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Barbieri PA, Lupepsa L, Paupitz BR, de Andrade CO, Gigliolli AAS, de Brito Portela-Castro AL, Ribeiro RP, Fernandes CA, Borin-Carvalho LA. Erythrocyte alterations in specimens of Danio rerio caused by exposure to metformin. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 106:104373. [PMID: 38244880 DOI: 10.1016/j.etap.2024.104373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/16/2024] [Indexed: 01/22/2024]
Abstract
The antidiabetic drug metformin is widely prescribed around the world. However, its permanence in different environmental concentrations has been associated with adverse toxicological effects in organisms that do not target its therapeutic action. In the aquatic environment, fish such as the Zebrafish (Danio rerio) have been considered potential bioindicators of environmental impacts and used as experimental models in toxicological studies due to the sensitivity of these species to different types of contaminants, including pharmaceuticals. Thus, this study aimed to analyze metformin's cytotoxic effects on Danio rerio erythrocytes. The animals were submitted to different concentrations of the drug (50 µg/L, 100 µg/L, 150 µg/L, and 10000 µg/L) for 365 days and subsequently observed employing light microscopy and scanning electron microscopy (SEM) to evaluate the alterations that occurred. Exposure of animals to metformin led to significant erythrocyte cell abnormalities across all tested concentrations, with a particularly pronounced effect at the higher concentration previously defined as the NOEC (No Observed Effect Concentration). Remarkable abnormalities included cytoplasmic vacuoles, echinocytes, and vesicle-like cytoplasmic fragments. These findings suggest that metformin, even at concentrations similar to those found in nature and at the NOEC level, exhibits cytotoxic potential in D. rerio, raising concerns about its potential health impacts.
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Affiliation(s)
| | - Luara Lupepsa
- Biological Sciences Postgraduate Program, State University of Maringá, Brazil
| | | | | | | | - Ana Luiza de Brito Portela-Castro
- Department of Biotechnology, Genetics and Cellular Biology, State University of Maringá, Brazil; Research Center in Limnology, Ichthyology and Aquaculture (Nupélia), State University of Maringá, Brazil
| | | | - Carlos Alexandre Fernandes
- Department of Biotechnology, Genetics and Cellular Biology, State University of Maringá, Brazil; Research Center in Limnology, Ichthyology and Aquaculture (Nupélia), State University of Maringá, Brazil
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2
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Vuckovic D, MacDonald JA, Lin D, Mendez M, Miller E, Mitch WA. Pharmaceuticals, pesticides, and ultraviolet filters in wastewater discharges to San Francisco Bay as drivers of ecotoxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122432. [PMID: 37611792 DOI: 10.1016/j.envpol.2023.122432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 07/18/2023] [Accepted: 08/20/2023] [Indexed: 08/25/2023]
Abstract
Research in the United States evaluating ecotoxic risk to receiving waters posed by contaminants occurring in wastewater discharges typically has focused on measurements of pharmaceuticals and personal care products (PPCPs), with limited evaluations of UV filters and phenylpyrazole and neonicotinoid pesticides. In this study, concentrations of 5 representative pharmaceuticals, 11 pesticides or pesticide degradation products, and 5 ultraviolet filters were measured in 24 h composite samples of six wastewater discharges representing ∼70% of the total wastewater discharged to San Francisco Bay during the summer and fall of 2021. No significant difference was observed between concentrations measured on weekdays vs. weekends. A hydrodynamic model of San Francisco Bay was used to estimate annual average dilution factors associated with different subembayments. With and without considering dilution effects, Risk Quotients were calculated using the 90th percentile of measured concentrations in wastewater effluents and threshold concentrations associated with ecotoxicity. Risk Quotients were highest for the neonicotinoid pesticide, imidacloprid, and exceeded ecotoxicity thresholds in the lower South Bay by a factor of 2.4, even when considering dilution. Compared to commonly measured pharmaceuticals, Risk Quotients for imidacloprid were higher than those for carbamazepine, trimethoprim and diclofenac, and comparable to those for propranolol and metoprolol. Risk Quotients for the pesticide, fipronil, and the UV filter, oxybenzone, were higher than for carbamazepine. The results highlight the need to incorporate pesticides and UV filters with high Risk Quotients into studies in the United States evaluating ecotoxic risk associated with contaminants in municipal wastewater discharges.
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Affiliation(s)
- Djordje Vuckovic
- Department of Civil and Environmental Engineering, Stanford University, 473 Via Ortega, Stanford, CA, 94305, United States
| | - Jessica A MacDonald
- Department of Civil and Environmental Engineering, Stanford University, 473 Via Ortega, Stanford, CA, 94305, United States
| | - Diana Lin
- San Francisco Estuary Institute, 4911 Central Ave., Richmond, CA, 94804, United States
| | - Miguel Mendez
- San Francisco Estuary Institute, 4911 Central Ave., Richmond, CA, 94804, United States
| | - Ezra Miller
- San Francisco Estuary Institute, 4911 Central Ave., Richmond, CA, 94804, United States
| | - William A Mitch
- Department of Civil and Environmental Engineering, Stanford University, 473 Via Ortega, Stanford, CA, 94305, United States.
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3
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Tominaga FK, Boiani NF, Silva TT, Garcia VSG, Borrely SI. Acute and chronic ecotoxicological effects of pharmaceuticals and their mixtures in Daphnia similis. CHEMOSPHERE 2022; 309:136671. [PMID: 36209851 DOI: 10.1016/j.chemosphere.2022.136671] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 09/18/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Pharmaceuticals have increasingly received attention from the scientific community due to their growing intake, improved detection and potential ecological risks. Several pharmaceuticals, including antidepressants, anti-inflammatory and antidiabetic compounds and antibiotics, have been described as contaminants in different water matrices. In this context, the aim of the present study was to assess the acute and chronic effects of four classes of pharmaceuticals (acetylsalicylic acid, fluoxetine, metformin and ciprofloxacin) individually and in binary and quartenary mixture. Furthermore, the toxicity of binary mixtures containing the antidepressant fluoxetine was also evaluated. The results of the single acute and chronic toxicity assays indicate lower acetylsalicylic acid and higher fluoxetine toxicity towards Daphnia similis. Regarding the evaluated mixture toxicity, the nature of potential toxicological interactions was predicted by applying mathematical concentration addition and independent action models. The findings revealed both antagonistic and synergistic features, depending on the applied amounts and doses. Finally, the chronic assays performed with the quaternary mixture indicated the presence of a hormetic effect at low concentrations. In sum, the present study demonstrated that the effects of individual pharmaceuticals can underestimate the risk level of these contaminants in the environment.
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Affiliation(s)
- Flávio Kiyoshi Tominaga
- Instituto de Pesquisas Energéticas e Nucleares, Radiation Technology Center - IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, São Paulo, CEP 05508-000, Brazil.
| | - Nathalia Fonseca Boiani
- Instituto de Pesquisas Energéticas e Nucleares, Radiation Technology Center - IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, São Paulo, CEP 05508-000, Brazil
| | - Thalita Tieko Silva
- Instituto de Pesquisas Energéticas e Nucleares, Radiation Technology Center - IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, São Paulo, CEP 05508-000, Brazil
| | - Vanessa Silva Granadeiro Garcia
- Instituto de Pesquisas Energéticas e Nucleares, Radiation Technology Center - IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, São Paulo, CEP 05508-000, Brazil
| | - Sueli Ivone Borrely
- Instituto de Pesquisas Energéticas e Nucleares, Radiation Technology Center - IPEN-CNEN/SP, Av. Prof. Lineu Prestes, 2242, São Paulo, CEP 05508-000, Brazil
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4
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Kiyoshi Tominaga F, Fonseca Boiani N, Tieko Silva T, Gomes dos Santos J, Temponi Lebre D, Leo P, Ivone Borrely S. Electron beam irradiation applied for the detoxification and degradation of single ciprofloxacin aqueous solution and multiclass pharmaceutical quaternary mixture. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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5
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Barbieri PA, Mari-Ribeiro IP, Lupepsa L, Gigliolli AAS, Paupitz BR, de Melo RF, de Souza Leite Mello EV, de Brito Portela-Castro AL, Borin-Carvalho LA. Metformin-induced alterations in gills of the freshwater fish Astyanax lacustris (Lütken, 1875) detected by histological and scanning electron microscopy. ECOTOXICOLOGY (LONDON, ENGLAND) 2022; 31:1205-1216. [PMID: 36042120 DOI: 10.1007/s10646-022-02580-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
The antidiabetic drug metformin is widely prescribed and found in different concentrations in the environment around the world, raising concern about potential impacts on aquatic life. Analyses of the effects of exposure of biological models to aquatic contaminants are important for assessing pollution effects on fish health. The gills of fishes represent primary targets of disturbance by pollutants, mainly because of the large surface of the respiratory epithelium and the high perfusion rate, which both help the entry of pollutants into this tissue. In this context, the aim of this work was to use gill histological analyses biomarkers to evaluate the toxicity of metformin on aquatic environmental systems, by means of chronic exposure for 90 days of Astyanax lacustris (lambari), an ecologically important neotropical species that can be used as an environmental bioindicator. Histopathological analyses were performed using Light and Scanning Electron Microscopy. The main changes were lamellar fusion, telangiectasia hyperplasia and disappearance of microridges. The morphological changes observed possibly interfere with the gill physiology, indicating an unfavorable situation to the presence of metformin in the water, pointing to a concern that metformin may pose a risk to Astyanax lacustris and likely to other fish species, compromising the dynamics of the aquatic ecosystem as a whole. Graphical abstract.
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Affiliation(s)
- Pablo Americo Barbieri
- Pós-graduação em Genética e Melhoramento, Universidade Estadual de Maringá, Av. Colombo, 5790, Maringá, Paraná, 87020-900, Brazil.
| | - Isabelle Pereira Mari-Ribeiro
- Pós-graduação em Ciências Biológicas, Universidade Estadual de Maringá, Av. Colombo, 5790, Maringá, Paraná, 87020-900, Brazil
| | - Luara Lupepsa
- Pós-graduação em Ciências Biológicas, Universidade Estadual de Maringá, Av. Colombo, 5790, Maringá, Paraná, 87020-900, Brazil
| | | | - Brennda Ribeiro Paupitz
- Pós-graduação em Ciências Biológicas, Universidade Estadual de Maringá, Av. Colombo, 5790, Maringá, Paraná, 87020-900, Brazil
| | - Rafael Fernando de Melo
- Pós-graduação em Genética e Melhoramento, Universidade Estadual de Maringá, Av. Colombo, 5790, Maringá, Paraná, 87020-900, Brazil
| | | | - Ana Luiza de Brito Portela-Castro
- Departamento de Biotecnologia, Genética e Biologia Celular, Av. Colombo, 5790, Maringá, Paraná, 87020-900, Brazil
- Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Universidade Estadual de Maringá, Av. Colombo, 5790, Maringá, Paraná, 87020-900, Brazil
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6
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Ultrasound assisted dispersive solid-phase extraction coupled with high-performance liquid chromatography-diode array detector for determination of caffeine and carbamazepine in environmental samples using exfoliated graphite/chitosan hydrogel. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02328-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Nielsen KM, DeCamp L, Birgisson M, Palace VP, Kidd KA, Parrott JL, McMaster ME, Alaee M, Blandford N, Ussery EJ. Comparative Effects of Embryonic Metformin Exposure on Wild and Laboratory-Spawned Fathead Minnow ( Pimephales promelas) Populations. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:10193-10203. [PMID: 35748754 DOI: 10.1021/acs.est.2c01079] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Metformin is routinely detected in aquatic ecosystems because of its widespread use as a treatment for Type 2 diabetes. Laboratory studies have shown that exposure to environmentally relevant concentrations of metformin can alter metabolic pathways and impact the growth of early life stage (ELS) fish; however, it is unknown whether these effects occur in wild populations. Herein, we evaluate whether findings from laboratory studies are representative and describe the relative sensitivities of both populations. Duplicate exposures (0, 5, or 50 μg/L metformin) were conducted using wild- and lab-spawned fathead minnow (Pimephales promelas) embryos. Apart from the water source, exposure conditions remained constant. Wild embryos were exposed to previously dosed lake water to account for changes in bioavailability, while reconstituted freshwater was used for the laboratory study. Developmental metformin exposure differentially impacted the growth and morphology of both cohorts, with energy dyshomeostasis and visual effects indicated. The fitness of wild-spawned larvae was impacted to a greater extent relative to lab-spawned fish. Moreover, baseline data reveal important morphological differences between wild- and lab-spawned ELS fatheads that may diminish representativeness of lab studies. Findings also confirm the bioavailability of metformin in naturally occurring systems and suggest current exposure scenarios may be sufficient to negatively impact developing fish.
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Affiliation(s)
- Kristin M Nielsen
- Department of Marine Science, University of Texas at Austin, Port Aransas, Texas 78373, USA
| | - Lily DeCamp
- Department of Marine Science, University of Texas at Austin, Port Aransas, Texas 78373, USA
| | - Mona Birgisson
- Department of Marine Science, University of Texas at Austin, Port Aransas, Texas 78373, USA
| | - Vince P Palace
- International Institute for Sustainable Development─Experimental Lakes Area, Winnipeg, Manitoba R3B 0T4, Canada
- University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Karen A Kidd
- Department of Biology & School of Earth, Environment & Society, McMaster University, Hamilton, Ontario L8S 4L8, Canada
| | - Joanne L Parrott
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, Burlington, Ontario L7S 1A1, Canada
| | - Mark E McMaster
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, Burlington, Ontario L7S 1A1, Canada
| | - Mehran Alaee
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, Burlington, Ontario L7S 1A1, Canada
| | | | - Erin J Ussery
- Aquatic Contaminants Research Division, Environment and Climate Change Canada, Burlington, Ontario L7S 1A1, Canada
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8
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Xin J, Yan S, Hong X, Zhang H, Zha J. Environmentally relevant concentrations of carbamazepine induced lipid metabolism disorder of Chinese rare minnow (Gobiocypris rarus) in a gender-specific pattern. CHEMOSPHERE 2021; 265:129080. [PMID: 33261836 DOI: 10.1016/j.chemosphere.2020.129080] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/01/2020] [Accepted: 11/19/2020] [Indexed: 06/12/2023]
Abstract
Carbamazepine (CBZ), an anticonvulsant and mood stabilizer, is ubiquitous distributed in aquatic environment. Though the toxicity and endocrine disrupting effect of CBZ on non-target organisms have been studied, its lipotoxity are scarcely known. To assess the lipotoxicity of CBZ, 2-month-old Chinese rare minnow were exposed to 0, 1, 10, and 100 μg/L CBZ for 90 d. Obvious dyslipidemia was observed after 30 d and 90 d exposure, whereas overt hyperlipidemia was observed in males at 100 μg/L treatments. Severe lipid droplet accumulation in livers was observed at 10 and 100 μg/L treatments for 30 d and in females, whereas those was observed at all treatments in males. In addition, serious mitochondria damage was observed in males at 100 μg/L treatments. After 90 d exposure, the enzyme activities of FAS and ACCα were significantly increased at 10 and 100 μg/L treatments, whereas HMGCR were markedly increased at 100 μg/L treatments (p < 0.05). However, ACCβ were markedly decreased in females at 10 and 100 μg/L treatments and in males at all treatments (p < 0.05). The transcription levels of fasn, accα, hmgcrα, fdft1, idi1, plin1, plin2, caveolin1, and caveolin2 were significantly increased at 100 μg/L treatments (p < 0.05). Moreover, the body weight was obviously increased at 10 and 100 μg/L treatments in males (p < 0.05). Our results confirmed that environmental relevant concentrations CBZ induced lipid metabolism disorder and mitochondria damage of Chinese rare minnow in a gender-specific pattern, which provided a new insight into the lipotoxicity mechanism of CBZ.
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Affiliation(s)
- Jiajing Xin
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100085, China
| | - Saihong Yan
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100085, China
| | - Xiangsheng Hong
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100085, China
| | - Huan Zhang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture, College of Fisheries, Huazhong Agriculture University, Wuhan, 430070, China
| | - Jinmiao Zha
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100085, China.
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9
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Aragão RBDA, Semensatto D, Calixto LA, Labuto G. Pharmaceutical market, environmental public policies and water quality: the case of the São Paulo Metropolitan Region, Brazil. CAD SAUDE PUBLICA 2020; 36:e00192319. [PMID: 33237204 DOI: 10.1590/0102-311x00192319] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 04/27/2020] [Indexed: 11/22/2022] Open
Abstract
Water pollution has been an increasing concern for the authorities responsible for planning and executing public policies. In this qualitative research, we have discussed the most sold pharmaceuticals in the São Paulo Metropolitan Region, Brazil, and compared public policies focused on pharmaceuticals and environmental issues among countries/regions. For that, data provided by Close-Up International related to the sales of medicines in the São Paulo Metropolitan Region between April/2016 and April/2017 were collected and processed to identify and quantify the pharmaceutical products. The 300 most sold medicines in the São Paulo Metropolitan Region fall in 26 therapeutic classes, which include 159 drugs. The most sold pharmaceutical products group is nonsteroidal anti-inflammatory drugs (NSAIDs) representing approximately 44.3% of the total. The ten most sold pharmaceuticals sum up 1200 tons. Dipyrone is the first place in mass representing around 488 tons, followed by metformin with around 310 tons commercialized. Public policies focused on pharmaceuticals in the environment still need adjustments to improve reinforcement, even in developed countries. There is no international standard on how to conduct the issue, each country adopting the public policy that best matches to the local. Brazil, despite having some legislation that approaches the theme, still lacks effective public policies and stakeholder awareness. In this aspect, the need for improvement of the reverse logistics system, consumer orientation to the adequate disposal of unused/expired medicines, and the adoption of the unit-dose system as a therapeutic strategy is evident.
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Affiliation(s)
| | - Décio Semensatto
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brasil
| | - Leandro Augusto Calixto
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brasil
| | - Geórgia Labuto
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, Brasil
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10
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Kortesmäki E, Östman JR, Meierjohann A, Brozinski JM, Eklund P, Kronberg L. Occurrence of Antibiotics in Influent and Effluent from 3 Major Wastewater-Treatment Plants in Finland. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:1774-1789. [PMID: 32557762 DOI: 10.1002/etc.4805] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 04/22/2020] [Accepted: 06/12/2020] [Indexed: 05/23/2023]
Abstract
Wastewater-treatment plants (WWTPs) are regarded as one of the main sources of antibiotics in the environment. In the present study, the concentrations of multiple antibiotics and their metabolites belonging to 5 antibiotic classes were determined in 3 major Finnish WWTPs. An online solid phase extraction-liquid chromatography-tandem mass spectrometry method was used for the extraction and analysis of the compounds. The method was fully validated using real and synthetic wastewaters. Seven antibiotics and 3 metabolites were found in the analyzed samples. Sulfonamides were removed most efficiently, whereas macrolides usually showed negative removal efficiency during the treatment, which means that the concentrations for individual antibiotics determined in the effluent samples were higher than in the influent samples. Sulfadiazine was found at concentrations up to 1018 ng/L, which was the highest concentration of any of the detected antibiotics in influent. In the effluent samples, the highest mean concentration was found for trimethoprim (532 ng/L). The measured mass loads of the antibiotics and metabolites to the receiving waters ranged from 2 to 157 mg/d per 1000 population equivalent. The evaluated environmental risk assessment showed that clarithromycin and erythromycin might pose a risk to the environment. The present study further underlines the importance of implementing technology for efficient removal of xenobiotics during wastewater treatment. Environ Toxicol Chem 2020;39:1774-1789. © 2020 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Ewelina Kortesmäki
- Laboratory of Organic Chemistry, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland
| | - Johnny R Östman
- Laboratory of Organic Chemistry, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland
| | - Axel Meierjohann
- Laboratory of Organic Chemistry, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland
| | - Jenny-Maria Brozinski
- Laboratory of Organic Chemistry, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland
| | - Patrik Eklund
- Laboratory of Organic Chemistry, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland
| | - Leif Kronberg
- Laboratory of Organic Chemistry, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland
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11
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Ågerstrand M, Arnold K, Balshine S, Brodin T, Brooks BW, Maack G, McCallum ES, Pyle G, Saaristo M, Ford AT. Emerging investigator series: use of behavioural endpoints in the regulation of chemicals. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:49-65. [PMID: 31898699 DOI: 10.1039/c9em00463g] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Interest in behavioural ecotoxicology is growing, partly due to technological and computational advances in recording behaviours but also because of improvements of detection capacity facilitating reporting effects at environmentally relevant concentrations. The peer-reviewed literature now contains studies investigating the effects of chemicals, including pesticides and pharmaceuticals, on migration, dispersal, aggression, sociability, reproduction, feeding and anti-predator behaviours in vertebrates and invertebrates. To understand how behavioural studies could be used in regulatory decision-making we: (1) assessed the legal obstacles to using behavioural endpoints in EU chemicals regulation; (2) analysed the known cases of use of behavioural endpoints in EU chemicals regulation; and (3) provided examples of behavioural endpoints of relevance for population level effects. We conclude that the only legal obstacle to the use of behavioural endpoints in EU chemicals regulation is whether an endpoint is considered to be relevant at the population level or not. We also conclude that ecotoxicity studies investigating behavioural endpoints are occasionally used in the EU chemicals regulation, and underscore that behavioural endpoints can be relevant at the population level. To improve the current use of behavioural studies in regulatory decision-making contribution from all relevant stakeholders is required. We have the following recommendations: (1) researchers should conduct robust, well-designed and transparent studies that emphasize the relevance of the study for regulation of chemicals; (2) editors and scientific journals should promote detailed, reliable and clearly reported studies; (3) regulatory agencies and the chemical industry need to embrace new behavioural endpoints of relevance at the population level.
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Affiliation(s)
- Marlene Ågerstrand
- Department of Environmental Science (ACES), Stockholm University, Stockholm, Sweden.
| | - Kathryn Arnold
- Department of Environment and Geography, University of York, York, UK
| | - Sigal Balshine
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Canada
| | - Tomas Brodin
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences (SLU), Umeå, Sweden
| | - Bryan W Brooks
- Department of Environmental Science, Institute of Biomedical Studies, Baylor University, Waco, TX, USA and School of Environment, Jinan University, Guangzhou, China
| | - Gerd Maack
- Department of Pharmaceuticals, German Environment Agency (UBA), Dessau, Germany
| | - Erin S McCallum
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences (SLU), Umeå, Sweden
| | - Greg Pyle
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada
| | - Minna Saaristo
- School of Biological Sciences, Monash University, Victoria, Australia
| | - Alex T Ford
- Institute of Marine Sciences, University of Portsmouth, Portsmouth, UK
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12
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Godoy AA, Oliveira ÁCD, Silva JGM, Azevedo CCDJ, Domingues I, Nogueira AJA, Kummrow F. Single and mixture toxicity of four pharmaceuticals of environmental concern to aquatic organisms, including a behavioral assessment. CHEMOSPHERE 2019; 235:373-382. [PMID: 31271997 DOI: 10.1016/j.chemosphere.2019.06.200] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/25/2019] [Accepted: 06/26/2019] [Indexed: 05/25/2023]
Abstract
Pharmaceuticals are frequently detected in aquatic environments as mixtures and can cause toxic effects to non-target organisms. We aimed to evaluate the single and mixture effects of the pharmaceuticals metformin, bisoprolol, ranitidine and sotalol using Daphnia similis and Danio rerio. In addition, we aimed to test the predictive accuracy of the mathematical models concentration addition and independent action and to evaluate the nature of the possible toxicological interactions among these pharmaceuticals using the combination index-isobologram model. The acute toxicity of these four pharmaceuticals individually and of their binary mixtures were evaluated using the D. similis tests. Developmental and behavioral effects induced by the pharmaceuticals in quaternary mixtures were evaluated using D. rerio embryos. We observed that most of the binary mixture effects were in the zone between the effects predicted by the concentration addition and the independent action model. The combination index-isobologram model showed to be adequate to describe the nature of possible interactions occurring between the combined pharmaceuticals. Developmental and behavioral acute adverse effects seem not to be induced by the joint action of the quaternary mixture of the evaluated pharmaceuticals on D. rerio embryos, at the concentrations at which they are usually found in surface fresh waters. However, from the results obtained with D. similis, we can conclude that assessing the ecological risk based on the effects of individual pharmaceuticals can underestimate the risk level posed by these environmental contaminants.
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Affiliation(s)
- Aline Andrade Godoy
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo (USP), Avenida Professor Lineu Prestes, 580, São Paulo, SP, 05508-000, Brazil; Science and Technology Institute, Federal University of Alfenas (Unifal-MG), Rodovia José Aurélio Vilela, 11,999, Poços de Caldas, MG, 37715-400, Brazil
| | - Ádria Caloto de Oliveira
- Faculty of Technology, State University of Campinas (Unicamp), Rua Paschoal Marmo, 1888, Limeira, SP, 13484-332, Brazil
| | - João Gabriel Mesquita Silva
- Faculty of Technology, State University of Campinas (Unicamp), Rua Paschoal Marmo, 1888, Limeira, SP, 13484-332, Brazil
| | | | - Inês Domingues
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | | | - Fábio Kummrow
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo (USP), Avenida Professor Lineu Prestes, 580, São Paulo, SP, 05508-000, Brazil; Department of Pharmaceutical Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (Unifesp), Rua São Nicolau, 210, 09972-270, Diadema, SP, Brazil.
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Heye K, Wiebusch J, Becker J, Rongstock L, Bröder K, Wick A, Schulte-Oehlmann U, Oehlmann J. Ecotoxicological characterization of the antiepileptic drug carbamazepine using eight aquatic species: baseline study for future higher tier tests. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2019; 54:441-451. [PMID: 30789049 DOI: 10.1080/10934529.2018.1562819] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/10/2018] [Accepted: 12/11/2018] [Indexed: 06/09/2023]
Abstract
Ecotoxicological effects of the antiepileptic drug carbamazepine (CBZ) were investigated in one primary producer (Desmodesmus subspicatus) and seven invertebrate species (Daphnia magna, Daphnia pulex, Ceriodaphnia dubia, Gammarus fossarum, Potamopyrgus antipodarum, Lumbriculus variegatus and Chironomus riparius) using OECD and US EPA guidelines for chronic toxicity testing. The present data set was used to conduct a hazard assessment for CBZ including confirmatory data. While most of our results were in accordance with previous studies, published effect data for C. dubia and D. pulex could not be confirmed, even though they have previously been considered to be the most sensitive invertebrate species to CBZ exposure. The non-biting midge, C. riparius, was the most sensitive test organism in the present study. From an EC10 of 406 µg/L and a no observed effect concentration (NOEC) of 400 µg/L, a predicted no effect concentration (PNEC) of 8 µg/L was calculated. With regard to realistic predicted and measured environmental concentrations, the environmental risk can be considered as low for CBZ when the assessment is based on laboratory-based effect data. To conduct a refined and more realistic assessment, this study provides foundational data for two future, higher tier studies: one multiple-stressor experiment and one mesocosm study.
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Affiliation(s)
- Katharina Heye
- a Department Aquatic Ecotoxicology, Faculty of Biological Sciences , Goethe University Frankfurt am Main , Frankfurt am Main , Germany
| | - Janina Wiebusch
- a Department Aquatic Ecotoxicology, Faculty of Biological Sciences , Goethe University Frankfurt am Main , Frankfurt am Main , Germany
| | - Johannes Becker
- a Department Aquatic Ecotoxicology, Faculty of Biological Sciences , Goethe University Frankfurt am Main , Frankfurt am Main , Germany
| | - Lydia Rongstock
- a Department Aquatic Ecotoxicology, Faculty of Biological Sciences , Goethe University Frankfurt am Main , Frankfurt am Main , Germany
| | - Kathrin Bröder
- b German Federal Institute of Hydrology (BfG) , Koblenz , Germany
| | - Arne Wick
- b German Federal Institute of Hydrology (BfG) , Koblenz , Germany
| | - Ulrike Schulte-Oehlmann
- a Department Aquatic Ecotoxicology, Faculty of Biological Sciences , Goethe University Frankfurt am Main , Frankfurt am Main , Germany
| | - Jörg Oehlmann
- a Department Aquatic Ecotoxicology, Faculty of Biological Sciences , Goethe University Frankfurt am Main , Frankfurt am Main , Germany
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Caldwell DJ, D'Aco V, Davidson T, Kappler K, Murray-Smith RJ, Owen SF, Robinson PF, Simon-Hettich B, Straub JO, Tell J. Environmental risk assessment of metformin and its transformation product guanylurea: II. Occurrence in surface waters of Europe and the United States and derivation of predicted no-effect concentrations. CHEMOSPHERE 2019; 216:855-865. [PMID: 30385066 DOI: 10.1016/j.chemosphere.2018.10.038] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 09/29/2018] [Accepted: 10/06/2018] [Indexed: 06/08/2023]
Abstract
Metformin (MET), CAS 1115-70-4 (Metformin hydrochloride), is an antidiabetic drug with high usage in North America and Europe and has become the subject of regulatory interest. A pharmaceutical industry working group investigated environmental risks of MET. Environmental fate and chronic effects data were collated across the industry for the present risk assessment. Predicted environmental concentrations (PECs) for MET were modeled for the USA and Europe using the PhATE and GREAT-ER models, respectively. PECs were compared with measured environmental concentrations (MECs) for the USA and Europe. A predicted no effect concentration (PNEC) of 1 mg/L for MET was derived by deterministic procedures, applying an assessment factor of 10 to the lowest no observed effect concentration (i.e., 10 mg/L) from multiple chronic studies with algae, daphnids and fish. The PEC/PNEC and MEC/PNEC risk characterization ratios were <1, indicating no significant risk for MET with high Margins of Safety (MOS) of >868. MET is known to degrade during wastewater treatment to guanylurea (GUU, CAS 141-83-3), which we have shown to further degrade. There are no GUU toxicity data in the literature; hence, chronic studies for GUU were conducted to derive a PNEC of 0.16 mg/L. PECs were derived for GUU as for MET, plus MECs were retrieved from the literature. The PEC/PNEC and MEC/PNEC risk characterization ratios for GUU were also <1, with an MOS of >6.5. Based on standard risk assessment procedures for both MET and its transformation product GUU, there is no significant risk to aquatic life.
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Affiliation(s)
| | - Vincent D'Aco
- BSI EHS Services and Solutions, 1187 Main Avenue, Clifton, NJ, USA.
| | - Todd Davidson
- Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, NJ, USA.
| | - Kelly Kappler
- Johnson & Johnson, 410 George Street, New Brunswick, NJ, USA.
| | | | | | - Paul F Robinson
- AstraZeneca, Alderley Park, Cheshire, United Kingdom; Dr. Knoell Consult Ltd., 22 Cathedral Road, Cardiff CF11 9LJ, United Kingdom.
| | | | | | - Joan Tell
- Merck Sharp & Dohme, 2000 Galloping Hill Road, Kenilworth, NJ, USA.
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Godoy AA, Domingues I, Arsénia Nogueira AJ, Kummrow F. Ecotoxicological effects, water quality standards and risk assessment for the anti-diabetic metformin. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:534-542. [PMID: 30216886 DOI: 10.1016/j.envpol.2018.09.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/05/2018] [Accepted: 09/05/2018] [Indexed: 05/20/2023]
Abstract
Metformin (MET) is among the most consumed pharmaceuticals worldwide. This compound has been frequently detected in fresh surface water. However, ecotoxicological information for MET is still too limited, particularly regarding chronic and behavioral data. This study aimed to help filling these knowledge gaps, by carrying out both acute and chronic studies with four different test organisms from three different trophic levels. We assessed different endpoints, including the swimming behavior of Danio rerio larvae. We also derived both short-term and long-term environmental quality standards (EQS) for the protection of freshwater pelagic biota towards MET adverse effects. A risk quotient (RQ) was calculated for MET in fresh surface water, considering a worst-case scenario. Daphnia similis was by far the most sensitive species evaluated. An EC10 of 4.4 mg L-1 was obtained from the reproduction test with D. similis. A long-term EQS of 88 μg L-1 was derived and a RQ of 0.38 was obtained. An ecological risk is not expected for the chronic exposure of pelagic freshwater species to MET, considering the endpoints and the standard bioassays usually recommended in standard protocols. However, endocrine disruptive effects and potential interactive effects of MET with other co-occurring contaminants cannot be ruled out. To the best of our knowledge, this study presents the first data related with MET effects on population endpoints of D. similis and Hydra attenuata, as well as on the locomotor activity of D. rerio.
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Affiliation(s)
- Aline Andrade Godoy
- Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo (USP), Avenida Professor Lineu Prestes, 580, São Paulo, SP, 05508-000, Brazil; Science and Technology Institute, Federal University of Alfenas (Unifal-MG), Rodovia José Aurélio Vilela, 11,999, Poços de Caldas, MG, 37715-400, Brazil
| | - Inês Domingues
- Department of Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | | | - Fábio Kummrow
- Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo (USP), Avenida Professor Lineu Prestes, 580, São Paulo, SP, 05508-000, Brazil; Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (Unifesp), Rua São Nicolau, 210, 09972-270, Diadema, SP, Brazil.
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Tao Y, Chen B, Zhang BH, Zhu ZJ, Cai Q. Occurrence, Impact, Analysis and Treatment of Metformin and Guanylurea in Coastal Aquatic Environments of Canada, USA and Europe. ADVANCES IN MARINE BIOLOGY 2018; 81:23-58. [PMID: 30471658 DOI: 10.1016/bs.amb.2018.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This review discusses the occurrence, impact, analysis and treatment of metformin and guanylurea in coastal aquatic environments of Canada, USA and Europe. Metformin, a biguanide in chemical classification, is widely used as one of the most effective first-line oral drugs for type 2 diabetes. It is difficult to be metabolized by the human body and exists in both urine and faeces samples in these regions. Guanylurea is metformin's biotransformation product. Consequently, significant concentrations of metformin and guanylurea have been reported in wastewater treatment plants (WWTPs) and coastal aquatic environments. The maximum concentrations of metformin and guanylurea in surface water samples were as high as 59,000 and 4502ngL-1, respectively. Metformin can be absorbed in non-target organisms by plants and in Atlantic salmon (Salmo salar). Guanylurea has a confirmed mitotic activity in plant cells. Analysis methods of metformin are currently developed based on high-performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS). The removal of metformin from aquatic environments in the target regions is summarized. The review helps to fill a knowledge gap and provides insights for regulatory considerations. The potential options for managing these emerging pollutants are outlined too.
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Affiliation(s)
- Yunwen Tao
- The Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Bing Chen
- The Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada.
| | - Baiyu Helen Zhang
- The Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Zhiwen Joy Zhu
- The Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Qinhong Cai
- The Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
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Coors A, Vollmar P, Sacher F, Polleichtner C, Hassold E, Gildemeister D, Kühnen U. Prospective environmental risk assessment of mixtures in wastewater treatment plant effluents - Theoretical considerations and experimental verification. WATER RESEARCH 2018; 140:56-66. [PMID: 29684702 DOI: 10.1016/j.watres.2018.04.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 04/12/2018] [Accepted: 04/13/2018] [Indexed: 06/08/2023]
Abstract
The aquatic environment is continually exposed to a complex mixture of chemicals, whereby effluents of wastewater treatment plants (WWTPs) are one key source. The aim of the present study was to investigate whether environmental risk assessments (ERAs) addressing individual substances are sufficiently protective for such coincidental mixtures. Based on a literature review of chemicals reported to occur in municipal WWTP effluents and mode-of-action considerations, four different types of mixtures were composed containing human pharmaceuticals, pesticides, and chemicals regulated under REACH. The experimentally determined chronic aquatic toxicity of these mixtures towards primary producers and the invertebrate Daphnia magna could be adequately predicted by the concept of concentration addition, with up to 5-fold overestimation and less than 3-fold underestimation of mixture toxicity. Effluents of a municipal WWTP had no impact on the predictability of mixture toxicity and showed no adverse effects on the test organisms. Predictive ERAs for the individual mixture components based on here derived predicted no effect concentrations (PNECs) and median measured concentrations in WWTP effluents (MCeff) indicated no unacceptable risk for any of the individual chemicals, while MCeff/PNEC summation indicated a possible risk for multi-component mixtures. However, a refined mixture assessment based on the sum of toxic units at species level indicated no unacceptable risks, and allowed for a safety margin of more than factor 10, not taking into account any dilution of WWTP effluents by surface waters. Individual substances, namely climbazole, fenofibric acid and fluoxetine, were dominating the risks of the investigated mixtures, while added risk due to the mixture was found to be low with the risk quotient being increased by less than factor 2. Yet, uncertainty remains regarding chronic mixture toxicity in fish, which was not included in the present study. The number and identity of substances composing environmental mixtures such as WWTP effluents is typically unknown. Therefore, a mixture assessment factor is discussed as an option for a prospective ERA of mixtures of unknown composition.
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Affiliation(s)
- Anja Coors
- ECT Oekotoxikologie GmbH, Boettgerstrasse 2-14, 65439 Flörsheim/Main, Germany.
| | - Pia Vollmar
- ECT Oekotoxikologie GmbH, Boettgerstrasse 2-14, 65439 Flörsheim/Main, Germany
| | - Frank Sacher
- DVGW-Technologiezentrum Wasser (TZW), Karlsruher Straße 84, 76139 Karlsruhe, Germany
| | | | - Enken Hassold
- UBA - German Environment Agency, Wörlitzer Platz 1, 06844 Dessau-Roßlau, Germany
| | - Daniela Gildemeister
- UBA - German Environment Agency, Wörlitzer Platz 1, 06844 Dessau-Roßlau, Germany
| | - Ute Kühnen
- UBA - German Environment Agency, Wörlitzer Platz 1, 06844 Dessau-Roßlau, Germany
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Challis JK, Cuscito LD, Joudan S, Luong KH, Knapp CW, Hanson ML, Wong CS. Inputs, source apportionment, and transboundary transport of pesticides and other polar organic contaminants along the lower Red River, Manitoba, Canada. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 635:803-816. [PMID: 29710604 DOI: 10.1016/j.scitotenv.2018.04.128] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/09/2018] [Accepted: 04/09/2018] [Indexed: 06/08/2023]
Abstract
The Red River originates in the U.S., drains into Lake Winnipeg, and is a significant pathway for nutrients. We investigate its role as a source for pesticides, pharmaceuticals, per- and polyfluoroalkyl substances (PFASs), and microbes bearing antibiotic resistance genes (ARGs). We delineate agricultural, urban, and rural land-use for organic contaminants to determine the extent of chemical transboundary riverine fluxes, and characterize levels and trends of organic contaminants and ARGs between spring and fall 2014 and 2015. The herbicide atrazine peaked at over 500 ng/L (14-day time-weighted average) near the border, indicating that the U.S. represents the major source into Canada from the Red River. Neonicotinoid insecticides had relatively constant concentrations, suggesting more widespread agricultural use in both countries. Pesticide concentrations were greatest post-application in June and July. Mass loadings of pesticides over the sampling periods, from the river to Lake Winnipeg, ranged from approximately 800 kg of atrazine, to 120 kg of thiamethoxam and clothianidin, to 40 kg of imidacloprid. Exposure distributions for atrazine exceeded benchmark water quality guidelines for protection of aquatic life (0.2% probability of exceeding chronic benchmark) with no exceedances for neonicotinoids. Seven pharmaceuticals were detected, mostly at low ng/L levels downstream of the City of Winnipeg wastewater treatment plant. Carbamazepine, the only pharmaceutical detected consistently at all sites, contributed on average 20 kg each year into Lake Winnipeg. While minor inputs were observed all along the river, city inputs represented the greatest source of pharmaceuticals to the river. Both PFASs and ARGs were observed consistently and ubiquitously, indicative of an anthropogenically-influenced system with no indications of any single point-source signature. While transboundary flux from the U.S. was an important source of pesticides to the Red River, especially for atrazine, observed concentrations of all measured contaminants suggest that known aquatic toxicological risk is minimal.
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Affiliation(s)
- Jonathan K Challis
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Leah D Cuscito
- Department of Chemistry and Department of Environmental Studies and Sciences, Richardson College for the Environment, The University of Winnipeg, Winnipeg, Manitoba R3B 2E9, Canada
| | - Shira Joudan
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Kim H Luong
- Department of Chemistry and Department of Environmental Studies and Sciences, Richardson College for the Environment, The University of Winnipeg, Winnipeg, Manitoba R3B 2E9, Canada
| | - Charles W Knapp
- Department of Civil & Environmental Engineering, University of Strathclyde, Glasgow, Scotland G1 1XN, UK
| | - Mark L Hanson
- Department of Environment and Geography, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Charles S Wong
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada; Department of Chemistry and Department of Environmental Studies and Sciences, Richardson College for the Environment, The University of Winnipeg, Winnipeg, Manitoba R3B 2E9, Canada; Department of Environment and Geography, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.
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19
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Rogé V, Guignard C, Lamblin G, Laporte F, Fechete I, Garin F, Dinia A, Lenoble D. Photocatalytic degradation behavior of multiple xenobiotics using MOCVD synthesized ZnO nanowires. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.05.088] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Jacob S, Dötsch A, Knoll S, Köhler HR, Rogall E, Stoll D, Tisler S, Huhn C, Schwartz T, Zwiener C, Triebskorn R. Does the antidiabetic drug metformin affect embryo development and the health of brown trout ( Salmo trutta f. fario)? ENVIRONMENTAL SCIENCES EUROPE 2018; 30:48. [PMID: 30595998 PMCID: PMC6290717 DOI: 10.1186/s12302-018-0179-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 11/24/2018] [Indexed: 05/03/2023]
Abstract
BACKGROUND Due to the rising number of type 2 diabetes patients, the antidiabetic drug, metformin is currently among those pharmaceuticals with the highest consumption rates worldwide. Via sewage-treatment plants, metformin enters surface waters where it is frequently detected in low concentrations (µg/L). Since possible adverse effects of this substance in aquatic organisms have been insufficiently explored to date, the aim of this study was to investigate the impact of metformin on health and development in brown trout (Salmo trutta f. fario) and its microbiome. RESULTS Brown trout embryos were exposed to 0, 1, 10, 100 and 1000 µg/L metformin over a period from 48 days post fertilisation (dpf) until 8 weeks post-yolk sac consumption at 7 °C (156 dpf) and 11 °C (143 dpf). Chemical analyses in tissues of exposed fish showed the concentration-dependent presence of metformin in the larvae. Mortality, embryonic development, body length, liver tissue integrity, stress protein levels and swimming behaviour were not influenced. However, compared to the controls, the amount of hepatic glycogen was higher in larvae exposed to metformin, especially in fish exposed to the lowest metformin concentration of 1 µg/L, which is environmentally relevant. At higher metformin concentrations, the glycogen content in the liver showed a high variability, especially for larvae exposed to 1000 µg/L metformin. Furthermore, the body weight of fish exposed to 10 and 100 µg/L metformin at 7 °C and to 1 µg/L metformin at 11 °C was decreased compared with the respective controls. The results of the microbiome analyses indicated a shift in the bacteria distribution in fish exposed to 1 and 10 µg/L metformin at 7 °C and to 100 µg/L metformin at 11 °C, leading to an increase of Proteobacteria and a reduction of Firmicutes and Actinobacteria. CONCLUSIONS Overall, weight reduction and the increased glycogen content belong to the described pharmaceutical effects of the drug in humans, but this study showed that they also occur in brown trout larvae. The impact of a shift in the intestinal microbiome caused by metformin on the immune system and vitality of the host organism should be the subject of further research before assessing the environmental relevance of the pharmaceutical.
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Affiliation(s)
- Stefanie Jacob
- Animal Physiological Ecology, University of Tübingen, Auf der Morgenstelle 5, 72076 Tübingen, Germany
| | - Andreas Dötsch
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut, Haid-und-Neu-Straße 9, 76131 Karlsruhe, Germany
- Interface Microbiology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Sarah Knoll
- Effect-based Environmental Analysis, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Heinz-R. Köhler
- Animal Physiological Ecology, University of Tübingen, Auf der Morgenstelle 5, 72076 Tübingen, Germany
| | - Eike Rogall
- Interface Microbiology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Dominic Stoll
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Haid-und-Neu-Straße 9, 76131 Karlsruhe, Germany
| | - Selina Tisler
- Environmental Analytical Chemistry, University of Tübingen, Hölderlinstr.12, 72074 Tübingen, Germany
| | - Carolin Huhn
- Effect-based Environmental Analysis, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Thomas Schwartz
- Interface Microbiology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Christian Zwiener
- Environmental Analytical Chemistry, University of Tübingen, Hölderlinstr.12, 72074 Tübingen, Germany
| | - Rita Triebskorn
- Animal Physiological Ecology, University of Tübingen, Auf der Morgenstelle 5, 72076 Tübingen, Germany
- Steinbeis Transfer Center for Ecotoxicology and Ecophysiology, Blumenstr. 13, 72108 Rottenburg, Germany
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Williams M, Backhaus T, Bowe C, Choi K, Connors K, Hickmann S, Hunter W, Kookana R, Marfil-Vega R, Verslycke T. Pharmaceuticals in the environment: An introduction to the ET&C special issue. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:763-766. [PMID: 27003718 DOI: 10.1002/etc.3394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/04/2016] [Indexed: 06/05/2023]
Affiliation(s)
| | - Thomas Backhaus
- Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Craig Bowe
- Department of Science, Ohio University, Ironton, OH, USA
| | - Kyungho Choi
- School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Kristin Connors
- Oak Ridge Institute for Science and Education, Oak Ridge, TN, USA
| | - Silke Hickmann
- Environmental Risk Assessment of Pharmaceuticals, German Environment Agency, Dessau-Roßlau, Germany
| | - Wesley Hunter
- Center for Veterinary Medicine, US Food and Drug Administration, Rockville, MD, USA
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