toxicology, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Ying Wang
- Bren School of Environmental Science and Management, Earth Research Institute and University of California Center for the Environmental Implications of Nanotechnology (UC CEIN), University of California, Santa Barbara, California 93106, United States
| | - Jason White
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT 06504, United States
| | - Patricia Holden
- Bren School of Environmental Science and Management, Earth Research Institute and University of California Center for the Environmental Implications of Nanotechnology (UC CEIN), University of California, Santa Barbara, California 93106, United States
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20
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Khan B, Burgess RM, Fogg SA, Cantwell MG, Katz DR, Ho KT. Cellular responses to in vitro exposures to β-blocking pharmaceuticals in hard clams and Eastern oysters. Chemosphere 2018; 211:360-370. [PMID: 30077932 PMCID: PMC6158783 DOI: 10.1016/j.chemosphere.2018.07.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 07/24/2018] [Accepted: 07/25/2018] [Indexed: 05/10/2023]
Abstract
Increased consumption and improper disposal of prescription medication, such as beta (β)-blockers, contribute to their introduction into waterways and may pose threats to non-target aquatic organisms. There has been rising concern about the impacts of these prescription drugs on coastal ecosystems, especially because wastewater treatment plants are not designed to eliminate them from the discharge. Few studies have characterized the sublethal effects of β-blocker exposures in marine invertebrates. The overall aim of our research is to identify cellular responses of two commercially important filter-feeding marine bivalves, hard clams (Mercenaria mercenaria) and Eastern oysters (Crassostrea virginica), upon exposures to two β-blocker drugs, propranolol and metoprolol. In vitro exposures with bivalve digestive gland and gill tissues were conducted where tissues were separately exposed to each drug for 24 h. Tissue samples were analyzed for cellular damage (lysosomal membrane destabilization and lipid peroxidation), total antioxidant capacity, and glutathione-s-transferase activity. Elevated damage and changes in enzyme activities were noted in the exposed tissues at environmentally relevant concentrations. Differences in species and tissue sensitivities and responses to exposures were also observed. These studies enhance our understanding of the potential impacts of prescription medication on coastal organisms. Additionally, this work demonstrates that filter-feeders may serve as good model organisms to examine the effects of unintended environmental exposures to β-blockers. These studies are part of our ongoing work aimed at evaluation of sublethal biomarkers of pharmaceutical exposures and identification of key events that can contribute to the development of adverse outcome pathways (AOPs).
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Affiliation(s)
- Bushra Khan
- National Research Council Postdoctoral Research Associate, Narragansett, RI, USA.
| | - Robert M Burgess
- US Environmental Protection Agency, ORD-NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - Sandra A Fogg
- Oak Ridge Associated Universities Student Services, Narragansett, RI, USA
| | - Mark G Cantwell
- US Environmental Protection Agency, ORD-NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - David R Katz
- US Environmental Protection Agency, ORD-NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - Kay T Ho
- US Environmental Protection Agency, ORD-NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
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21
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Parks AN, Cashman MA, Perron MM, Portis L, Cantwell MG, Katz DR, Ho KT, Burgess RM. Magnitude of acute toxicity of marine sediments amended with conventional copper and nanocopper. Environ Toxicol Chem 2018; 37:2677-2681. [PMID: 30024047 PMCID: PMC6192042 DOI: 10.1002/etc.4232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 06/18/2017] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
It is well known that copper (Cu) is toxic to marine organisms. We measured and compared the acute toxicity of several forms of Cu (including nanoCu) amended into a marine sediment with mysids and amphipods. For all the forms of Cu tested, toxicity, measured as the median lethal concentration, ranged from 708 to > 2400 mg Cu/kg (dry sediment) for mysids and 258 to 1070 mg Cu/kg (dry sediment) for amphipods. Environ Toxicol Chem 2018;37:2677-2681. © 2018 SETAC. This article is a US government work and, as such, is in the public domain in the United States of America.
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Affiliation(s)
- Ashley N Parks
- Southern California Coastal Water Research Project, Costa Mesa, CA, USA
| | - Michaela A Cashman
- University of Rhode Island, Department of Geosciences, Kingston, RI, USA
- Oak Ridge Institute for Science and Education c/o U.S. EPA, ORD/NRMRL/LMMD, Cincinnati, OH, USA
| | - Monique M Perron
- U.S. EPA, OCSPP, Office of Pesticides Programs, Washington, DC, USA
| | - Lisa Portis
- Lifespan Ambulatory Care Center, East Greenwich, RI, USA
| | - Mark G Cantwell
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - David R Katz
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - Kay T Ho
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - Robert M Burgess
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
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22
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Parks AN, Cantwell MG, Katz DR, Cashman MA, Luxton TP, Clar JG, Perron MM, Portis L, Ho KT, Burgess RM. Assessing the release of copper from nanocopper-treated and conventional copper-treated lumber into marine waters II: Forms and bioavailability. Environ Toxicol Chem 2018; 37:1969-1979. [PMID: 29575127 PMCID: PMC6038930 DOI: 10.1002/etc.4140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/06/2018] [Accepted: 03/22/2018] [Indexed: 05/18/2023]
Abstract
One application of nanocopper is as a wood-preserving pesticide in pressure-treated lumber. Recent research has shown that pressure-treated lumber amended with micronized copper azole (MCA), which contains nanosized copper, releases copper under estuarine and marine conditions. The form of copper released (i.e., ionic, nanocopper [1-100 nm in size]) is not fully understood but will affect the bioavailability and toxicity of the metal. In the present study, multiple lines of evidence, including size fractionation, ion-selective electrode electrochemistry, comparative toxicity, and copper speciation were used to determine the form of copper released from lumber blocks and sawdust. The results of all lines of evidence supported the hypothesis that ionic copper was released from MCA lumber and sawdust, with little evidence that nanocopper was released. For example, copper concentrations in size fractionations of lumber block aqueous leachates including unfiltered, 0.1 μm, and 3 kDa were not significantly different, suggesting that the form of copper released was in the size range operationally defined as dissolved. These results correlated with the ion-selective electrode data which detects only ionic copper. In addition, comparative toxicity testing resulted in a narrow range of median lethal concentrations (221-257 μg/L) for MCA lumber blocks and CuSO4 . We conclude that ionic copper was released from the nanocopper pressure-treated lumber under estuarine and marine conditions. Environ Toxicol Chem 2018;37:1969-1979. Published 2018 Wiley Periodicals Inc. on behalf of SETAC. This article is a US government work and, as such, is in the public domain in the United States of America.
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Affiliation(s)
- Ashley N Parks
- National Research Council c/o U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - Mark G Cantwell
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - David R Katz
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - Michaela A Cashman
- University of Rhode Island, Department of Geosciences, Kingston, RI, USA
| | - Todd P Luxton
- U.S. EPA, ORD/NRMRL, Land and Materials Management Division, Cincinnati, OH, USA
| | - Justin G Clar
- Oak Ridge Institute for Science and Education c/o U.S. EPA, ORD/NRMRL/LMMD, Cincinnati, OH, USA
| | - Monique M Perron
- US EPA, OCSPP, Office of Pesticides Programs, Washington, DC, USA
| | - Lisa Portis
- Lifespan Ambulatory Care Center, East Greenwich, RI USA
| | - Kay T Ho
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - Robert M Burgess
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
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23
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Parks AN, Cantwell MG, Katz DR, Cashman MA, Luxton TP, Ho KT, Burgess RM. Assessing the release of copper from nanocopper-treated and conventional copper-treated lumber into marine waters I: Concentrations and rates. Environ Toxicol Chem 2018; 37:1956-1968. [PMID: 29575152 PMCID: PMC6040830 DOI: 10.1002/etc.4141] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 12/08/2017] [Accepted: 03/13/2018] [Indexed: 05/18/2023]
Abstract
Little is known about the release of metal engineered nanomaterials (ENMs) from consumer goods, including lumber treated with micronized copper. Micronized copper is a recent form of antifouling wood preservative containing nanosized copper particles for use in pressure-treated lumber. The present study investigated the concentrations released and the release rate of total copper over the course of 133 d under freshwater, estuarine, and marine salinity conditions (0, 1, 10, and 30‰) for several commercially available pressure-treated lumbers: micronized copper azole (MCA) at 0.96 and 2.4 kg/m3 , alkaline copper quaternary (ACQ) at 0.30 and 9.6 kg/m3 , and chromated copper arsenate (CCA) at 40 kg/m3 . Lumber was tested as blocks and as sawdust. Overall, copper was released from all treated lumber samples. Under leaching conditions, total release ranged from 2 to 55% of the measured copper originally in the lumber, with release rate constants from the blocks of 0.03 to 2.71 (units per day). Generally, measured release and modeled equilibrium concentrations were significantly higher in the estuarine conditions compared with freshwater or marine salinities, whereas rate constants showed very limited differences between salinities. Furthermore, organic carbon was released during the leaching and demonstrated a significant relationship with released copper concentrations as a function of salinity. The results indicate that copper is released into estuarine/marine waters from multiple wood treatments including lumber amended with nanoparticle-sized copper. Environ Toxicol Chem 2018;37:1956-1968. Published 2018 Wiley Periodicals Inc. on behalf of SETAC. This article is a US government work and, as such, is in the public domain in the United States of America.
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Affiliation(s)
- Ashley N Parks
- Southern California Coastal Water Research Project, Costa Mesa, CA, USA
| | - Mark G Cantwell
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - David R Katz
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - Michaela A Cashman
- University of Rhode Island, Department of Geosciences, Kingston, RI, USA
| | - Todd P Luxton
- U.S. EPA, ORD/NRMRL, Land Remediation and Pollution Control Division, Division, Cincinnati, OH, USA
| | - Kay T Ho
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
| | - Robert M Burgess
- U.S. EPA, ORD/NHEERL, Atlantic Ecology Division, Narragansett, RI, USA
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24
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Goodwin DG, Adeleye AS, Sung L, Ho KT, Burgess RM, Petersen EJ. Detection and Quantification of Graphene-Family Nanomaterials in the Environment. Environ Sci Technol 2018; 52:4491-4513. [PMID: 29505723 PMCID: PMC5940015 DOI: 10.1021/acs.est.7b04938] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
An increase in production of commercial products containing graphene-family nanomaterials (GFNs) has led to concern over their release into the environment. The fate and potential ecotoxicological effects of GFNs in the environment are currently unclear, partially due to the limited analytical methods for GFN measurements. In this review, the unique properties of GFNs that are useful for their detection and quantification are discussed. The capacity of several classes of techniques to identify and/or quantify GFNs in different environmental matrices (water, soil, sediment, and organisms), after environmental transformations, and after release from a polymer matrix of a product is evaluated. Extraction and strategies to combine methods for more accurate discrimination of GFNs from environmental interferences as well as from other carbonaceous nanomaterials are recommended. Overall, a comprehensive review of the techniques available to detect and quantify GFNs are systematically presented to inform the state of the science, guide researchers in their selection of the best technique for the system under investigation, and enable further development of GFN metrology in environmental matrices. Two case studies are described to provide practical examples of choosing which techniques to utilize for detection or quantification of GFNs in specific scenarios. Because the available quantitative techniques are somewhat limited, more research is required to distinguish GFNs from other carbonaceous materials and improve the accuracy and detection limits of GFNs at more environmentally relevant concentrations.
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Affiliation(s)
- David G. Goodwin
- Engineering Laboratory, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899
| | - Adeyemi S. Adeleye
- National Research Council Research Associate, US Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Dr., Narragansett, RI 02882
| | - Lipiin Sung
- Engineering Laboratory, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899
| | - Kay T. Ho
- US Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Dr., Narragansett, RI 02882
| | - Robert M. Burgess
- US Environmental Protection Agency, Atlantic Ecology Division, 27 Tarzwell Dr., Narragansett, RI 02882
| | - Elijah J. Petersen
- Material Measurement Laboratory, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899
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Wang H, Ho KT, Wu F, Burgess RM. Challenges associated with performing environmental research on titanium dioxide nanoparticles in aquatic environments. Integr Environ Assess Manag 2018; 14:298-300. [PMID: 29446880 DOI: 10.1002/ieam.2001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- Huanhua Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing
| | - Kay T Ho
- US Environmental Protection Agency, ORD/NHEERL, Atlantic Ecology Division, Narragansett, Rhode Island
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing
| | - Robert M Burgess
- US Environmental Protection Agency, ORD/NHEERL, Atlantic Ecology Division, Narragansett, Rhode Island
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Ho KT, Portis L, Chariton AA, Pelletier M, Cantwell M, Katz D, Cashman M, Parks A, Baguley JG, Conrad-Forrest N, Boothman W, Luxton T, Simpson SL, Fogg S, Burgess RM. Effects of micronized and nano-copper azole on marine benthic communities. Environ Toxicol Chem 2018; 37:362-375. [PMID: 29072786 PMCID: PMC6699489 DOI: 10.1002/etc.3954] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 06/28/2017] [Accepted: 08/16/2017] [Indexed: 05/18/2023]
Abstract
The widespread use of copper nanomaterials (CuNMs) as antibacterial and antifouling agents in consumer products increases the risk for metal contamination and adverse effects in aquatic environments. Information gaps exist on the potential toxicity of CuNMs in marine environments. We exposed field-collected marine meio- and macrobenthic communities to sediments spiked with micronized copper azole (MCA) using a novel method that brings intact benthic cores into the laboratory and exposes the organisms via surface application of sediments. Treatments included field and laboratory controls, 3 spiked sediments: low-MCA (51.9 mg/kg sediment), high-MCA (519 mg/kg sediment), and CuSO4 (519 mg/kg sediment). In addition, single-species acute testing was performed with both MCA and CuSO4. Our results indicate that meio- and macrofaunal assemblages exposed to High-MCA and CuSO4 treatments differed significantly from both the laboratory control and the low-MCA treatments. Differences in macrofauna were driven by decreases in 3 Podocopa ostracod species, the bivalve Gemma gemma, and the polychaetes Exogone verugera and Prionospio heterobranchia relative to the laboratory control. Differences in the meiofaunal community are largely driven by nematodes. The benthic community test results were more sensitive than the single-species test results. Findings of this investigation indicate that CuNMs represent a source of risk to marine benthic communities comparable to that of dissolved Cu. Environ Toxicol Chem 2018;37:362-375. Published 2017 Wiley Periodicals Inc. on behalf of SETAC. This article is a US government work and, as such, is in the public domain in the United States of America.
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Affiliation(s)
- Kay T. Ho
- Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island
- Address correspondence to
| | - Lisa Portis
- Lifespan Ambulatory Care Center, East Greenwich, Rhode Island, USA
| | - Anthony A. Chariton
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Oceans and Atmosphere, Lucas Height, New South Wales, Australia
| | - Marguerite Pelletier
- Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island
| | - Mark Cantwell
- Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island
| | - David Katz
- Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island
| | - Michaela Cashman
- Department of Geosciences, University of Rhode Island, Kingston, Rhode Island, USA
| | - Ashley Parks
- Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island
| | | | | | - Warren Boothman
- Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island
| | - Todd Luxton
- National Exposure Research Laboratory (NERL), US Environmental Protection Agency, Cincinnati, Ohio
| | - Stuart L. Simpson
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Land and Water, Lucas Heights, New South Wales, Australia
| | - Sandra Fogg
- Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island
| | - Robert M. Burgess
- Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island
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27
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Burgess RM, Ho KT. Microplastics in the aquatic environment-Perspectives on the scope of the problem. Environ Toxicol Chem 2017; 36:2259-2265. [PMID: 28843056 PMCID: PMC6166645 DOI: 10.1002/etc.3867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 03/25/2017] [Accepted: 05/22/2017] [Indexed: 05/31/2023]
Affiliation(s)
- Robert M Burgess
- Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island
| | - Kay T Ho
- Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island
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28
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Katz DR, Cantwell MG, Sullivan JC, Perron MM, Burgess RM, Ho KT. Particle-bound metal transport after removal of a small dam in the Pawtuxet River, Rhode Island, USA. Integr Environ Assess Manag 2017; 13:675-685. [PMID: 27567128 PMCID: PMC6088376 DOI: 10.1002/ieam.1844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/26/2016] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
The Pawtuxet River in Rhode Island, USA, has a long history of industrial activity and pollutant discharges. Metal contamination of the river sediments is well documented and historically exceeded toxicity thresholds for a variety of organisms. The Pawtuxet River dam, a low-head dam at the mouth of the river, was removed in August 2011. The removal of the dam was part of an effort to restore the riverine ecosystem after centuries of anthropogenic impact. Sediment traps were deployed below the dam to assess changes in metal concentrations and fluxes (Ag, Cd, Cr, Cu, Ni, Pb, and Zn) from the river system into Pawtuxet Cove. Sediment traps were deployed for an average duration of 24 days each, and deployments continued for 15 months after the dam was removed. Metal concentrations in the trapped suspended particulate matter dropped after dam removal (e.g., 460 to 276 mg/kg for Zn) and remained below preremoval levels for most of the study. However, particle-bound metal fluxes increased immediately after dam removal (e.g., 1206 to 4248 g/day for Zn). Changes in flux rates during the study period indicated that river volumetric flow rates acted as the primary mechanism controlling the flux of metals into Pawtuxet Cove and ultimately upper Narragansett Bay. Even though suspended particulate matter metal concentrations initially dropped after removal of the dam, no discernable effect on the concentration or flux of the study metals exiting the river could be associated with removal of the Pawtuxet River dam. Integr Environ Assess Manag 2017;13:675-685. Published 2016. This article is a US Government work and is in the public domain in the USA.
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Affiliation(s)
- David R Katz
- US Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, Narragansett, Rhode Island
| | - Mark G Cantwell
- US Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, Narragansett, Rhode Island
| | - Julia C Sullivan
- Oak Ridge Institute for Science and Education, Narragansett, Rhode Island, USA
| | - Monique M Perron
- US Environmental Protection Agency, Office of Pesticide Programs, Washington, DC
| | - Robert M Burgess
- US Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, Narragansett, Rhode Island
| | - Kay T Ho
- US Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, Narragansett, Rhode Island
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Boyes WK, Thornton BLM, Al-Abed SR, Andersen CP, Bouchard DC, Burgess RM, Hubal EAC, Ho KT, Hughes MF, Kitchin K, Reichman JR, Rogers KR, Ross JA, Rygiewicz PT, Scheckel KG, Thai SF, Zepp RG, Zucker RM. A comprehensive framework for evaluating the environmental health and safety implications of engineered nanomaterials. Crit Rev Toxicol 2017; 47:767-810. [DOI: 10.1080/10408444.2017.1328400] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- William K. Boyes
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Brittany Lila M. Thornton
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Souhail R. Al-Abed
- National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, OH, USA
| | - Christian P. Andersen
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Corvallis, OR, USA
| | - Dermont C. Bouchard
- National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Athens, GA, USA
| | - Robert M. Burgess
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Narragansett, RI, USA
| | - Elaine A. Cohen Hubal
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Kay T. Ho
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Narragansett, RI, USA
| | - Michael F. Hughes
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Kirk Kitchin
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Jay R. Reichman
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Corvallis, OR, USA
| | - Kim R. Rogers
- National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Jeffrey A. Ross
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Paul T. Rygiewicz
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Corvallis, OR, USA
| | - Kirk G. Scheckel
- National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, OH, USA
| | - Sheau-Fung Thai
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Richard G. Zepp
- National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Athens, GA, USA
| | - Robert M. Zucker
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
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Xiao Y, Ho KT, Burgess RM, Cashman M. Aggregation, Sedimentation, Dissolution, and Bioavailability of Quantum Dots in Estuarine Systems. Environ Sci Technol 2017; 51:1357-1363. [PMID: 27951641 PMCID: PMC6116523 DOI: 10.1021/acs.est.6b04475] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
To understand their fate and transport in estuarine systems, the aggregation, sedimentation, and dissolution of CdSe quantum dots (QDs) in seawater were investigated. Hydrodynamic size increased from 40 to 60 nm to >1 mm within 1 h in seawater, and the aggregates were highly polydispersed. Their sedimentation rates in seawater were measured to be 4-10 mm/day. Humic acid (HA), further increased their size and polydispersity, and slowed sedimentation. Light increased their dissolution and release of dissolved Cd. The ZnS shell also slowed release of Cd ions. With sufficient light, HA increased the dissolution of QDs, while with low light, HA alone did not change their dissolution. The benthic zone in estuarine systems is the most probable long-term destination of QDs due to aggregation and sedimentation. The bioavailability of was evaluated using the mysid Americamysis bahia. The 7-day LC50s of particulate and dissolved QDs were 290 and 23 μg (total Cd)/L, respectively. For mysids, the acute toxicity appears to be from Cd ions; however, research on the effects of QDs should be conducted with other organisms where QDs may be lodged in critical tissues such as gills or filtering apparatus and Cd ions may be released and delivered directly to those tissues.
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Affiliation(s)
- Yao Xiao
- National Research Council at Atlantic Ecology Division, US Environmental Protection Agency, 27 Tarzwell Dr., Narragansett, RI 02882
| | - Kay T. Ho
- Atlantic Ecology Division, US Environmental Protection Agency, 27 Tarzwell Dr., Narragansett, RI 02882
| | - Robert M. Burgess
- Atlantic Ecology Division, US Environmental Protection Agency, 27 Tarzwell Dr., Narragansett, RI 02882
| | - Michaela Cashman
- University of Rhode Island, Department of Geosciences, Kingston, RI 02881
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Uribe AG, Ho KT, Agee B, McGwin G, Fessler BJ, Bastian HM, Reveille JD, Alarcón GS. Relationship between adherence to study and clinic visits in systemic lupus erythematosus patients: data from the LUMINA cohort. Lupus 2016; 13:561-8. [PMID: 15462484 DOI: 10.1191/0961203304lu1061oa] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The aim of this study was to examine the relationship between nonadherence with study visits and with regularly scheduled clinic visits after adjusting for other patient and disease characteristics. One hundred and forty-one LUMINA patients with appointment data in the institutions’ computerized systems (UAB and UTH) were studied. ‘No shows’ were assessed as the percentage of appointments not attended for either rheumatology, other clinics and LUMINA visits (from zero to 100%). Eighty-nine percent of the patients were women, 40% were Caucasians, 55% African-Americans and 5% Hispanics. ‘No shows’ to rheumatology were associated with non-Caucasian ethnicity, younger age, single marital status, lack of home ownership, ‘no shows’ to other clinics and to the LUMINA study, greater disease activity and to some disease manifestations (serositis, renal involvement, positive anti-dsDNA antibodies). In multivariable analyses, features predictive of rheumatology ‘no shows’ were lack of home ownership, ‘no shows’ to LUMINA study visits, renal involvement and serosal manifestations. Nonadherence with study visits and with regularly scheduled care at rheumatology clinics were associated. Other factors predictive of nonadherence to recommended care were lack of home ownership (a measurement of low socioeconomic status) and the presence of disease manifestations (i.e., renal or serosal involvement). These data should be considered when caring for patients with SLE.
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Affiliation(s)
- A G Uribe
- Department of Medicine, Division of Clinical Immunology and Rheumatology, The University of Alabama at Birmingham, Birmingham, Alabama, AL 35294, USA
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Parks AN, Chandler GT, Ho KT, Burgess RM, Ferguson PL. Environmental biodegradability of [¹⁴C] single-walled carbon nanotubes by Trametes versicolor and natural microbial cultures found in New Bedford Harbor sediment and aerated wastewater treatment plant sludge. Environ Toxicol Chem 2015; 34:247-251. [PMID: 25352477 DOI: 10.1002/etc.2791] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 09/01/2014] [Accepted: 09/27/2014] [Indexed: 06/04/2023]
Abstract
Little is known about environmental biodegradability or biotransformations of single-walled carbon nanotubes (SWNT). Because of their strong association with aquatic organic matter, detailed knowledge of the ultimate fate and persistence of SWNT requires investigation of possible biotransformations (i.e., biodegradation) in environmental media. In the present study, [(14)C]SWNT were utilized to track biodegradation over 6 mo by pure liquid culture of the fungus Trametes versicolor and mixed bacterial isolates from field-collected sediment or aerated wastewater treatment plant sludge. The mixed cultures were chosen as more environmentally relevant media where SWNT will likely be deposited under both aerobic and anaerobic conditions. Activity of [(14)C] was assessed in solid, aqueous, and (14)CO2 gaseous phases to determine amounts of intact SWNT, partially soluble SWNT degradation products, and mineralized SWNT, respectively, during the 6 mo of the experiment. Mass balances based on radiocarbon activity were approximately 100% over 6 mo, and no significant degradation of SWNT was observed. Approximately 99% of the [(14)C] activity remained in the solid phase, 0.8% in the aqueous phase, and less than 0.1% was mineralized to (14)CO2, regardless of culture type. These results suggest that SWNT are not readily biodegraded by pure fungal cultures or environmental microbial communities, and are likely persistent in environmental media.
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Affiliation(s)
- Ashley N Parks
- Nicholas School of the Environment, Duke University, Durham, North Carolina, USA; Center for the Environmental Implications of NanoTechnology, Duke University, Durham, North Carolina, USA; Office of Research and Development, National Health and Environmental Effects Research Laboratory-Atlantic Ecology Division, US Environmental Protection Agency, Narragansett, Rhode Island, USA
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33
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Wang H, Ho KT, Scheckel KG, Wu F, Cantwell MG, Katz DR, Horowitz DB, Boothman WS, Burgess RM. Toxicity, bioaccumulation, and biotransformation of silver nanoparticles in marine organisms. Environ Sci Technol 2014; 48:13711-13717. [PMID: 25369427 DOI: 10.1021/es502976y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The toxicity, bioaccumulation, and biotransformation of citrate and polyvinylpyrrolidone (PVP) coated silver nanoparticles (NPs) (AgNP-citrate and AgNP-PVP) in marine organisms via marine sediment exposure was investigated. Results from 7-d sediment toxicity tests indicate that AgNP-citrate and AgNP-PVP did not exhibit toxicity to the amphipod (Ampelisca abdita) and mysid (Americamysis bahia) at ≤75 mg/kg dry wt. A 28-d bioaccumulation study showed that Ag was significantly accumulated in the marine polychaete Nereis virens (N. virens) in the AgNP-citrate, AgNP-PVP and a conventional salt (AgNO3) treatments. Synchrotron X-ray absorption spectroscopy (XAS) results showed the distribution of Ag species in marine sediments amended with AgNP-citrate, AgNP-PVP, and AgNO3 was AgCl (50–65%) > Ag2S (32–42%) > Ag metal (Ag0) (3–11%). In N virens, AgCl (25–59%) and Ag2S (10–31%) generally decreased and, Ag metal (32–44%) increased, relative to the sediments. The patterns of speciation in the worm were different depending upon the coating of the AgNP and both types of AgNPs were different than the AgNO3 salt. These results show that the AgNP surface capping agents influenced Ag uptake, biotransformation, and/or excretion. To our knowledge, this is the first demonstration of the bioaccumulation and speciation of AgNPs in a marine organism (N. virens).
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Affiliation(s)
- Huanhua Wang
- U.S. Environmental Protection Agency, ORD/NHEERL/Atlantic Ecology Division, Narragansett, Rhode Island 02882, United States
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Wang H, Burgess RM, Cantwell MG, Portis LM, Perron MM, Wu F, Ho KT. Stability and aggregation of silver and titanium dioxide nanoparticles in seawater: role of salinity and dissolved organic carbon. Environ Toxicol Chem 2014; 33:1023-1029. [PMID: 24464618 DOI: 10.1002/etc.2529] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 01/05/2014] [Accepted: 01/18/2014] [Indexed: 06/03/2023]
Abstract
The behavior and fate of nanoparticles (NPs) in the marine environment are largely unknown and potentially have important environmental and human health implications. The aggregation and fate of NPs in the marine environment are greatly influenced by their interactions with seawater and dissolved organic carbon (DOC). In the present study, the stability and aggregation of 30-nm-diameter silver nanoparticles (AgNPs) capped with citrate and polyvinylpyrrolidone (PVP; AgNP-citrate and AgNP-PVP) and 21-nm-diameter titanium dioxide (TiO(2)) NPs as affected by seawater salinity and DOC were investigated by measuring hydrodynamic diameters and zeta potentials. The added DOC (in humic acid form) stabilized the 3 types of NPs when the seawater salinities were ≤5 parts per thousand (ppt), but the stabilizing effect of DOC was reduced by a higher salinity (e.g., 30 ppt). In addition, AgNP-PVP was more stable than AgNP-citrate in seawater, indicating that surface capping agents and stabilization mechanisms govern the stability and aggregation of NPs. Statistical analysis showed that salinity is the most dominant influence on the stability and aggregation of AgNPs and TiO(2) NPs, followed by DOC. These findings expand our knowledge on the behavior of AgNPs and TiO2 NPs in seawater and indicate that the fate of these NPs will be primarily to aggregate in the water column, precipitate, and accumulate in sediments following release into the marine environment.
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Affiliation(s)
- Huanhua Wang
- National Research Council, US Environmental Protection Agency, Office of Research and Development, Narragansett, Rhode Island; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China
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Chariton AA, Ho KT, Proestou D, Bik H, Simpson SL, Portis LM, Cantwell MG, Baguley JG, Burgess RM, Pelletier MM, Perron M, Gunsch C, Matthews RA. A molecular-based approach for examining responses of eukaryotes in microcosms to contaminant-spiked estuarine sediments. Environ Toxicol Chem 2014; 33:359-369. [PMID: 24399368 DOI: 10.1002/etc.2450] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Revised: 04/09/2013] [Accepted: 10/07/2013] [Indexed: 06/03/2023]
Abstract
Ecotoxicological information for most contaminants is limited to a small number of taxa, and these are generally restricted to comparatively hardy organisms that are readily extractable from test media and easily identifiable. Advances in DNA sequencing can now provide a comprehensive view of benthic invertebrate diversity. The authors applied 454 pyrosequencing to examine the responses of benthic communities in microcosms exposed to sediments with elevated concentrations of triclosan, the endpoint being eukaryl communities that have successfully vertically migrated through the manipulated sediments. The biological communities associated with the 3 treatments (control triclosan, low triclosan [14 mg/kg], and high triclosan [180 mg/kg]) clustered into 3 groups: control/low (n = 6 controls and 4 low), moderate (n = 2 low), and high (n = 5 high). One sample was discarded as an outlier. The most pronounced change as a response to triclosan was the loss of number of metazoan operational taxonomic units (OTUs), indicative of the control/low and moderate groups, with this being most evident in the range of taxa associated with the classes Chromadorea and Bivalvia and the phylum Kinorhyncha. The authors also describe a range of other taxa that aided discrimination between the groups; compare findings with traditionally obtained meio- and macrofaunal communities obtained from the same experiment; and illustrate some of the advantages and limitations associated with both the molecular and traditional approaches. The described approach illustrates the capacity for amplicon sequencing to provide ecologically relevant information that can be used to strengthen an understanding of how sedimentary communities respond to a range of environmental stressors.
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Parks AN, Chandler GT, Portis LM, Sullivan JC, Perron MM, Cantwell MG, Burgess RM, Ho KT, Ferguson PL. Effects of single-walled carbon nanotubes on the bioavailability of PCBs in field-contaminated sediments. Nanotoxicology 2013; 8 Suppl 1:111-7. [DOI: 10.3109/17435390.2013.858794] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Ashley N. Parks
- Nicholas School of the Environment, Duke University, Durham, NC, USA,
| | - G. Thomas Chandler
- Arnold School of Public Health, University of South Carolina, Columbia, SC, USA,
| | - Lisa M. Portis
- U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory – Atlantic Ecology Division, Narragansett, RI, USA,
| | - Julia C. Sullivan
- U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory – Atlantic Ecology Division, Narragansett, RI, USA,
| | - Monique M. Perron
- U.S. Environmental Protection Agency, Office of Pesticides Program – Health Effects Division, Arlington, VA, USA,
| | - Mark G. Cantwell
- U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory – Atlantic Ecology Division, Narragansett, RI, USA,
| | - Robert M. Burgess
- U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory – Atlantic Ecology Division, Narragansett, RI, USA,
| | - Kay T. Ho
- U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory – Atlantic Ecology Division, Narragansett, RI, USA,
| | - P. Lee Ferguson
- Nicholas School of the Environment, Duke University, Durham, NC, USA,
- Department of Civil and Environmental Engineering, Duke University, Durham, NC, USA, and
- Center for Environmental Implications of NanoTechnologies, Duke University, Durham, NC, USA
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Ho KT, Burgess RM. What's causing toxicity in sediments? Results of 20 years of toxicity identification and evaluations. Environ Toxicol Chem 2013; 32:2424-2432. [PMID: 23966219 DOI: 10.1002/etc.2359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 04/10/2013] [Accepted: 08/13/2013] [Indexed: 06/02/2023]
Abstract
Sediment toxicity identification and evaluation (TIE) methods have been used for 20 yr to identify the causes of toxicity in sediments around the world. In the present study, the authors summarize and categorize results of 36 peer-reviewed TIE studies (67 sediments) into nonionic organic, cationic, ammonia, and "other" toxicant groups. Results are then further categorized according to whether the study was performed in freshwater or marine sediments and whether the study was performed using whole-sediment or interstitial-water TIE methods. When all studies were grouped, nonionic organic toxicants, either singly or in combination with other toxicants, were implicated in 70% of all studies. When studies were divided into interstitial-water TIE methodology compared with whole-sediment TIE methodology, results indicated that studies performed using interstitial-water TIE methods reported nonionic organic toxicity slightly more often than toxicity from cationic metals (67% compared with 49%). In contrast, studies using whole-sediment TIE methods report nonionic organic chemical toxicity, either singly or in combination with another toxicant, in 90% of all sediments tested. Cationic metals play a much smaller role in whole-sediment TIE studies-fewer than 20% of all sediments had a metals signal. The discrepancy between the 2 methods can be attributed to exposure differences. Contrary to earlier findings, ammonia generally plays only a minor role in sediment toxicity.
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Affiliation(s)
- Kay T Ho
- National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, Office of Research and Development, US Environmental Protection Agency, Narragansett, Rhode Island, USA
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Burgess RM, Ho KT, Brack W, Lamoree M. Effects-directed analysis (EDA) and toxicity identification evaluation (TIE): Complementary but different approaches for diagnosing causes of environmental toxicity. Environ Toxicol Chem 2013; 32:1935-45. [PMID: 23893495 DOI: 10.1002/etc.2299] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Currently, 2 approaches are available for performing environmental diagnostics on samples like municipal and industrial effluents, interstitial waters, and whole sediments to identify anthropogenic contaminants causing toxicological effects. One approach is toxicity identification evaluation (TIE), which was developed primarily in North America to determine active toxicants to whole-organism endpoints. The second approach is effects-directed analysis (EDA), which has origins in both Europe and North America. Unlike TIE, EDA uses primarily in vitro endpoints with an emphasis on organic contaminants as the cause of observed toxicity. The 2 approaches have fundamental differences that make them distinct techniques. In EDA, the sophisticated and elegant fractionation and chemical analyses performed to identify the causes of toxicity with a high degree of specificity often compromise contaminant bioavailability. In contrast, in TIE, toxicant bioavailability is maintained and is considered critical to accurately identifying the causes of environmental toxicity. However, maintaining contaminant bioavailability comes with the cost of limiting, at least until recently, the use of the types of sophisticated fractionation and elegant chemical analyses that have resulted in the high specificity of toxicant diagnosis performed in EDA. The present study provides an overview of each approach and highlights areas where the 2 approaches can complement one another and lead to the improvement of both.
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Affiliation(s)
- Robert M Burgess
- Atlantic Ecology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Narragansett, Rhode Island, USA.
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Parks AN, Portis LM, Schierz PA, Washburn KM, Perron MM, Burgess RM, Ho KT, Chandler GT, Ferguson PL. Bioaccumulation and toxicity of single-walled carbon nanotubes to benthic organisms at the base of the marine food chain. Environ Toxicol Chem 2013; 32:1270-1277. [PMID: 23404747 DOI: 10.1002/etc.2174] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 10/04/2012] [Accepted: 01/07/2013] [Indexed: 06/01/2023]
Abstract
As the use of single-walled carbon nanotubes (SWNTs) increases over time, so does the potential for environmental release. This research aimed to determine the toxicity, bioavailability, and bioaccumulation of SWNTs in marine benthic organisms at the base of the food chain. The toxicity of SWNTs was tested in a whole sediment exposure with the amphipod Ampelisca abdita and the mysid Americamysis bahia. In addition, SWNTs were amended to sediment and/or food matrices to determine their bioavailability and bioaccumulation through these routes in A. abdita, A. bahia, and the estuarine amphipod Leptocheirus plumulosus. No significant mortality to any species via sediment or food matrices was observed at concentrations up to 100 ppm. A novel near-infrared fluorescence spectroscopic method was utilized to measure and characterize the body burdens of pristine SWNTs in nondepurated and depurated organisms. We did not detect SWNTs in depurated organisms but quantified them in nondepurated A. abdita fed SWNT-amended algae. After a 28-d exposure to [(14) C]SWNT-amended sediment (100 µg/g) and algae (100 µg/g), [(14) C]SWNT was detected in depurated and nondepurated L. plumulosus amphipods at 0.50 µg/g and 5.38 µg/g, respectively. The results indicate that SWNTs are bioaccessible to marine benthic organisms but do not appear to accumulate or cause toxicity.
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Affiliation(s)
- Ashley N Parks
- Nicholas School of the Environment, Duke University, Durham, North Carolina, USA
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Biales AD, Kostich M, Burgess RM, Ho KT, Bencic DC, Flick RL, Portis LM, Pelletier MC, Perron MM, Reiss M. Linkage of genomic biomarkers to whole organism end points in a Toxicity Identification Evaluation (TIE). Environ Sci Technol 2013; 47:1306-1312. [PMID: 23305514 DOI: 10.1021/es304274a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Aquatic organisms are exposed to many toxic chemicals and interpreting the cause and effect relationships between occurrence and impairment is difficult. Toxicity Identification Evaluation (TIE) provides a systematic approach for identifying responsible toxicants. TIE relies on relatively uninformative and potentially insensitive toxicological end points. Gene expression analysis may provide needed sensitivity and specificity aiding in the identification of primary toxicants. The current work aims to determine the added benefit of integrating gene expression end points into the TIE process. A cDNA library and a custom microarray were constructed for the marine amphipod Ampelisca abdita. Phase 1 TIEs were conducted using 10% and 40% dilutions of acutely toxic sediment. Gene expression was monitored in survivors and controls. An expression-based classifier was developed and evaluated against control organisms, organisms exposed to low or medium toxicity diluted sediment, and chemically selective manipulations of highly toxic sediment. The expression-based classifier correctly identified organisms exposed to toxic sediment even when little mortality was observed, suggesting enhanced sensitivity of the TIE process. The ability of the expression-based end point to correctly identify toxic sediment was lost concomitantly with acute toxicity when organic contaminants were removed. Taken together, this suggests that gene expression enhances the performance of the TIE process.
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Affiliation(s)
- Adam D Biales
- US EPA, National Exposure Research Laboratory AWBERC, MD 592 26 W. Martin Luther King Drive Cincinnati, Ohio 45268, United States.
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Ho KT, Chariton AA, Portis LM, Proestou D, Cantwell MG, Baguley JG, Burgess RM, Simpson S, Pelletier MC, Perron MM, Gunsch CK, Bik HM, Katz D, Kamikawa A. Use of a novel sediment exposure to determine the effects of triclosan on estuarine benthic communities. Environ Toxicol Chem 2013; 32:384-392. [PMID: 23161706 DOI: 10.1002/etc.2067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 07/19/2012] [Accepted: 09/12/2012] [Indexed: 06/01/2023]
Abstract
Triclosan (5-chloro-2-[2,4-dichlorophenoxy]phenol) is a relatively new, commonly used antimicrobial compound found in many personal care products. Triclosan is toxic to marine organisms at the micrograms per liter level, can photodegrade to a dioxin, can accumulate in humans, and has been found to be stable in marine sediments for over 30 years. To determine the effects of triclosan on marine benthic communities, intact sediment cores were brought into the laboratory and held under flowing seawater conditions. A 2-cm layer of triclosan-spiked sediment was applied to the surface, and after a two-week exposure the meio- and macrofaunal communities were assessed for differences in composition relative to nonspiked cores. A high triclosan treatment (180 mg/kg dry wt) affected both the meio- and the macrobenthic communities. There were no discernible differences with a low-triclosan treatment (14 mg/kg dry wt). This exposure method is effective for testing the benthic community response to sediment contaminants, but improvements should be made with regard to the amount and method of applying the overlying sediment to prevent smothering of fragile benthic organisms.
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Affiliation(s)
- Kay T Ho
- Atlantic Ecology Division, U.S. Environmental Protection Agency, Narragansett, Rhode Island, USA.
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Ho KT, Pelletier MC, Campbell DE, Burgess RM, Johnson RL, Rocha KJ. Diagnosis of potential stressors adversely affecting benthic communities in New Bedford Harbor, MA (USA). Integr Environ Assess Manag 2012; 8:685-702. [PMID: 22447411 DOI: 10.1002/ieam.1303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Revised: 10/17/2011] [Accepted: 02/27/2012] [Indexed: 05/31/2023]
Abstract
Diagnosing the causes of impaired ecosystems in the marine environment is critical for effective management action. When ecological impairment is based on toxicological or biological criteria (i.e., degraded benthic community composition or toxicity test results), managers are faced with the additional problem of diagnosing the cause of impairment before plans can be initiated to reduce the pollutant loading. We evaluated a number of diagnostic tools to determine their ability to identify pollutants in New Bedford Harbor (NBH), Massachusetts (USA), using a modified version of the US Environmental Protection Agency's (USEPA) stressor identification (SI) guidance. In this study, we linked chemical sources and toxic chemicals in the sediment with spatial concentration studies; we also linked toxic chemicals in the sediment with toxicity test results using toxicity identification and evaluation (TIE) studies. We used geographical information systems (GIS) maps to determine sources and to aid in determining spatially integrated inorganic nitrogen (SIIN). The SIIN values of reference and test estuaries were quantified and compared. Using this approach, we determined that toxic chemicals continue to be active stressors in NBH and that a moderate nutrient stress exists, but we were unable to link the nutrient stressor with a source. Also excess sedimentation was evaluated, but it does not appear to be an active stressor in this harbor. The research included an evaluation of the effectiveness of tools under development that may be used to evaluate stressors in water bodies. We found that the following tools were useful in diagnosing active stressors: toxicity tests, toxicity identification and evaluation (TIE) methods, comparison of grain size-normalized total organic carbon (TOC) ratios with reference sites, and comparison of SIIN with reference sites. This approach allowed us to successfully evaluate stressors in NBH retrospectively; however, a limitation in using retrospective data sets is that the approach may underestimate current or newly emerging stressors.
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Affiliation(s)
- Kay T Ho
- Atlantic Ecology Division, National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency, 27 Tarzwell Avenue, Narragansett, Rhode Island 02882, USA.
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Perron MM, Ho KT, Cantwell MG, Burgess RM, Pelletier MC. Effects of triclosan on marine benthic and epibenthic organisms. Environ Toxicol Chem 2012; 31:1861-6. [PMID: 22605471 DOI: 10.1002/etc.1884] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 03/08/2012] [Accepted: 04/04/2012] [Indexed: 05/02/2023]
Abstract
Triclosan is an antimicrobial compound that has been widely used in consumer products such as toothpaste, deodorant, and shampoo. Because of its widespread use, triclosan has been detected in various environmental media, including wastewater, sewage sludge, surface waters, and sediments. Triclosan is acutely toxic to numerous aquatic organisms, but very few studies have been performed on estuarine and marine benthic organisms. For whole sediment toxicity tests, the sediment-dwelling estuarine amphipod, Ampelisca abdita, and the epibenthic mysid shrimp, Americamysis bahia, are commonly used organisms. In the present study, median lethal concentration values (LC50) were obtained for both of these organisms using water-only and whole sediment exposures. Acute 96-h water-only toxicity tests resulted in LC50 values of 73.4 and 74.3 µg/L for the amphipod and mysid, respectively. For the 7-d whole sediment toxicity test, LC50 values were 303 and 257 mg/kg (dry wt) for the amphipod and mysid, respectively. Using equilibrium partitioning theory, these whole sediment values are equivalent to interstitial water LC50 values of 230 and 190 µg/L for the amphipod and mysid, respectively, which are within a threefold difference of the observed 96-h LC50 water-only values. Triclosan was found to accumulate in polychaete tissue in a 28-d bioaccumulation study with a biota-sediment accumulation factor of 0.23 kg organic carbon/kg lipid. These data provide some of the first toxicity data for triclosan with marine benthic and epibenthic species while also indicating a need to better understand the effects of other forms of sediment carbon, triclosan ionization, and organism metabolism of triclosan on the chemical's behavior and toxicity in the aquatic environment.
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Affiliation(s)
- Monique M Perron
- Brown University, School of Engineering, Providence, Rhode Island, USA.
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Burgess RM, Konovets IM, Kipnis LS, Lyashenko AV, Grintsov VA, Petrov AN, Terletskaya AV, Milyukin MV, Povolotskii MI, Demchenko VY, Bogoslovskaya TA, Topkin YV, Vorobyova TV, Portis LM, Ho KT. Distribution, magnitude and characterization of the toxicity of Ukrainian estuarine sediments. Mar Pollut Bull 2011; 62:2442-2462. [PMID: 21944545 DOI: 10.1016/j.marpolbul.2011.08.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 08/15/2011] [Accepted: 08/19/2011] [Indexed: 05/31/2023]
Abstract
During the Soviet era, Ukraine was an important industrial and agricultural region of the Soviet Union. This industrial and agricultural activity resulted in contamination of Ukraine's estuaries with legacy anthropogenic pollutants. Investigations on the toxicological effects of this estuarine contamination have been limited. For this research, we measured the toxicity of contaminated sediments from four Ukrainian estuaries to several aquatic organisms over 3 years. Sediment chemical analyses and whole sediment toxicity identification evaluations (TIEs) were also performed to determine the classes of contaminants contributing to toxicity. Toxic sediments were observed in several of the Ukrainian estuaries and chemical analyses of the sediments demonstrated anthropogenic contaminants were widely distributed. Contaminants were also detected in macrobenthic organisms collected from the sediments. Several lines of evidence, including TIEs, indicated hydrophobic organic chemicals (HOCs) were contributing substantially to observed toxicity. This information can guide environmental managers to prioritize portions of the estuaries requiring remediation.
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Affiliation(s)
- Robert M Burgess
- US Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory-Atlantic Ecology Division, 27 Tarzwell Drive, Narragansett, RI 02882, USA.
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Burgess RM, Hawthorne SB, Perron MM, Cantwell MG, Grabanski CB, Miller DJ, Ho KT, Pelletier MA. Assessment of supercritical fluid extraction use in whole sediment toxicity identification evaluations. Environ Toxicol Chem 2011; 30:819-827. [PMID: 21194177 DOI: 10.1002/etc.457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Revised: 09/29/2010] [Accepted: 11/08/2010] [Indexed: 05/30/2023]
Abstract
Supercritical fluid extraction (SFE) with pure CO(2) was assessed as a confirmatory tool in phase III of whole sediment toxicity identification evaluations (TIEs). The SFE procedure was assessed on two reference sediments and three contaminated sediments by using a combination of toxicological and chemical measurements to quantify effectiveness. Sediment toxicity pre- and post-SFE treatment was quantified with a marine amphipod (Ampelisca abdita) and mysid (Americamysis bahia), and nonionic organic contaminants (NOCs) polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) were measured in sediments, overlying waters, and interstitial waters. In general, use of SFE with the reference sediments was successful, with survival averaging 91% in post-SFE treatments. Substantial toxicity reductions and contaminant removal from sediments and water samples generated from extracted sediments of up to 99% in two of the contaminated sediments demonstrated SFE effectiveness. Furthermore, toxicological responses for these SFE-treated sediments showed comparable results to those from the same sediments treated with the powdered coconut charcoal addition manipulation. These data demonstrated the utility of SFE in phase III of a whole sediment TIE. Conversely, in one of the contaminated sediments, the SFE treatments had no effect on sediment toxicity, whereas sediment concentrations of PCBs and PAHs were reduced. We propose that, for some sediments, the SFE treatment may result in the release of otherwise nonbioavailable cationic metals that subsequently cause toxicity to test organisms. Overall, SFE treatment was found to be effective for reducing the toxicity and concentrations of NOCs in some contaminated sediments. However, these studies suggest that SFE treatment may enhance toxicity with some sediments, indicating that care must be taken when applying SFE and interpreting the results.
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Affiliation(s)
- Robert M Burgess
- U.S. Environmental Protection Agency, Narragansett, Rhode Island.
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Perron MM, Burgess RM, Ho KT, Pelletier MC, Friedman CL, Cantwell MG, Shine JP. Limitations of reverse polyethylene samplers (RePES) for evaluating toxicity of field contaminated sediments. Chemosphere 2011; 83:247-254. [PMID: 21239040 DOI: 10.1016/j.chemosphere.2010.12.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Revised: 12/20/2010] [Accepted: 12/21/2010] [Indexed: 05/30/2023]
Abstract
Passive samplers are used to measure dissolved nonionic organic contaminants (NOCs) in environmental media. More recently, reverse polyethylene samplers (RePES) have been used with spiked sediments to recreate interstitial water exposure concentrations and observed toxicity. In the present study, RePES were used with field contaminated sediments. The RePES was not capable of recreating the pattern of toxicity with the amphipod and mysid observed with intact field sediments. Decreased survival in the RePES exposures as compared to the whole sediment exposures was most likely caused by an overexposure to NOCs due to a lack of surrogate black carbon in the RePES system. As an alternative, aqueous phase studies were performed in which polyethylene was allowed to equilibrate with slurries of intact sediments for 3 weeks. Three weeks was found to be an insufficient amount of time for the polyethylene to equilibrate with the sediment. An additional study demonstrated 3 months was sufficient for lower contaminant concentrations, but might not be an adequate amount of time for more highly contaminated sediments. The aqueous phase transfer approach may be useful if equilibration is sufficiently long, although this length of time may be impractical for use in certain applications, such as toxicity identification evaluations (TIEs).
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Affiliation(s)
- Monique M Perron
- Harvard School of Public Health, Department of Environmental Health, 677 Huntington Ave. Boston, MA 02115, USA.
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Pelletier MC, Campbell DE, Ho KT, Burgess RM, Audette CT, Detenbeck NE. Can sediment total organic carbon and grain size be used to diagnose organic enrichment in estuaries? Environ Toxicol Chem 2011; 30:538-547. [PMID: 21298700 DOI: 10.1002/etc.414] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2010] [Revised: 06/22/2010] [Accepted: 09/14/2010] [Indexed: 05/30/2023]
Abstract
Eutrophication (i.e., nutrient enrichment, organic enrichment, and oxygen depletion) is one of the most common sources of impairment in Clean Water Act 303(d)-listed waters in the United States. Although eutrophication can eventually cause adverse effects to the benthos, it may be difficult to diagnose. Sediment organic carbon (OC) content has been used as an indicator of enrichment in sediments, but the amount of surface area available for carbon adsorption must be considered. We investigated the utility of the relationship between OC and sediment grain size as an indicator of eutrophication. Data from the U.S. Environmental Protection Agency's Environmental Monitoring and Assessment Program was used to test this relationship. However, anthropogenic contaminants are also capable of causing adverse effects to the benthos and often co-occur with elevated levels of OC. Contaminant analysis and toxicity tests were not consistently related to enrichment status as defined by relationship between total OC and grain size. Although variability in response occurred, reflecting the variance in the water column factors (dissolved oxygen, chlorophyll a, and nutrients) and limited sample sizes, the data supported the hypothesis that sites designated as enriched were eutrophied. Dissolved oxygen levels were reduced at enriched sites, whereas chlorophyll a and nutrients were higher at enriched sites. This suggests that the relationship of OC to grain size can be used as a screening tool to diagnose eutrophication.
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Affiliation(s)
- Marguerite C Pelletier
- U.S. Environmental Protection Agency, National Health and Environmental Effects Laboratory, Narragansett, Rhode Island, USA.
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Burgess RM, Ho KT, Biales AD, Brack W. Recent Developments in Whole Sediment Toxicity Identification Evaluations: Innovations in Manipulations and Endpoints. The Handbook of Environmental Chemistry 2011. [DOI: 10.1007/978-3-642-18384-3_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Perron MM, Burgess RM, Ho KT, Pelletier MC, Cantwell MG, Shine JP. Bioavailability assessment of a contaminated field sediment from Patrick Bayou, Texas, USA: toxicity identification evaluation and equilibrium partitioning. Environ Toxicol Chem 2010; 29:742-750. [PMID: 20821502 DOI: 10.1002/etc.62] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Contaminated sediments are commonly found in urbanized harbors. At sufficiently high contaminant levels, sediments can cause toxicity to aquatic organisms and impair benthic communities. As a result, remediation is necessary and diagnosing the cause of sediment toxicity becomes imperative. In the present study, six sediments from a highly industrialized area in Patrick Bayou (TX, USA) were subjected to initial toxicity testing with the mysid, Americamysis bahia, and the amphipod, Ampelisca abdita. All sediments were toxic to the amphipods, while sites PB4A, PB6A, and PB9 were the only sites toxic to mysids. Due to its toxicity to both test organisms, site PB6A was chosen for a marine whole sediment phase I toxicity identification evaluation (TIE). Results of the TIE found toxicity to amphipods was primarily due to nonionic organic contaminants (NOCs), rather than cationic metals or ammonia. Causes of mysid toxicity in the TIE were less clear. An assessment of metal bioavailability using equilibrium partitioning (EqP) approaches supported the results of the TIE that cationic metals were not responsible for observed toxicity in PB6A for either organism. Toxic units (TU) calculated on measured concentrations of NOCs in the sediment yielded a total TU of 1.25, indicating these contaminants are contributing to the observed sediment toxicity. Using a combination of these TIE and EqP assessment tools, this investigation was capable of identifying NOCs as the likely class of contaminants causing acute toxicity to amphipods exposed to Patrick Bayou sediment. The cause of mysid toxicity was not definitively determined, but unmeasured NOCs are suspected.
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Affiliation(s)
- Monique M Perron
- Harvard School of Public Health, Department of Environmental Health, Boston, Massachusetts 02115, USA.
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Ho KT, Gielazyn ML, Pelletier MC, Burgess RM, Cantwell MC, Perron MM, Serbst JR, Johnson RL. Do toxicity identification and evaluation laboratory-based methods reflect causes of field impairment? Environ Sci Technol 2009; 43:6857-6863. [PMID: 19764260 DOI: 10.1021/es900215x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Sediment toxicity identification and evaluation (TIE) methods are relatively simple laboratory methods designed to identify specific toxicants or classes of toxicants in sediments; however, the question of whether the same toxicant identified in the laboratory is causing effects in the field remains unanswered. The objective of our study was to determine if laboratory TIE methods accurately reflect field effects. A TIE performed on sediments collected from the Elizabeth River (ER) in Virginia identified polycyclic aromatic hydrocarbons (PAHs) as the major toxicants. Several lines of evidence indicated PAHs were the major toxic agents in the field, including elevated PAH concentrations in ER sediments, comet assay results from in situ caged Merceneria merceneria, and chemical analyses of exposed M. merceneria, which indicated high PAH concentrations in the bivalve tissue. Our final evidence was the response from test organisms exposed to ER sediment extracts and then ultraviolet (UV) radiation. UV radiation caused a toxic diagnostic response unique to PAHs. The aggregation of these various lines of evidence supports the conclusion that PAHs were the likely cause of effects in laboratory- and field-exposed organisms, and that laboratory-based TIE findings reflect causes of field impairment
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Affiliation(s)
- Kay T Ho
- Atlantic Ecology Division, U.S. Environmental Protection Agency, Narragansett, Rhode Island 02882, USA.
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