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Cordeiro RC, Santelli RE, Valle Machado WT, Gomes AS, Moreira LS, Oliveira RL, Abreu IM, de Fatima Guadalupe Meniconi M. Distribution of acid-volatile sulfides and simultaneously extracted metals in Guanabara Bay: combination of anthropogenic, sedimentological, and geochemical processes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:24163-24179. [PMID: 38436860 DOI: 10.1007/s11356-024-32506-8] [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: 05/29/2023] [Accepted: 02/13/2024] [Indexed: 03/05/2024]
Abstract
Coastal sedimentary systems are affected by continental and marine metal pollutant inputs associated with different hydrodynamic characteristics and geochemical processes. These include the formation of acid-volatile sulfides (AVS) within sediments, which affects metal bioavailability and associated aquatic biota toxicity risks. Physicochemical changes in these environments in the face of extreme natural or man-made environmental influences can dramatically alter metal bioavailability and toxicity through metal binding and immobilization as insoluble sulfides. Surface sediments from Guanabara Bay, river mouths, and two mangrove areas were collected, and AVS and simultaneously extracted metals Cd, Cu, Fe, Mn, Ni, Pb, and Zn and ΣSEM were determined to assess sediment quality. A severe eutrophication history favored AVS concentrations exceeding or close to the sum-SEM concentrations, demonstrating that AVS play an important role in making trace metals unavailable for assimilation by living organisms, mitigating the risks of contamination for the local biota. This eutrophication-driven sulfide accumulation may attenuate the sediment toxicity in sites heavily polluted by metals, while some fewer eutrophic sites became more exposed to metals in excess to AVS.
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Affiliation(s)
- Renato Campello Cordeiro
- Geochemistry Program, Department of Geochemistry, Institute of Chemistry, Federal Fluminense University, Niterói, RJ, 24020-141, Brazil.
| | - Ricardo Erthal Santelli
- Geochemistry Program, Department of Geochemistry, Institute of Chemistry, Federal Fluminense University, Niterói, RJ, 24020-141, Brazil
- Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-909, Brazil
| | - Wilson Thadeu Valle Machado
- Geochemistry Program, Department of Geochemistry, Institute of Chemistry, Federal Fluminense University, Niterói, RJ, 24020-141, Brazil
| | - Abilio Soares Gomes
- Marine Biology Department, Institute of Biology, Federal Fluminense University, Niterói, RJ, 24020-141, Brazil
| | - Luciane Silva Moreira
- Geochemistry Program, Department of Geochemistry, Institute of Chemistry, Federal Fluminense University, Niterói, RJ, 24020-141, Brazil
| | - Rafael Lopes Oliveira
- Geochemistry Program, Department of Geochemistry, Institute of Chemistry, Federal Fluminense University, Niterói, RJ, 24020-141, Brazil
| | - Ilene Matano Abreu
- Geochemistry Program, Department of Geochemistry, Institute of Chemistry, Federal Fluminense University, Niterói, RJ, 24020-141, Brazil
- Institute of Geosciences, Federal University of Bahia, Salvador, BA, Brazil
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2
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Barreira J, Araújo DF, Rodrigues BQA, Tonhá MS, Mendes RDA, Souto-Oliveira CE, Babinski M, Knoery J, Sanders CJ, Garnier J, Machado W. Copper isotopes as a tool to trace contamination in mangroves from an urbanized watershed. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122785. [PMID: 37871737 DOI: 10.1016/j.envpol.2023.122785] [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: 05/10/2023] [Revised: 08/27/2023] [Accepted: 10/21/2023] [Indexed: 10/25/2023]
Abstract
This study investigates the chronology of copper (Cu) contamination and its stable isotopes within an emblematic Brazilian mangrove impacted by multiple urban and industrial Cu sources, deforestation, and eutrophication. In particular, it tests Cu isotopes as tracers of anthropogenic inputs into an anthropized watershed impacted by multiple sources. To do so, we used multi-isotopic approaches (δ65Cu, δ13C, and δ15N), elemental analyses (Al, Ca, Fe, P, Cu, C, and N), and selective and sequential extractions in a210Pb-dated sediment core. This geochemical "toolbox" allowed identifying two main stages of Cu evolution in the sediment core. In the first stage, before 1965, Cu isotope fingerprints responded to landscape changes, indicating a shift from marine to geogenic dominance due to the remobilization and erosion of terrestrial materials. In the second stage, after 1965, the sediment geochemical profile showed increased Cu total concentrations with a higher bioavailability (as reflected by sequential extraction data) accompanying changes in Cu isotope signatures towards anthropogenic values. The findings evidence that local industrial sources, possibly combined with diffuse urban sources, export Cu into downstream mangroves with a distinguishable isotope signature compared to natural values. This study demonstrates the applicability of Cu isotopes as new environmental forensic tools to trace anthropogenic sources in mangrove sediments. Incorporated into a robust geochemical toolbox that combines inorganic and organic proxies for sedimentary materials, this new tool provides a comprehensive understanding of Cu dynamics in mangrove ecosystems, shedding light on the historical and current sources of Cu.
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Affiliation(s)
- João Barreira
- Geochemistry Program, Chemistry Institute, Fluminense Federal University, Brazil.
| | - Daniel F Araújo
- Ifremer, CCEM Contamination Chimique des Ecosystèmes Marins, F-44000, Nantes, France
| | - Breno Q A Rodrigues
- Geochemistry Program, Chemistry Institute, Fluminense Federal University, Brazil
| | | | | | | | | | - Joël Knoery
- Ifremer, CCEM Contamination Chimique des Ecosystèmes Marins, F-44000, Nantes, France
| | | | | | - Wilson Machado
- Geochemistry Program, Chemistry Institute, Fluminense Federal University, Brazil
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3
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Szafranski GT, Granek EF. Contamination in mangrove ecosystems: A synthesis of literature reviews across multiple contaminant categories. MARINE POLLUTION BULLETIN 2023; 196:115595. [PMID: 37852064 DOI: 10.1016/j.marpolbul.2023.115595] [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: 08/16/2023] [Revised: 09/17/2023] [Accepted: 09/24/2023] [Indexed: 10/20/2023]
Abstract
Mangrove forests are exposed to diverse ocean-sourced and land-based contaminants, yet mangrove contamination research lags. We synthesize existing data and identify major gaps in research on five classes of mangrove contaminants: trace metals, persistent organic pollutants, polycyclic aromatic hydrocarbons, microplastics, and pharmaceuticals and personal care products. Research is concentrated in Asia, neglected in Africa and the Americas; higher concentrations are correlated with waste water treatment plants, industry, and urbanized landscapes. Trace metals and polycyclic aromatic hydrocarbons, frequently at concentrations below regulatory thresholds, may bioconcentrate in fauna, whereas persistent organic pollutants were at levels potentially harmful to biota through short- or long-term exposure. Microplastics were at variable levels, yet lack regulatory and ecotoxicological thresholds. Pharmaceuticals and personal care products received minimal research despite biological activity at small concentrations. Given potential synergistic effects, multi-contaminant research, increased monitoring of multiple contaminant classes, and increased public outreach and involvement are needed.
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Affiliation(s)
- Geoffrey T Szafranski
- Environmental Science & Management, Portland State University, Portland, OR, United States of America
| | - Elise F Granek
- Environmental Science & Management, Portland State University, Portland, OR, United States of America.
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4
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Monte CN, Rodrigues APC, Galvão PMA, Pontes GC, Malm O, Wasserman JC, Machado W. Mercury methylation upon coastal sediment resuspension: a worst-case approach under dark conditions. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:805. [PMID: 36123414 DOI: 10.1007/s10661-022-10485-y] [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: 03/13/2022] [Accepted: 09/10/2022] [Indexed: 06/15/2023]
Abstract
Mercury behavior upon resuspension of sediments from two impacted areas of Guanabara Bay was evaluated to assess worst-case methylmercury (MeHg) responses, under dark experimental conditions to prevent demethylation by photolysis. Study areas include the Rio de Janeiro Harbor (RJH) and the chlor-alkali plant-affected Meriti River (MR) estuary. Total mercury (THg) and MeHg concentrations were determined along 24-h experiments of sediment resuspension in the bay water in dark conditions. Fine-grained Meriti River (MR) estuary sediments had 8 times higher MeHg initial concentrations than sandy Rio de Janeiro Harbor (RJH) sediments (3.4 ± 0.29 vs. 0.41 ± 0.1 ng g-1, respectively). Though THg contents were uncorrelated with resuspension time, statistically significant correlations of MeHg (rs = 0.78) and %MeHg in relation to THg (rs = 0.86) with resuspension time were observed for RJH sediments, indicating net methylation only for this study site. These positive correlation trends correspond to a 2.8 times MeHg concentration increase (ΔMeHg = 0.75 ng g-1) and 4.4 times increase in %MeHg (Δ%MeHg = 1.0%), after 24 h of resuspension. This suggests that assessments of factors affecting the MeHg spatial-temporal variability and associated toxicity risks can be limited in some sites if concentration changes due to sediment resuspension-redeposition processes are not considered. Therefore, the inclusion of MeHg evaluation before and after sediment resuspension events is recommendable for the improvement of dredging licensing and monitoring activities.
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Affiliation(s)
- Christiane N Monte
- Geochemistry Program, Universidade Federal Fluminense, Niterói, RJ, Brazil.
- Geology Department, Universidade Federal Do Oeste Do Pará, Santarém, PA, Brazil.
| | - Ana Paula C Rodrigues
- Geochemistry Program, Universidade Federal Fluminense, Niterói, RJ, Brazil
- Marine Biology Department, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, RJ, Brazil
| | - Petrus M A Galvão
- Biophysics Institute, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, RJ, Brazil
| | - Gabriela C Pontes
- Geochemistry Program, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Olaf Malm
- Biophysics Institute, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, RJ, Brazil
| | - Júlio C Wasserman
- Geochemistry Program, Universidade Federal Fluminense, Niterói, RJ, Brazil
- Geosciences Institute, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Wilson Machado
- Geochemistry Program, Universidade Federal Fluminense, Niterói, RJ, Brazil
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Hossain MB, Masum Z, Rahman MS, Yu J, Noman MA, Jolly YN, Begum BA, Paray BA, Arai T. Heavy Metal Accumulation and Phytoremediation Potentiality of Some Selected Mangrove Species from the World's Largest Mangrove Forest. BIOLOGY 2022; 11:biology11081144. [PMID: 36009771 PMCID: PMC9405028 DOI: 10.3390/biology11081144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/08/2022] [Accepted: 05/10/2022] [Indexed: 11/16/2022]
Abstract
Toxic metal pollution is a global issue, and the use of metal-accumulating plants to clean contaminated ecosystems is one of the most rapidly growing ecologically beneficial and cost-effective technologies. In this study, samples of sediment and three mangrove species (Excoecaria agallocha, Avicennia officinalis, Sonneratia apetala) were collected from the world’s largest mangrove forest (along the Northern Bay of Bengal Coast) with the aim of evaluating metal concentrations, contamination degrees, and phytoremediation potentiality of those plants. Overall, the heavy metals concentration in sediment ranged from Cu: 72.41−95.89 mg/kg; Zn: 51.28−71.20 mg/kg; Fe: 22,760−27,470 mg/kg; Mn: 80.37−116.37 mg/kg; Sr: 167.92−221.44 mg/kg. In mangrove plants, the mean concentrations were in the order of E. agallocha > A. officinalis > S. apetala. The mean (± SD) concentration of each metal in the plant tissue (root) was found following the descending order of Fe (737.37 ± 153.06) > Mn (151.13 ± 34.26) > Sr (20.98 ± 6.97) > Cu (16.12 ± 4.34) > Zn (11.3 ± 2.39) mg/kg, whereas, in the leaf part, the mean concentration (mg/kg) of each metal found in the order of Fe (598.75 ± 410.65) > Mn (297.27 ± 148.11) > Sr (21.40 ± 8.71) > Cu (14.25 ± 2.51) > Zn (12.56 ± 2.13). The contamination factor (CF) values for the studied metals were in the descending order of Cu > Sr > Zn > Fe > Mn. The values of Igeo (Geo-accumulation index) and CF showed that the area was unpolluted to moderately polluted by Zn, Fe, Mn, Cu and Sr. Enrichment factor (EF) values in both sampling stations portrayed moderate to minimum enrichment. Phytoremediation potentiality of the species was assessed by bio-concentration factor (BCF) and translocation factor (TF). BCF values showed less accumulation for most of the heavy metals (<1) except Mn which was highly accumulated in all mangrove plants. The translocation factor (TF) values depicted that most of the heavy metals were strongly accumulated in plant tissues (>1). However, the BCF value depicts that Mn was highly bioconcentrated in E. agallocha, but the translocation on leaves tissue were minimum, which reveals that E. agallocha is phytoextractor for Mn, and accumulated in root tissues. All the examined plants can be used as phytoextractors as they have bioconcentration factors <1 and translocation factors >1. However, A. officinalis is clearly more suitable for metal extraction than S. apetala and E. agallocha in terms of hyper-metabolizing capabilities.
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Affiliation(s)
- M. Belal Hossain
- Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali 3814, Bangladesh;
- School of Engineering and Built Environment, Griffith University, Brisbane, QLD 4111, Australia;
- Correspondence:
| | - Zobaer Masum
- Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali 3814, Bangladesh;
| | - M. Safiur Rahman
- Chemistry Division, Atomic Energy Centre Dhaka (AECD), Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh; (M.S.R.); (Y.N.J.); (B.A.B.)
| | - Jimmy Yu
- School of Engineering and Built Environment, Griffith University, Brisbane, QLD 4111, Australia;
| | - Md. Abu Noman
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China;
| | - Yeasmin N. Jolly
- Chemistry Division, Atomic Energy Centre Dhaka (AECD), Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh; (M.S.R.); (Y.N.J.); (B.A.B.)
| | - Bilkis A. Begum
- Chemistry Division, Atomic Energy Centre Dhaka (AECD), Bangladesh Atomic Energy Commission, Dhaka 1000, Bangladesh; (M.S.R.); (Y.N.J.); (B.A.B.)
| | - Bilal Ahamad Paray
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Takaomi Arai
- Environmental and Life Sciences Programme, Faculty of Science, University Brunei Darussalam, Jala Tungku Link, Gadong BE1410, Brunei;
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Hall LW, Anderson RD. Assessing annual, seasonal and spatial trends in copper sediment concentrations from a California agricultural waterbody. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2022; 57:386-395. [PMID: 35502608 DOI: 10.1080/10934529.2022.2069977] [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: 12/08/2021] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
The objective of this study was to assess annual, seasonal and spatial trends in copper sediment concentrations in an agricultural California stream (Cache Slough) based on sampling 12 sites over two seasons (spring and fall) in 2012, 2013 and 2014. The relationship between copper sediment concentrations and precipitation was also evaluated. The results from this study showed that copper sediment concentrations from Cache Slough ranging from 19 to 63 ug/g dw were similar to concentrations reported in European agricultural streams. Copper sediment concentrations were not reported to increase over time in this agricultural waterbody where copper was used as a fungicide. However, spatial differences in copper sediment concentrations were reported among sites with the highest concentrations in the middle waterbody section. Seasonal analysis showed no significant difference in copper sediment concentrations for both spring and fall for 2012 and 2013 but 2014 spring concentrations were statistically higher than fall concentrations when precipitation was lower than the two previous years. There were no statistically significant relationships between copper sediment concentrations and precipitation for the three-year period based on an analysis by year and season.
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Affiliation(s)
- Lenwood W Hall
- College of Agriculture and Natural Resources, Agricultural Experiment Station, Wye Research and Education Center, University of Maryland, Queenstown, Maryland, USA
| | - Ronald D Anderson
- College of Agriculture and Natural Resources, Agricultural Experiment Station, Wye Research and Education Center, University of Maryland, Queenstown, Maryland, USA
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Abeywardhana DC, Adikaram NM, Kularatne RKA. Are mangrove forests reliable sinks of heavy metals due to phytoremediation and other mechanisms? A Sri Lankan perspective. MARINE POLLUTION BULLETIN 2022; 177:113453. [PMID: 35278907 DOI: 10.1016/j.marpolbul.2022.113453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
We present a viewpoint regarding the prospects in Sri Lanka (a tropical island nation) to depend on mangroves in the remediation of heavy metal laden coastal environments. Sri Lanka has a rich array of lagoons and estuaries (total extent of 1580.17 km2) with ideal brackish water habitats to allow mangrove proliferation and for more restoration works. Furthermore, our estimates of Total Potential Ecological Risk (PER < 150) indicate that ecological risk from metallic contamination of coastal sediments is low, which means mangrove ecosystems would be ideal natural treatment systems for such low polluting environments (but as final cum tertiary treatment systems only). Mangroves are neither metal hyperaccumulators nor good phytoremediators (no ability to take up more than 5000 mg/kg dry weight of a given metal or exhibit a bioconcentration factor ≥ 1000), which means not very effective for high polluting environments.
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Affiliation(s)
| | - Nayana Madurya Adikaram
- Department of Physical Sciences, Faculty of Applied Sciences, South Eastern University, Sri Lanka
| | - Ranil Kavindra Asela Kularatne
- Department of Ecology, Environment and Evolution, La Trobe University, Bundoora Campus, Australia; Faculty of Graduate Studies, University of Colombo, Sri Lanka.
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Yap CK, Al-Mutairi KA. Ecological-Health Risk Assessments of Heavy Metals (Cu, Pb, and Zn) in Aquatic Sediments from the ASEAN-5 Emerging Developing Countries: A Review and Synthesis. BIOLOGY 2021; 11:biology11010007. [PMID: 35053006 PMCID: PMC8773003 DOI: 10.3390/biology11010007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 11/16/2022]
Abstract
The ASEAN-5 countries (Malaysia, Indonesia, Thailand, Philippines, and Vietnam) of the Association of Southeast Asian Nations as a group is an ever-increasing major economy developmental hub in Asia besides having wealthy natural resources. However, heavy metal (HM) pollution in the region is of increasing environmental and public concern. This study aimed to review and compile the concentrations of Cu, Pb, and Zn in the aquatic sediments of the ASEAN-5 countries published in the literature from 1981 to February 2021. The mean values of Cu, Pb, and Zn in aquatic sediments were elevated and localized in high human activity sites and compared to the earth's upper continental crust and reference values. Based on 176 reports from 113 publications, the ranges of concentrations (mg/kg dry weight) were 0.09-3080 for Cu, 0.37-4950 for Zn, and 0.07-2666 for Pb. The ecological risk (ER) values ranged from 0.02-1077 for Cu, 0.01-95.2 for Zn, and 0.02-784 for Pb. All reports (100%) showed the Zn ER values were categorized as being between 'low potential ecological risk' and 'considerable potential ecological risk'. Almost all Cu ER values (97.7%) also showed similar ranges of the above two risk categories except for a few reports. The highest Cu level (3080 mg/kg dry weight) was reported from a mine-tailing spill in Marinduque Island of the Philippines with 'very high ecological risk'. In addition, drainage sediments in the western part of Peninsular Malaysia were categorized as Cu 'high potential ecological risk'. Almost all reports (96%) showed Pb ER values categorized as between 'low potential ecological risk' and 'moderate potential ecological risk' except for a few reports. Six reports showed Pb ER values of 'considerable potential ecological risk', while one report from Semarang (Indonesia) showed Pb ER of 'very high ecological risk' (Pb level of 2666 mg/kg dry weight). For the ingestion and dermal contact pathways for sediments from the ASEAN-5 countries, all non-carcinogenic risk (NCR) values (HI values 1.0) for Cu, Pb, and Zn reflected no NCR. The ER and human health risk assessment of Cu, Pb, and Zn were compared in an integrative and accurate manner after we reassessed the HM data mentioned in the literature. The synthesis carried out in this review provided the basis for us to consider Cu, Pb, and Zn as being of localized elevated levels. This provided evidence for the ASEAN-5 group of countries to be considered as being a new socio-economic corridor. Beyond any reasonable doubt, an ever-increasing anthropogenic input of HMs is to be expected to a certain degree. We believe that this paper provides the most fundamental useful baseline data for the future management and sustainable development of the aquatic ecosystems in the region. Lastly, we claim that this review is currently the most up-to-date review on this topic in the literature.
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Affiliation(s)
- Chee Kong Yap
- Department of Biology, Faculty of Science, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
- Correspondence: or
| | - Khalid Awadh Al-Mutairi
- Department of Biology, Faculty of Science, University of Tabuk, P.O. Box 741, Tabuk 71491, Saudi Arabia;
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Castro S, Luiz-Silva W, Machado W, Valezio E. Mangrove sediments as long-term mercury sinks: Evidence from millennial to decadal time scales. MARINE POLLUTION BULLETIN 2021; 173:113031. [PMID: 34656863 DOI: 10.1016/j.marpolbul.2021.113031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/30/2021] [Accepted: 10/02/2021] [Indexed: 06/13/2023]
Abstract
The mercury (Hg) cycle in estuaries has been globally discussed, although Holocene deposition in mangrove sediments remains unknown. Herein, a sediment core from a mangrove system in southeastern Brazil was 14C-dated to evaluate millennial Hg deposition. The highest Hg concentrations (1010-2540 ng g-1) in surface sediments were explained by emissions from a chlor-alkali industry (1964 CE). However, Hg levels were also high in pre-industrial periods, associated to fine grain-size and algal organic deposition. Less anomalous Hg concentrations in bottom sediments indicate Holocene ages (~1940-3324 cal yr BP), potentially associated to Serra do Mar mountains weathering. This study reveals the capacity of mangrove to retain Hg over millennial time scales, acting as significant and long-term Hg sinks. Therefore, the use of Hg as an Anthropocene marker must be considered cautiously in coastal systems that act as Hg sinks in times when environmental changes were not caused by human activities.
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Affiliation(s)
- Sanny Castro
- Institute of Geosciences, University of Campinas, Campinas, Brazil.
| | | | - Wilson Machado
- Geochemistry Department, Fluminense Federal University, Niterói, Brazil
| | - Everton Valezio
- Institute of Geosciences, University of Campinas, Campinas, Brazil
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10
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do Nascimento Monte C, de Castro Rodrigues AP, de Freitas AR, Braz BF, Freire AS, Cordeiro RC, Santelli RE, Machado WTV. Ecological risks associated to trace metals of contaminated sediments from a densely urbanized tropical eutrophic estuary. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:767. [PMID: 34731306 DOI: 10.1007/s10661-021-09552-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
The sediment contamination by trace metals in coastal aquatic ecosystems is a worldwide environmental problem, since metals can be toxic, persistent, and bioaccumulated. In case of natural events, such as storms, or anthropogenic activities, like dredging, the sediment resuspension to the water column occurs and can solubilize metals, probably increasing their bioavailability and consequently the risk to aquatic life. This study evaluated the bioavailability on reactive trace metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn) in estuarine sediments from Iguaçu and Meriti Rivers, both in the drainage basin of Guanabara Bay (Rio de Janeiro, Brazil). Additionally, a discussion about the anthropogenic interference throughout time of six short sediments cores, calculating three different indexes (contamination factors, CF; potential ecological risk index for a single heavy metal, Eif for short; potential ecological risk, PERI) was performed. It was considered as reactive phase, the metal concentrations obtained using a weak acid extraction (in HCl 1 mol L-1 solution). Zn presented high concentrations after resuspension, being above effect range medium (ERM) (52.81 to 1337.4 mg kg-1). The CF indicated very high contamination degree for Cu (14.62 to 17.96) and Zn (27.80 to 35.85) for both rivers. The Eif for short presented higher risk to Cu and Zn for Iguaçu and Meriti rivers. PERI index classified Meriti River samples as severely contaminated (238.10 to 351.62).
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Affiliation(s)
- Christiane do Nascimento Monte
- Geochemistry Department, Universidade Federal Fluminense, Niterói, RJ, Brazil.
- Geology Departament, Universidade Federal Do Oeste Do Pará, Santarém, PA, Brazil.
| | - Ana Paula de Castro Rodrigues
- Geochemistry Department, Universidade Federal Fluminense, Niterói, RJ, Brazil
- Marine Biology Departament, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, RJ, Brazil
| | | | - Bernardo Ferreira Braz
- Analytical Chemistry Department, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, RJ, Brazil
| | - Aline Soares Freire
- Analytical Chemistry Department, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, RJ, Brazil
| | | | - Ricardo Erthal Santelli
- Analytical Chemistry Department, Universidade Federal Do Rio de Janeiro, Ilha Do Fundão, RJ, Brazil
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11
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Morita AKM, Ibelli-Bianco C, Anache JAA, Coutinho JV, Pelinson NS, Nobrega J, Rosalem LMP, Leite CMC, Niviadonski LM, Manastella C, Wendland E. Pollution threat to water and soil quality by dumpsites and non-sanitary landfills in Brazil: A review. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 131:163-176. [PMID: 34146955 DOI: 10.1016/j.wasman.2021.06.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 05/23/2021] [Accepted: 06/07/2021] [Indexed: 06/12/2023]
Abstract
This work presents an overview of environmental studies performed in areas affected by dumpsites and non-sanitary landfills in Brazil, focusing on physicochemical analysis of surface water, groundwater, and soils, as well as geophysical surveys. The objective was to identify the main contaminants found in these areas and to assess their environmental impact, guiding possible intervention measures, indicating the priority areas, and showing whether post-closure activities are mandatory. The results should support governmental actions, especially considering the recent approval of Brazil's new sanitation framework. The present review assessed 162 publications, which described 104 different municipal solid waste (MSW) disposal sites. The physicochemical parameters of analyzed surface water, groundwater, and soil samples were above Brazilian legislation levels in 74%, 70%, and 24% of the studies, respectively. The parameters more frequently above permissible levels were coliforms, biochemical oxygen demand, dissolved oxygen, and phosphorus for surface water; lead, coliforms, and iron for groundwater; copper, cadmium, lead, and zinc for soil. The results indicated that Brazilian dumpsites are causing negative impacts in surrounding soils and water resources, posing ecological and public health risks that persist even after the site's closure. Considering that this study provides only a reduced scenario, the dimension of this environmental problem in Brazil is noteworthy. Therefore, it is suggested that not only inadequate disposal is prohibited, but also efficient enforcement methods are adopted and aftercare is appropriately regulated in the country, making it obligatory to establish monitoring plans and implement mitigation techniques to avoid abandoning potentially contaminated areas.
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Affiliation(s)
- Alice K M Morita
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil; Technological University of Uruguay (UTEC), ITR CS, Durazno, Uruguay.
| | - Carolina Ibelli-Bianco
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil
| | - Jamil A A Anache
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil; Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil
| | - Jaqueline V Coutinho
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil
| | - Natalia S Pelinson
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil
| | - Juliana Nobrega
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil; Federal University of Goias (UFG), Goiânia, Brazil
| | - Livia M P Rosalem
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil
| | - Camila M C Leite
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil
| | - Leonardo M Niviadonski
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil
| | - Caroline Manastella
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil
| | - Edson Wendland
- São Carlos School of Engineering, University of São Paulo (EESC-USP), São Carlos, Brazil
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12
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Cordeiro RC, Monteiro FF, Santelli RE, Moreira LS, Figueiredo AG, Bidone ED, Pereira RS, Anjos LC, Meniconi MFG. Environmental and anthropic variabilities at Guanabara Bay (Brazil): A comparative perspective of metal depositions in different time scales during the last 5,500 yrs. CHEMOSPHERE 2021; 267:128895. [PMID: 33213881 DOI: 10.1016/j.chemosphere.2020.128895] [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: 06/20/2020] [Revised: 10/13/2020] [Accepted: 11/04/2020] [Indexed: 06/11/2023]
Abstract
The determination of age-dated metal sediment accumulation rates in a representative South American bay is able to portray the dimension of human impacts during the colonial occupation and industrial periods. Many studies have assessed metal distribution and chronology at Guanabara Bay, in Brazil. However, understanding natural variabilities associated to paleoclimatic changes and comparing these natural variabilities to anthropogenic processes are not well established to date. Accurate geochronological control integrating ages determined by 210Pb and 14C chronologies through an exponential spline fit model allowed for a precise definition of changes associated to the holocene marine transgression, as well as the colonial period, leading to intense land use changes, and the industrial period. The reference values of the system were defined based on their concentrations and the accumulation rates of ecotoxicologically important metals. Al, Ba, Fe, Cd, Cu, Cr, Li, Ni, Mn, Pb, Si, Ti, V, and Zn distributions were determined in a Guanabara Bay core (BG-28) by the EPA 3051 method. Elemental distribution profile assessment allowed for the identification of variabilities associated to weathering processes, predominantly of lithogenic origin, mainly for Al, Ba, Fe, Li, Si, and V. Weathering processes occurred simultaneously to land use changes in the drainage basin since the colonial period, at 400 cal yr BP, and during the industrial period, mainly after the 1960s, denoted by Cd, Cr, Cu, Mn, Pb and Zn increases. The highest average metal enrichment values metals associated to industrial processes reached 5.95, with 119.1-fold higher accumulation rates than the background accumulation values observed between 4200 and 500 cal yr BP.
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Affiliation(s)
- R C Cordeiro
- Programa de Geoquímica, Universidade Federal Fluminense, Niterói, RJ, Brazil.
| | - F F Monteiro
- Programa de Geoquímica, Universidade Federal Fluminense, Niterói, RJ, Brazil; Secretaria de Meio Ambiente da Cidade do Rio de Janeiro (SMAC), Rio de Janeiro, RJ, Brazil
| | - R E Santelli
- Programa de Geoquímica, Universidade Federal Fluminense, Niterói, RJ, Brazil; Departamento de Química Analítica. Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - L S Moreira
- Programa de Geoquímica, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - A G Figueiredo
- Departamento de Geologia e Geofísica - LAGEMAR, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - E D Bidone
- Programa de Geoquímica, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - R S Pereira
- Programa de Geoquímica, Universidade Federal Fluminense, Niterói, RJ, Brazil; Coordenação de Recursos Naturais e Estudos Ambientais, Instituto Brasileiro de Geografia e Estatística, Brazil
| | - L C Anjos
- Programa de Geoquímica, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - M F G Meniconi
- Research and Development Center (CENPES), Petroleo Brasileiro S.A. (PETROBRAS), Rio de Janeiro, Brazil
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13
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Duan D, Lan W, Chen F, Lei P, Zhang H, Ma J, Wei Y, Pan K. Neutral monosaccharides and their relationship to metal contamination in mangrove sediments. CHEMOSPHERE 2020; 251:126368. [PMID: 32171941 DOI: 10.1016/j.chemosphere.2020.126368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/25/2020] [Accepted: 02/26/2020] [Indexed: 06/10/2023]
Abstract
Mangrove sediments act as an important natural sink and a secondary source for trace metals. The main objective of this study was to investigate metal contamination and its relationship to mangrove-derived carbohydrates in mangrove sediments. Sixteen metals (Be, V, Cr, Co, Ni, Cu, Zn, Ga, As, Sr, Cd, Sn, Sb, Ba, Tl, and Pb)were analyzed in the surface sediments from four sites at different latitudes on the southeast coastline of China. The sedimentary organic matter was characterized by Rock-Eval pyrolysis, and the neutral sugars were examined by gas chromatograph mass spectrometry. Our results from the enrichment factors indicated that the mangrove sediments were no enriched by Ga, Sr, and Ba, minor enriched by Be, V, Cr, Co, Ni, Cu, Zn, As, Sn, Sb, Tl, and Pb, and moderate enriched by Cd. Litterfall was a major source of organic matter in the mangrove sediments, and the neutral sugars were mainly derived from this litterfall. Significant correlations were detected between the total organic carbon, pyrolytic parameters, neutral sugars, and enrichment factors of V, Cr, Co, Ni, Zn, and Cd, suggesting the input of neutral carbohydrates played an important role in enhancing the metal accumulation in the mangrove sediments. The mangrove litterfall itself was a major source of metals for the sediments, and the mangrove-derived organic matter enhanced the sediment's metal accumulation.
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Affiliation(s)
- Dandan Duan
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Wenlu Lan
- Marine Environmental Monitoring Center of Guangxi, Beihai, 536000, China
| | - Fengyuan Chen
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Pei Lei
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Hao Zhang
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Jie Ma
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Yang Wei
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Ke Pan
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China.
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14
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Fernández-Cadena JC, Ruíz-Fernández PS, Fernández-Ronquillo TE, Díez B, Trefault N, Andrade S, De la Iglesia R. Detection of sentinel bacteria in mangrove sediments contaminated with heavy metals. MARINE POLLUTION BULLETIN 2020; 150:110701. [PMID: 31796235 DOI: 10.1016/j.marpolbul.2019.110701] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 10/29/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Mangroves in the Northwest Coast of South America are contaminated with heavy metals due to wastewater discharges from industries, affecting the biota from this environment. However, bacteria proliferate in these harsh environmental conditions becoming possible sentinel of these contaminations. In this study, bacterial community composition was analyzed by throughput sequencing of the 16S rRNA gene from polluted and pristine mangrove sediments affected by marked differences in heavy metal concentrations. Core bacteria were dominated by Proteobacteria, Firmicutes, and Bacteroidetes phyla, with strong differences between sites at class and genus levels, correlated with metal levels. Increment of abundance on specific OTUs were associated with either elevated or decreased concentrations of metals and with the sulfur cycle. The abundance of Sulfurovum lithotrophicum, Leptolinea tardivitalis, Desulfococcus multivorans and Aminobacterium colombiense increases when metals rise. On contrary, Bacillus stamsii, Nioella nitrareducens and Clostridiisalibacter paucivorans abundance increases when metal levels are reduced. We propose these OTUs as bacterial sentinels, whose abundance can help monitor the restoration programs of contaminated mangrove sediments in the future.
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Affiliation(s)
| | - P S Ruíz-Fernández
- Instituto Milenio de Oceanografía, Universidad de Concepción, Concepción, Chile
| | | | - B Díez
- Departamento de Genética Molecular y Microbiología. Facultad de Ciencias Biológicas. Pontificia Universidad Católica de Chile. Santiago, Chile
| | - N Trefault
- Centro GEMA- Genómica, Ecología y Medio Ambiente. Facultad de Ciencias. Universidad Mayor, Chile
| | - S Andrade
- Centro GEMA- Genómica, Ecología y Medio Ambiente. Facultad de Ciencias. Universidad Mayor, Chile
| | - R De la Iglesia
- Departamento de Genética Molecular y Microbiología. Facultad de Ciencias Biológicas. Pontificia Universidad Católica de Chile. Santiago, Chile.
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15
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Niu Z, Cao Y, Zhao W, Li R. Distribution and assessment of mercury (Hg) in surface sediments of Futian mangrove forest, China. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2019; 41:125-134. [PMID: 30003448 DOI: 10.1007/s10653-018-0151-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 07/06/2018] [Indexed: 06/08/2023]
Abstract
To investigate the distribution of mercury (Hg) in Futian mangrove wetland, surface sediments from land to sea were collected, including Kandelia obovata, Avicennia marina, Sonneratia caseolaris, and mud flat. The ecological risks of Hg in sediments were also assessed. The results showed that mangrove forests acidified sediments and promoted the accumulation of salinity and organic matter in sediments. Hg concentrations in both mangrove forests (154.7-218.4 ng g-1) and mud flat sediments (226.3-251.9 ng g-1) surpassed the background level (71.0 ng g-1). Furthermore, Hg concentrations in sediments decreased gradually from sea to land at all depth. From the bottom to the top layer sediment, Hg concentration decreased gradually in the sediments near land, while it kept vertically stable in the coastal area, indicating its pollution may mainly come from the coastal area rather than the land to some extent. Although the mean values of geo-accumulation indexes revealed uncontaminated to moderately contaminated levels, the mean values of potential ecological risk coefficients revealed considerable ecological risk of Hg to the environment, deserving further attention.
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Affiliation(s)
- Zhiyuan Niu
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China
| | - Ye Cao
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China
| | - Wenli Zhao
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China
| | - Ruili Li
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China.
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16
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Monte C, Cesar R, Rodrigues AP, Siqueira D, Serrano A, Abreu L, Teixeira M, Vezzone M, Polivanov H, Castilhos Z, de Campos T, Machado GGM, Souza WF, Machado W. Spatial variability and seasonal toxicity of dredged sediments from Guanabara Bay (Rio de Janeiro, Brazil): acute effects on earthworms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:34496-34509. [PMID: 30311116 DOI: 10.1007/s11356-018-3338-7] [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: 03/26/2018] [Accepted: 09/26/2018] [Indexed: 06/08/2023]
Abstract
The toxicity of dredged sediments from Guanabara Bay (Rio de Janeiro, Brazil) was evaluated using acute bioassays with Eisenia andrei and metal determination. The sediments were collected in August 2014 (winter) and February 2015 (summer) and in five areas distributed along the Bay: Port of Rio de Janeiro, Port of Niterói, Meriti River mouth, Iguaçu River mouth, and the Environmental Protection Area (APA) of Guapimirim. The sediments were mixed with a ferralsol (a representative Brazilian tropical soil) in proportions varying between 0 (pure soil) and 30%. The acute bioassays with E. andrei followed a standard protocol (ISO 11268-2:2012). Total metal determination in the sediments was performed by ICP-OES. The medium lethal earthworm concentration (LC50) was estimated through PriProbit analysis. The sediments from the APA of Guapimirim, which is a control area at the Guanabara Bay, were the only ones whose total metal concentrations were in agreement with the limits established by Brazilian law for land disposal of dredged sediments. However, the sediments collected in the APA of Guapimirim were the most toxic ones among the study areas due to very high contents of salts in these materials. Winter sediments were generally more toxic compared to the summer ones due to the increase of metal concentrations and salt precipitation to bottom sediments during the winter. The exceptions were (i) the sediments from APA of Guapimirim, where the toxicity in the summer (LC50 = 3.99%) and winter (LC50 = 4.60%) were relatively similar to each other, since the toxicity is linked to salt in excess; and (ii) the Iguaçu River mouth, where the presence of mangrove areas might be associated with the filtering of pollution sources (winter LC50 = 12.67%; summer LC50 = 11.58%). In the Port of Rio de Janeiro, LC50 obtained in the winter (7.30%) was almost three times lower than that found in the summer (19.64%). The sediments from Meriti River mouth showed the highest total metal concentrations, were the most toxic sediments among the study areas (excluding the APA of Guapimirim), and its winter LC50 (6.64%) was almost twice lower than that obtained in the summer (12.55%). By following the same tendency, summer LC50 (17.52%) found for the sediment collected in the Port of Niterói was also higher than the value found in the winter (12.34%). Finally, the dredged sediments from Guanabara Bay were toxic to earthworms in mixtures with pure ferralsol and winter samples were generally more toxic than the summer ones, in agreement with the increase of metal and salt concentrations during the winter.
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Affiliation(s)
- Christiane Monte
- UFF, Department of Geochemistry, Fluminense Federal University, Outeiro São João Baptista, s/n. Centro, Niterói, RJ, Brazil.
- UFOPA, Department of Geology, Federal University of Western Pará, Av. Vera Paz, s/n. Salé, Santarém, PA, Brazil.
| | - Ricardo Cesar
- UFRJ, CCMN-Geosciences Institute. Department of Geography, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 274-Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Ana Paula Rodrigues
- UFF, Department of Geochemistry, Fluminense Federal University, Outeiro São João Baptista, s/n. Centro, Niterói, RJ, Brazil
| | - Danielle Siqueira
- UFRJ, CCMN-Geosciences Institute. Department of Geography, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 274-Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Aline Serrano
- UFRJ, CCMN-Geosciences Institute. Department of Geography, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 274-Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Leticia Abreu
- UFRJ, CCMN-Geosciences Institute. Department of Geography, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 274-Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Matheus Teixeira
- UFRJ, CCMN-Geosciences Institute. Department of Geography, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 274-Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Mariana Vezzone
- UFRJ, CCMN-Geosciences Institute. Department of Geography, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 274-Cidade Universitária, Rio de Janeiro, RJ, Brazil
- UFRJ. CCMN-Geosciences Institute. Department of Geology, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 274-Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Helena Polivanov
- UFRJ. CCMN-Geosciences Institute. Department of Geology, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 274-Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Zuleica Castilhos
- Centre for Mineral Technology, CETEM/MCTI, Av. Pedro Calmon, 900. Cidade Universitária, Rio de Janeiro, RJ, Brazil
| | - Tácio de Campos
- PUC-Rio, Department of Civil Engineering, Pontifical Catholic University of Rio de Janeiro, Rua Marquês de São Vicente 225/301-L, Gávea, Rio de Janeiro, RJ, 22453-900, Brazil
| | - Glaucia G M Machado
- National Institute of Technology, INT. Analytical Chemistry Division, Av. Venezuela, 82, sala 210, Praça Mauá, Rio de Janeiro, RJ, 20081-312, Brazil
| | - Weber F Souza
- National Institute of Technology, INT. Analytical Chemistry Division, Av. Venezuela, 82, sala 210, Praça Mauá, Rio de Janeiro, RJ, 20081-312, Brazil
| | - Wilson Machado
- UFF, Department of Geochemistry, Fluminense Federal University, Outeiro São João Baptista, s/n. Centro, Niterói, RJ, Brazil
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17
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Islam SMDU, Bhuiyan MAH. Sundarbans mangrove forest of Bangladesh: causes of degradation and sustainable management options. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s42398-018-0018-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Quintana GC, Mirlean N. Groundwater Contamination by Mercury from the Aforetime Carroting Practice. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2018; 100:839-842. [PMID: 29619609 DOI: 10.1007/s00128-018-2333-5] [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: 11/14/2017] [Accepted: 03/24/2018] [Indexed: 06/08/2023]
Abstract
In the southernmost Brazilian city of Rio Grande, the chemical treatment of animal fur named carroting was performed between the eighteenth and twentieth century. This type of industry has led to contamination of urban soil with mercury down to the groundwater level. The present study has revealed that the dissolved mercury concentrations in groundwater in the mercury contaminated areas was up to 13 times higher than that found in the reference site. The association between SO42-, Ca2+ and dissolved mercury indicate that urban man-made grounds composed by soil, construction and demolition waste, urban rubbish and mud contaminated by "carroting mercury" serve as a source of this metal to groundwater. Despite the high level of contamination, mercury concentrations found in groundwater were below the permissible level established for potable water. Most of the dissolved mercury was chemically combined, probably with organic matter.
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Affiliation(s)
- G C Quintana
- Oceanography Institute, Federal University of Rio Grande, Av. Itália km 08 Campus Carreiros, 96201-900, Rio Grande, RS, Brazil.
| | - N Mirlean
- Oceanography Institute, Federal University of Rio Grande, Av. Itália km 08 Campus Carreiros, 96201-900, Rio Grande, RS, Brazil
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19
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Kulkarni R, Deobagkar D, Zinjarde S. Metals in mangrove ecosystems and associated biota: A global perspective. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 153:215-228. [PMID: 29448175 DOI: 10.1016/j.ecoenv.2018.02.021] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 01/05/2018] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
Mangrove forests prevalent along the intertidal regions of tropical and sub-tropical coastlines are inimitable and dynamic ecosystems. They protect and stabilize coastal areas from deleterious consequences of natural disasters such as hurricanes and tsunamis. Although there are reviews on ecological aspects, industrial uses of mangrove-associated microorganisms and occurrence of pollutants in a region-specific manner, there is no exclusive review detailing the incidence of metals in mangrove sediments and associated biota in these ecosystems on a global level. In this review, mangrove forests have been classified in a continent-wise manner. Most of the investigations detail the distribution of metals such as zinc, chromium, arsenic, copper, cobalt, manganese, nickel, lead and mercury although in some cases levels of vanadium, strontium, zirconium and uranium have also been studied. Seasonal, tidal, marine, riverine, and terrestrial components are seen to influence occurrence, speciation, bioavailability and fate of metals in these ecosystems. In most of the cases, associated plants and animals also accumulate metals to different extents and are of ecotoxicological relevance. Levels of metals vary in a region specific manner and there is disparity in the pollution status of different mangrove areas. Protecting these vulnerable ecosystems from metal pollutants is important from environmental safety point of view.
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Affiliation(s)
- Rasika Kulkarni
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Pune 411007, India
| | - Deepti Deobagkar
- Indian Space Research Organization Cell, Savitribai Phule Pune University, Pune 411007, India
| | - Smita Zinjarde
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Pune 411007, India; Department of Microbiology, Savitribai Phule Pune University, Pune 411007, India.
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20
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Influence of biological activity on 65Zn and 109Cd removal from tidal water by chronically-polluted mangrove sediments. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5796-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Chowdhury R, Favas PJC, Jonathan MP, Venkatachalam P, Raja P, Sarkar SK. Bioremoval of trace metals from rhizosediment by mangrove plants in Indian Sundarban Wetland. MARINE POLLUTION BULLETIN 2017; 124:1078-1088. [PMID: 28187966 DOI: 10.1016/j.marpolbul.2017.01.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 01/18/2017] [Accepted: 01/24/2017] [Indexed: 06/06/2023]
Abstract
The study accentuated the trace metal accumulation and distribution pattern in individual organs of 13 native mangrove plants along with rhizosediments in the Indian Sundarban Wetland. Enrichment of the essential micronutrients (Mn, Fe, Zn, Cu, Co, Ni) was recorded in all plant organs in comparison to non-essential ones, such as Cr, As, Pb, Cd, Hg. Trunk bark and root/pneumatophore showed maximum metal accumulation efficiency. Rhizosediment recorded manifold increase for most of the trace metals than plant tissue, with the following descending order: Fe>Mn>Zn>Cu>Pb>Ni>Cr>Co>As>Cd>Hg. Concentrations of Cu, Ni, Pb and Hg were found to exceed prescribed sediment quality guidelines (SQGs) indicating adverse effect on adjacent biota. Both index of geoaccumulation (Igeo) and enrichment factor (EF) also indicated anthropogenic contamination. Based on high (>1) translocation factor (TF) and bioconcentration factor (BCF) values Sonneratiaapetala and Avicenniaofficinalis could be considered as potential accumulators, of trace metals.
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Affiliation(s)
- Ranju Chowdhury
- Department of Marine Science, University of Calcutta, 35, Ballygunge Circular Road, Calcutta 700019, West Bengal, India.
| | - Paulo J C Favas
- University of Trás-os-Montes e Alto Douro, UTAD, School of Life Sciences and the Environment, Quinta de Prados, 5000-801 Vila Real, Portugal; MARE - Marine and Environmental Sciences Centre, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - M P Jonathan
- Centro Interdisciplinario de Investigaciones Estudios sobre Medio, Ambiente Desarrollo (CIIEMAD), Instituto Polit'ecnicoNacional (IPN), Calle de Junio de Barrio la Laguna Ticom'an C.P., Del. Gustavo A. Madero, Mexico, D.F., Mexico
| | | | - P Raja
- ICAR-Indian Institute of Soil & Water Conservation, Fernhill, Udhagamandalam 643004, Tamil Nadu, India
| | - Santosh Kumar Sarkar
- Department of Marine Science, University of Calcutta, 35, Ballygunge Circular Road, Calcutta 700019, West Bengal, India
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Otero XL, Méndez A, Nóbrega GN, Ferreira TO, Meléndez W, Macías F. High heterogeneity in soil composition and quality in different mangrove forests of Venezuela. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:511. [PMID: 28924917 DOI: 10.1007/s10661-017-6228-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Accepted: 09/12/2017] [Indexed: 06/07/2023]
Abstract
Mangrove forests play an important role in biogeochemical cycles of metals, nutrients, and C in coastal ecosystems. However, these functions could be strongly affected by the mangrove soil degradation. In this study, we performed an intensive sampling characterizing mangrove soils under different types of environment (lagoon/gulf) and vegetation (Rhizophora/Avicennia/dead mangrove) in the Venezuelan coast. To better understand the spatial heterogeneity of the composition and characteristics of the soils, a wide range of the soil attributes were analyzed. In general, the soils were anoxic (Eh < 200 mV), with a neutral pH and low concentration in toxic metals; nevertheless, they varied widely in the soil and its quality-defining parameters (e.g., clay contents, total organic carbon, Fe, Al, toxic trace metals). It is noteworthy that the mangroves presented a low FePyrite content due to a limitation in the Fe oxyhydroxide contents, especially in soils with higher organic C content (TOC > 15%). Finally, the dead mangrove showed significantly lower amounts of TOC and fibers (in comparison to the well-preserved mangrove forest), which indicates that the C pools in mangrove soils are highly sensitive also to natural impact, such as ENSO.
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Affiliation(s)
- X L Otero
- Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| | - A Méndez
- Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - G N Nóbrega
- Departamento de Ciência do Solo, Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil
| | - T O Ferreira
- Departamento de Ciência do Solo, Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil
| | - W Meléndez
- Instituto de Ciencias de la Tierra, Facultad de Ciencias, Universidad Central de Venezuela, Caracas, Venezuela
| | - F Macías
- Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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Liu J, Ma K, Qu L. Relative influence of sediment variables on mangrove community assembly in Leizhou Peninsula, China. MARINE POLLUTION BULLETIN 2017; 117:429-435. [PMID: 28209362 DOI: 10.1016/j.marpolbul.2017.02.003] [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: 11/28/2016] [Revised: 02/03/2017] [Accepted: 02/04/2017] [Indexed: 06/06/2023]
Abstract
Effective conservation of mangroves requires a complete understanding of vegetation structure and identification of the variables most important to their assembly. Using canonical correspondence analysis (CCA) combined with variation partition, we determined the independent and joint effects of sediment variables, including physicochemical characteristics and heavy metals, on mangrove community assemblies in the overstory and understory in Leizhou Peninsula, China. The results indicated that the contributions of sediment physicochemical variables to community assembly were greater than were those of heavy metals, particularly in overstory vegetation. However, the independent contributions of heavy metals were higher in understory mangrove vegetation than in the overstory. The TOC, TP, and salinity of the sediment, distance from the coastline, and concentration of As were limiting factors for mangrove assembly in overstory vegetation, while understory vegetation may be affected to a greater degree by the distance from the coastline, electrical conductivity, and concentration of As and Pb in the sediment.
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Affiliation(s)
- Jing Liu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Institute of Plant Nutrition and Resources, Beijing Academy of Agriculture and Forestry Sciences, 100091, China
| | - Keming Ma
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Laiye Qu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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Huang Y, Ou D, Chen S, Chen B, Liu W, Bai R, Chen G. Inhibition effect of zinc in wastewater on the N 2O emission from coastal loam soils. MARINE POLLUTION BULLETIN 2017; 116:434-439. [PMID: 28126396 DOI: 10.1016/j.marpolbul.2017.01.030] [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: 09/08/2016] [Revised: 01/12/2017] [Accepted: 01/16/2017] [Indexed: 06/06/2023]
Abstract
The effects of zinc (Zn) on nitrous oxide (N2O) fluxes from coastal loam soil and the abundances of soil nitrifier and denitrifier were studied in a tidal microcosm receiving livestock wastewater with different Zn levels. Soil N2O emission significantly increased due to discharge of wastewater rich in ammonia (NH4+-N) while the continuous measurements of gas flux showed a durative reduction in N2O flux by high Zn input (40mgL-1) during the low tide period. Soil inorganic nitrogen concentrations increased at the end of the experiment and even more soil NH4+-N was measured in the high-Zn-level treatment, indicating an inhibition of ammonia oxidation by Zn input. Quantitative PCR of soil amoA, narG and nirK genes encoding ammonia monooxygenase, nitrate reductase and nitrite reductase, respectively, showed that the microbial abundances involved in these metabolisms were neither affected by wastewater discharge nor Zn contamination.
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Affiliation(s)
- Yan Huang
- Marine Biology Institute, Shantou University, Shantou, Guangdong, China; Third Institute of Oceanography, State Oceanic Administration, Xiamen, Fujian, China
| | - Danyun Ou
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, Fujian, China
| | - Shunyang Chen
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, Fujian, China
| | - Bin Chen
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, Fujian, China
| | - Wenhua Liu
- Marine Biology Institute, Shantou University, Shantou, Guangdong, China
| | - Renao Bai
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, Fujian, China
| | - Guangcheng Chen
- Third Institute of Oceanography, State Oceanic Administration, Xiamen, Fujian, China.
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25
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Sun L, Lu B, Yuan D, Hao W, Zheng Y. Variations in the isotopic composition of stable mercury isotopes in typical mangrove plants of the Jiulong estuary, SE China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:1459-1468. [PMID: 27783251 DOI: 10.1007/s11356-016-7933-1] [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: 07/07/2016] [Accepted: 10/17/2016] [Indexed: 06/06/2023]
Abstract
Variations in the composition of stable isotopes of mercury contained in tissues (root, stem, leaf, and hypocotyl or flower) of three typical mangrove plants (Kandelia candel, Aegiceras corniculata, and Bruguiera gymnorhiza), collected from the mangrove wetland of Jiulong estuary, SE China, were used to investigate the sources and transformation of mercury in the mangrove plants. Tissue samples from the plants were digested and mercury in the solution was pre-concentrated with purge-trap method and then analyzed by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS). The results showed that the mass dependent fractionation (MDF) of mercury ranged from -2.67 to -0.87 ‰ for δ 202Hg while the mass independent fractionation (MIF) of mercury isotopes ranged from -0.16 to 0.09 and -0.19 to 0.05 ‰ for Δ199Hg and Δ201Hg, respectively, relative to the standard NIST SRM 3133. The ratio of Δ199Hg/Δ201Hg was 0.991, indicating that the mercury had been photo-reduced before being accumulated in mangrove plants. Analyses of the data from MIF studies revealed that the major portion of the mercury measured in leaves (∼90 %) originated from the atmosphere while the source of over half of the mercury present in roots was the surficial sediment. This study, the first of its kind investigating the variations in isotopic composition of mercury in the tissues of mangrove plants, could be helpful to identify the source of mercury contamination in mangroves and understand the biogeochemical cycle of mercury in the estuarine mangrove wetlands.
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Affiliation(s)
- Lumin Sun
- Key Laboratory of Estuarine Ecological Security and Environmental Health, Fujian Province University, Tan Kah Kee College, Xiamen University, Zhangzhou, 363105, China.
- Key Laboratory of the Coastal and Wetland Ecosystems, Ministry of Education, Xiamen University, Xiamen, 361102, China.
| | - Bingyan Lu
- Key Laboratory of the Coastal and Wetland Ecosystems, Ministry of Education, Xiamen University, Xiamen, 361102, China
| | - Dongxing Yuan
- Key Laboratory of the Coastal and Wetland Ecosystems, Ministry of Education, Xiamen University, Xiamen, 361102, China
| | - Wenbo Hao
- Key Laboratory of Estuarine Ecological Security and Environmental Health, Fujian Province University, Tan Kah Kee College, Xiamen University, Zhangzhou, 363105, China
| | - Ying Zheng
- Key Laboratory of Estuarine Ecological Security and Environmental Health, Fujian Province University, Tan Kah Kee College, Xiamen University, Zhangzhou, 363105, China
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26
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Rizzini Ansari N, Fernandez MA, Brito JL, Vidal LG, de Andrade Costa ES, Malm O. Assessing mercury contamination in a tropical coastal system using the mussel Perna perna and the sea anemone Bunodosoma caissarum. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:679. [PMID: 27864775 DOI: 10.1007/s10661-016-5683-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 11/07/2016] [Indexed: 06/06/2023]
Abstract
Total mercury concentrations in the mussel Perna perna and the sea anemone Bunodosoma caissarum were determined to assess Hg contamination in Guanabara Bay, Rio de Janeiro, Brazil, and an adjacent sea area. Concentrations in the tissues of these species were compared. Average total mercury concentrations ranged from 3.54 to 21.01 μg kg-1 (wet wt.) in P. perna and from 4.51 to 23.19 μg kg-1 (wet wt.) for B. caissarum. Concentrations varied according to the sampling stations. Distribution of concentrations for both species was similar along the sampling stations, and a significant correlation was observed. Results suggest that B. caissarum could be a suitable biomonitor species for mercury contamination in the study area and could be used as a complementary species for monitoring studies. Further research is, however, needed to assess how environmental conditions and other variables affect Hg concentrations in B. caissarum.
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Affiliation(s)
- Nafisa Rizzini Ansari
- Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524/401 8E, 20550-013, Maracanã, Rio de Janeiro, Brazil.
| | - Marcos Antônio Fernandez
- Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524/401 8E, 20550-013, Maracanã, Rio de Janeiro, Brazil
| | - José Lailson Brito
- Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524/401 8E, 20550-013, Maracanã, Rio de Janeiro, Brazil
| | - Lara Gama Vidal
- Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524/401 8E, 20550-013, Maracanã, Rio de Janeiro, Brazil
| | - Erika Silva de Andrade Costa
- Faculdade de Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524/401 8E, 20550-013, Maracanã, Rio de Janeiro, Brazil
| | - Olaf Malm
- Instituto de Biofísica, Universidade Federal do Rio de Janeiro, Bloco G/CCS, 21941-902, Ilha do Fundão, Rio de Janeiro, Brazil
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27
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Correia RRS, Guimarães JRD. Impacts of crab bioturbation and local pollution on sulfate reduction, Hg distribution and methylation in mangrove sediments, Rio de Janeiro, Brazil. MARINE POLLUTION BULLETIN 2016; 109:453-460. [PMID: 27269386 DOI: 10.1016/j.marpolbul.2016.05.028] [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: 01/07/2016] [Revised: 05/09/2016] [Accepted: 05/14/2016] [Indexed: 06/06/2023]
Abstract
Mercury (Hg) and methylmercury (MeHg) are highly toxic and poorly studied in mangroves. Burrowing Uca crabs change sediment topography and biogeochemistry and thus may affect Hg distribution and MeHg formation. We studied added (203)Hg distribution, Me(203)Hg formation and sulfate reduction rates (SRR) in sediment aquariums containing Uca leptodactyla; and analyzed profiles of Me(203)Hg formation and SRR in sediment cores from two mangroves with distinct environmental impacts. MeHg formation and SRR were higher in the top (≤6cm) sediment and there was no significant difference in Hg methylation in more or less impacted mangroves. In aquariums, crab bioturbation favored Hg retention in the sediment. In the treatment without crabs, Hg volatilization and water Hg concentrations were higher. Hg methylation was higher in bioturbated aquariums but SRR were similar in both treatments. These findings suggest that bioturbating activity favors Hg retention in sediment but also promotes MeHg formation near the surface.
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Affiliation(s)
- Raquel Rose Silva Correia
- Laboratório de Traçadores Wolfgang C. Pfeiffer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Bloco G/CCS/Ilha do Fundão, Rio de Janeiro (RJ), CEP: 21941-902, Brazil.
| | - Jean Remy Davée Guimarães
- Laboratório de Traçadores Wolfgang C. Pfeiffer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Bloco G/CCS/Ilha do Fundão, Rio de Janeiro (RJ), CEP: 21941-902, Brazil.
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28
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Machado W, Sanders CJ, Santos IR, Sanders LM, Silva-Filho EV, Luiz-Silva W. Mercury dilution by autochthonous organic matter in a fertilized mangrove wetland. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 213:30-35. [PMID: 26874872 DOI: 10.1016/j.envpol.2016.02.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/29/2016] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
A dated sediment core from a highly-fertilized mangrove wetland located in Cubatão (SE Brazil) presented a negative correlation between mercury (Hg) and organic carbon contents. This is an unusual result for a metal with well-known affinity to organic matter. A dilution of Hg concentrations by autochthonous organic matter explained this observation, as revealed by carbon stable isotopes signatures (δ(13)C). Mercury dilution by the predominant mangrove-derived organic matter counterbalanced the positive influences of algal-derived organic matter and clay contents on Hg levels, suggesting that deleterious effects of Hg may be attenuated. Considering the current paradigm on the positive effect of organic matter on Hg concentrations in coastal sediments and the expected increase in mangrove organic matter burial due to natural and anthropogenic stimulations of primary production, predictions on the influences of organic matter on Hg accumulation in mangrove wetlands deserve caution.
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Affiliation(s)
- Wilson Machado
- Departamento de Geoquímica, Instituto de Química, Universidade Federal Fluminense, Niterói, RJ, 24020-150, Brazil.
| | - Christian J Sanders
- National Marine Science Centre, School of Environment, Science and Engineering, Southern Cross University, P.O. Box 157, Coffs Harbour, NSW, 2540, Australia
| | - Isaac R Santos
- National Marine Science Centre, School of Environment, Science and Engineering, Southern Cross University, P.O. Box 157, Coffs Harbour, NSW, 2540, Australia
| | - Luciana M Sanders
- Southern Cross Geoscience, School of Environment, Science and Engineering, Southern Cross University, Lismore, NSW, 2480, Australia
| | - Emmanoel V Silva-Filho
- Departamento de Geoquímica, Instituto de Química, Universidade Federal Fluminense, Niterói, RJ, 24020-150, Brazil
| | - Wanilson Luiz-Silva
- Instituto de Geociências, Universidade Estadual de Campinas, Campinas, SP, 13083-970, Brazil
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29
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Kumar A, Ramanathan A, Prasad MBK, Datta D, Kumar M, Sappal SM. Distribution, enrichment, and potential toxicity of trace metals in the surface sediments of Sundarban mangrove ecosystem, Bangladesh: a baseline study before Sundarban oil spill of December, 2014. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:8985-8999. [PMID: 26822216 DOI: 10.1007/s11356-016-6086-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 01/11/2016] [Indexed: 06/05/2023]
Abstract
The distribution, enrichment, and ecotoxicity potential of Bangladesh part of Sundarban mangrove was investigated for eight trace metals (As, Cd, Cr, Cu, Fe, Mn, Pb, and Zn) using sediment quality assessment indices. The average concentration of trace metals in the sediments exceeded the crustal abundance suggesting sources other than natural in origin. Additionally, the trace metals profile may be a reflection of socio-economic development in the vicinity of Sundarban which further attributes trace metals abundance to the anthropogenic inputs. A total of eleven surficial sediment samples were collected along a vertical transect along the freshwater-saline water gradient. The sediment samples were digested using EPA 3051 method and were analyzed on ICP-MS. Geo-accumulation index suggests moderately polluted sediment quality with respect to Ni and As and background concentrations for Al, Fe, Mn, Cu, Zn, Pb, Co, As, and Cd. Contamination factor analysis suggested low contamination by Zn, Cr, Co, and Cd, moderate by Fe, Mn, Cu, and Pb while Ni and As show considerable and high contamination, respectively. Enrichment factors for Ni, Pb, and As suggests high contamination from either biota or anthropogenic inputs besides natural enrichment. As per the three sediment quality guidelines, Fe, Mn, Cu, Ni, Co, and As would be more of a concern with respect to ecotoxicological risk in the Sundarban mangroves. The correlation between various physiochemical variables and trace metals suggested significant role of fine grained particles (clay) in trace metal distribution whereas owing to low organic carbon content in the region the organic complexation may not be playing significant role in trace metal distribution in the Sundarban mangroves.
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Affiliation(s)
- Alok Kumar
- Department of Environmental Science, Central University of Rajasthan, Kishangarh, Ajmer, 305817, Rajasthan, India
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Al Ramanathan
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - M B K Prasad
- ESSIC, University of Maryland, College Park, MD, 20740, USA
| | - Dilip Datta
- Environmental Science Discipline, Khulna University, Khulna, 9208, Bangladesh
| | - Manoj Kumar
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Swati Mohan Sappal
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
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30
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Souza IS, Araujo GS, Cruz ACF, Fonseca TG, Camargo JBDA, Medeiros GF, Abessa DMS. Using an integrated approach to assess the sediment quality of an estuary from the semi-arid coast of Brazil. MARINE POLLUTION BULLETIN 2016; 104:70-82. [PMID: 26892205 DOI: 10.1016/j.marpolbul.2016.02.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 01/08/2016] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
The Jundiaí-Potengi Estuary (JPE) on the semi-arid coast of Brazil is influenced by multiple sources of pollution. Sediment quality at 10 JPE sites was evaluated through an integrated approach. Rainy and dry seasons were considered. Collected sediments were analyzed for texture, metal, nitrogen, phosphorus concentrations, and toxicity to invertebrates. Geochemical and ecotoxicological data were integrated using qualitative approaches and multivariate techniques. We observed decreased sediment quality in both seasons, particularly in the mid-estuary. In the dry season, the contamination-toxicity relationship was clearer, as hydrological conditions favor contaminant retention within the estuary. Rainy season conditions were found to be worse, since stormwater drainage from agricultural and urban areas carries the contamination into the estuary. Because of the contamination sources and dissolved and particle-bound metal transport, contamination and toxicity did not correlate as clearly in the rainy season. The results suggest that unmeasured contaminants are contributing to JPE sediment degradation.
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Affiliation(s)
- Ivanildo Surini Souza
- Ceará Federal University - UFC, Institute of Marine Sciences, Av. Abolição, 3207, Fortaleza, CE 60165-081, Brazil; Rio Grande do Norte Federal Institute for Science and Technology Education - IFRN, Av. Senador Salgado Filho, 1559, Natal, RN 59015-000, Brazil.
| | - Giuliana Seraphim Araujo
- São Paulo State University - UNESP, Praça Infante Dom Henrique, s/n., São Vicente, SP 11330-900, Brazil
| | - Ana Carolina Feitosa Cruz
- São Paulo State University - UNESP, Praça Infante Dom Henrique, s/n., São Vicente, SP 11330-900, Brazil
| | - Tainá Garcia Fonseca
- São Paulo State University - UNESP, Praça Infante Dom Henrique, s/n., São Vicente, SP 11330-900, Brazil; Centre for Marine and Environmental Research - CIMA, Faculty of Sciences and Technology (FCT), University of Algarve, Campus de Gambelas, Faro 8005-139, Portugal
| | | | - Guilherme Fulgêncio Medeiros
- Federal University of Rio Grande do Norte - UFRN, Campus Universitário Lagoa Nova, 1524, Natal, RN 59078-970, Brazil
| | - Denis M S Abessa
- Ceará Federal University - UFC, Institute of Marine Sciences, Av. Abolição, 3207, Fortaleza, CE 60165-081, Brazil; São Paulo State University - UNESP, Praça Infante Dom Henrique, s/n., São Vicente, SP 11330-900, Brazil
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32
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Li R, Xu H, Chai M, Qiu GY. Distribution and accumulation of mercury and copper in mangrove sediments in Shenzhen, the world's most rapid urbanized city. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:87. [PMID: 26762317 DOI: 10.1007/s10661-016-5103-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 01/06/2016] [Indexed: 06/05/2023]
Abstract
To investigate the influence of mangrove forest on heavy metal accumulation and storage in intertidal sediments, core sediments from natural mangrove, restored mangrove, and adjacent mud flat spanning the intertidal zone along the south coastline of the most heavily urbanized Deep bay, Guangdong province, China were analyzed. The average concentrations of mercury (Hg) in surface sediments of natural mangrove and restored mangrove were 172 and 151 ng g(-1), whereas those of copper (Cu) were 75 and 50 μg g(-1), respectively. Compared to those from other typical mangrove wetlands of the world, the metal levels in Shenzhen were at median to high levels, which is consistent with the fact that Shenzhen is in high exploitation and its mangrove suffer intensive impact from human activities. Hg and Cu concentration profiles indicated a higher metal accumulation in surface layers of sediments, in agreement with enrichment of organic matter contents. Maximum concentration, enrichment factors, and excess (background-deducted) concentration inventories of metals (Hg and Cu) were substantially different between environments, decreasing from natural mangrove sediments to restored mangrove sediments to mud flat. Furthermore, metal inputs to Futian mangrove decreased in the order natural mangrove > restored mangrove > mud flat, indicating that mangrove facilitated the accumulation and storage of Hg and Cu in sediment layers.
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Affiliation(s)
- Ruili Li
- Shenzhen Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China
| | - Hualin Xu
- Guangdong Neilingding Futian National Nature Reserve, Shenzhen, 518000, China
| | - Minwei Chai
- Shenzhen Key Laboratory of Environment Simulation and Pollution Control, PKU-HKUST Shenzhen-HongKong Institute, Shenzhen, 518057, People's Republic of China.
| | - Guo Yu Qiu
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China.
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33
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Miola B, Morais JOD, Pinheiro LDS. Trace metal concentrations in tropical mangrove sediments, NE Brazil. MARINE POLLUTION BULLETIN 2016; 102:206-209. [PMID: 26608507 DOI: 10.1016/j.marpolbul.2015.11.039] [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: 07/29/2015] [Revised: 11/10/2015] [Accepted: 11/16/2015] [Indexed: 06/05/2023]
Abstract
Sediment cores were taken from the mangroves of the Coreaú River estuary off the northeast coast of Brazil. They were analyzed for grain size, CaCO3, organic matter, and trace metal (Cd, Pb, Zn, Cu, Al, and Fe) contents. Mud texture was the predominant texture. Levels of trace metals in surface sediments indicated strong influence of anthropogenic processes, and diagenetic processes controlled the trace metal enrichment of core sediments of this estuary. The positive relationships between trace metals and Al and Fe indicate that Cu, Zn, Pb, and Cd concentrations are associated mainly with Al and Fe oxy-hydroxides and have natural sources.
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Affiliation(s)
- Brígida Miola
- Programa de Pós-graduação em Ciências Marinhas Tropicais, Brazil; Universidade de Fortaleza, Campus P.O. BOX 1321, 60811-905 Fortaleza, CE, Brazil.
| | - Jáder Onofre de Morais
- Instituto de Ciências do Mar, Universidade Federal do Ceará, P.O BOX. 3207, 60165-081 Fortaleza, CE, Brazil
| | - Lidriana de Souza Pinheiro
- Instituto de Ciências do Mar, Universidade Federal do Ceará, P.O BOX. 3207, 60165-081 Fortaleza, CE, Brazil
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34
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Nakata H, Nakayama SMM, Ikenaka Y, Mizukawa H, Ishii C, Yohannes YB, Konnai S, Darwish WS, Ishizuka M. Metal extent in blood of livestock from Dandora dumping site, Kenya: Source identification of Pb exposure by stable isotope analysis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2015; 205:8-15. [PMID: 25997160 DOI: 10.1016/j.envpol.2015.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Revised: 04/29/2015] [Accepted: 05/01/2015] [Indexed: 06/04/2023]
Abstract
Nairobi city in Kenya produces 2000 tons/day of garbage, and most of it is dumped onto the Dandora dumping site, home to a quarter-million residents. This study was conducted (1) to assess the contamination levels of nine metals and a metalloid (arsenic) in the blood of pigs, goats, sheep and cattle from Dandora, and (2) to identify a possible source of lead (Pb) pollution. Cadmium (Cd, 0.17-4.35 μg/kg, dry-wt) and Pb (90-2710 μg/kg) levels in blood were generally high, suggesting human exposure to Cd through livestock consumption and Pb poisoning among pigs (2600 μg/kg) and cattle (354 μg/kg). Results of Pb isotope ratios indicated that the major exposure route might differ among species. Our results also suggested a possibility that the residents in Dandora have been exposed to the metals through livestock consumption.
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Affiliation(s)
- Hokuto Nakata
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Shouta M M Nakayama
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Yoshinori Ikenaka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan; Water Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Hazuki Mizukawa
- Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Chihiro Ishii
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Yared B Yohannes
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan; Department of Chemistry, College of Natural and Computational Science, University of Gondar, P.O. Box 196, Gondar, Ethiopia
| | - Satoru Konnai
- Laboratory of Infectious Diseases, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan
| | - Wageh Sobhy Darwish
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan; Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Mayumi Ishizuka
- Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo 060-0818, Japan.
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Spatial Distribution of Selected Heavy Metals in Surface Sediments of the EEZ of the East Coast of Peninsular Malaysia. ACTA ACUST UNITED AC 2015. [DOI: 10.1155/2015/618074] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Spatial distribution of selected metals (Al, Fe, Mn, Zn, Cu, and Co) in surface sediments in the EEZ of the east coast of Peninsular Malaysia was investigated. The aim of this paper is to determine the distribution pattern and pollution status of heavy metals in tropical shelf sediments since limited information is available. Heavy metal concentrations ranged between 207.58 and 491.33 µg·g−1 for Mn, 36.13 and 125.93 µg·g−1 for Zn, 14.49 and 22.33 µg·g−1 for Cu, 2.00 and 11.12 µg·g−1 for Co, 6.20 and 8.95% for Fe, and 0.94 and 6.62% for Al. The mean concentrations of heavy metals are in decreasing order as follows: Fe > Al > Mn > Zn > Cu > Co. Most metals registered low concentrations at the nearshore areas. Pearson correlation indicates that most of the metals are derived from the miscellaneous sources. Based on the EFs and Igeo, it is implied that the surface sediment trace metal levels in the study area might be enriched by anthropogenic sources. However, the PLI suggests that this area is not contaminated from the measured heavy metals. This work is important to register the current levels of metals so that any change in concentration can be monitored and managed.
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Brady JP, Ayoko GA, Martens WN, Goonetilleke A. Temporal trends and bioavailability assessment of heavy metals in the sediments of Deception Bay, Queensland, Australia. MARINE POLLUTION BULLETIN 2014; 89:464-472. [PMID: 25440195 DOI: 10.1016/j.marpolbul.2014.09.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 09/12/2014] [Accepted: 09/17/2014] [Indexed: 06/04/2023]
Abstract
Thirteen sites in Deception Bay, Queensland, Australia were sampled three times over a period of 7 months and assessed for contamination by a range of heavy metals, primarily As, Cd, Cr, Cu, Pb and Hg. Fraction analysis, enrichment factors and Principal Components Analysis-Absolute Principal Component Scores (PCA-APCS) analysis were conducted in order to identify the potential bioavailability of these elements of concern and their sources. Hg and Te were identified as the elements of highest enrichment in Deception Bay while marine sediments, shipping and antifouling agents were identified as the sources of the Weak Acid Extractable Metals (WE-M), with antifouling agents showing long residence time for mercury contamination. This has significant implications for the future of monitoring and regulation of heavy metal contamination within Deception Bay.
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Affiliation(s)
- James P Brady
- Queensland University of Technology, Science and Engineering Faculty, School of Chemistry, Physics and Mechanical Engineering, GPO Box 2434, Brisbane, QLD 4001, Australia
| | - Godwin A Ayoko
- Queensland University of Technology, Science and Engineering Faculty, School of Chemistry, Physics and Mechanical Engineering, GPO Box 2434, Brisbane, QLD 4001, Australia.
| | - Wayde N Martens
- Queensland University of Technology, Science and Engineering Faculty, School of Chemistry, Physics and Mechanical Engineering, GPO Box 2434, Brisbane, QLD 4001, Australia
| | - Ashantha Goonetilleke
- Queensland University of Technology, Science and Engineering Faculty, GPO Box 2434, Brisbane, QLD 4001, Australia
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Kanhai LDK, Gobin JF, Beckles DM, Lauckner B, Mohammed A. Metals in sediments and mangrove oysters (Crassostrea rhizophorae) from the Caroni Swamp, Trinidad. ENVIRONMENTAL MONITORING AND ASSESSMENT 2014; 186:1961-1976. [PMID: 24201558 DOI: 10.1007/s10661-013-3510-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Accepted: 10/23/2013] [Indexed: 06/02/2023]
Abstract
Metals can have significant impacts on inhabitants of mangrove swamps as well as consumers of mangrove-associated fauna. Yet, for several Caribbean islands, assessments regarding the impact of metals on such ecosystems are particularly sparse. The present study investigated the distribution and potential impact of Cd, Cr, Cu, Ni, Pb and Zn in the Caroni Swamp, Trinidad and Tobago's largest mangrove ecosystem. Surface sediments and mangrove oysters (Crassostrea rhizophorae) from 10 sites in the swamp were analysed for the 6 identified metals. The concentration ranges (in μg/g dry wt.) of metals in sediments from Caroni Swamp were: Zn (113.4-264.6), Cr (27-69.7), Ni (10.7-41.1) and Cu (11-40.7). Based on Canadian Sediment Quality Guidelines (CSQGs), metals in sediments posed a low to medium risk to aquatic life. The concentration ranges (in μg/g wet wt.) for metals in Crassostrea rhizophorae tissues were: Zn (123.2-660), Cu (4.2-12.3), Ni (0.1-5.5), Pb (0.1-0.9), Cr (0.2-0.3) and Cd (0.1-0.2). Multiple evaluations indicated that zinc posed a potential threat to the health of oyster consumers. Information from this study is vital for managing the Caroni Swamp, safeguarding the health of consumers of shellfish on this Caribbean island and serving as a useful baseline for future local and regional risk assessments.
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Affiliation(s)
- La Daana K Kanhai
- Department of Life Sciences, The University of the West Indies, St. Augustine, Trinidad and Tobago,
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Lima V, Souza V, Nascimento R, Santos P, Almeida M, Hazin C. Metal fractionation in sediments as a tool for assessing the availability of trace metals: The case of Apipucos Reservoir. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2013.01.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kularatne RKA. Phytoremediation of Pb by Avicennia marina (Forsk.) Vierh and spatial variation of Pb in the Batticaloa Lagoon, Sri Lanka during driest periods: a field study. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2014; 16:509-523. [PMID: 24912232 DOI: 10.1080/15226514.2013.798618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Batticaloa Lagoon (Sri Lanka) is subjected to significant pollution as a result of anticipated unplanned development works since the cessation of a civil war in May, 2009. This paper presents the effectiveness of Avicennia marina (Forsk.) Vierh in the phytoremediation of Pb and the variation of Pb in sediments and water in the intertidal zone under drier weather conditions. Four pristine areas and 4 mangroves cut areas within the Manmunai North Divisional Secretariat Division/Batticaloa Municipal Council areas were investigated. Pb levels in the sediments and plants were negligible at all locations (i.e., below the method detection limit of the AAS for sediments and plants which is 0.25 mg/kg dry weight and 0.5 mg/kg dry weight, respectively). However, the water environment showed significant contamination (0.17-0.29 mg/L and 0.26-0.34 mg/L in pristine areas and cleared areas, respectively), hence Pb bioaccumulation is likely in fish and other biota. Avicennia marina is not effective to phytoremediate Pb under significant saline conditions.
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Rovai AS, Barufi JB, Pagliosa PR, Scherner F, Torres MA, Horta PA, Simonassi JC, Quadros DPC, Borges DLG, Soriano-Sierra EJ. Photosynthetic performance of restored and natural mangroves under different environmental constraints. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2013; 181:233-241. [PMID: 23872046 DOI: 10.1016/j.envpol.2013.06.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 06/06/2013] [Accepted: 06/09/2013] [Indexed: 06/02/2023]
Abstract
We hypothesized that the photosynthetic performance of mangrove stands restored by the single planting of mangroves species would be lowered due to residual stressors. The photosynthetic parameters of the vegetation of three planted mangrove stands, each with a different disturbance history, were compared to reference sites and correlated with edaphic environmental variables. A permutational analysis of variance showed significant interaction when the factors were compared, indicating that the photosynthetic parameters of the restoration areas differed from the reference sites. A univariate analysis of variance showed that all the photosynthetic parameters differed between sites and treatments, except for photosynthetic efficiency (αETR). The combination of environmental variables that best explained the variations observed in the photosynthetic performance indicators were Cu, Pb and elevation disruptions. Fluorescence techniques proved efficient in revealing important physiological differences, representing a powerful tool for rapid analysis of the effectiveness of initiatives aimed at restoring coastal environments.
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Affiliation(s)
- André Scarlate Rovai
- Universidade Federal de Santa Catarina, Departamento de Ecologia e Zoologia, Campus Universitário, Trindade, 88040-900 Florianópolis, SC, Brazil.
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41
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Suzuki KN, Machado EC, Machado W, Bellido LF, Bellido AVB, Lopes RT. Radiotracer estimates of benthic activity effects on trace metal diffusion into mangrove sediments. MARINE ENVIRONMENTAL RESEARCH 2013; 83:96-100. [PMID: 23174087 DOI: 10.1016/j.marenvres.2012.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 10/14/2012] [Accepted: 10/21/2012] [Indexed: 06/01/2023]
Abstract
Potential influences of the whole benthic organisms' activity (i.e., coupled faunal and microbial effects) on (58)Co, (51)Cr and (65)Zn diffusion into surface mangrove sediment layers (0-6 cm depth) were evaluated in 36 h experiments. Benthic activity indices (BAI) were proposed, calculated as the relative percent difference between untreated sediments and formaldehyde-treated sediments data in relation to untreated sediments data. Benthic activity was estimated as responsible for 32%-44% of total inventories within sediments, being the chromate anion spiked the less affected radiotracer, while (65)Zn was the most sensitive. Benthic activity was quantitatively evidenced as a control on trace metal diffusion into the sediments, contributing to determine the sediment role as a metal sink. This influence can also affect metal potential bioavailability, considering that recently diffused metals can be more readily available to biological uptake.
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Affiliation(s)
- K N Suzuki
- Laboratório de Instrumentação Nuclear, COPPE, Universidade Federal do Rio de Janeiro, RJ, Brazil.
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42
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Lin Y, Vogt R, Larssen T. Environmental mercury in China: a review. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2012; 31:2431-2444. [PMID: 22887129 DOI: 10.1002/etc.1980] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 06/03/2012] [Accepted: 07/06/2012] [Indexed: 06/01/2023]
Abstract
Mercury is a global pollutant that can be transported over long distances and can bioaccumulate. Currently, China is the country that contributes most to atmospheric Hg emissions and has the greatest intentional (industrial) use of Hg. Mercury in the Chinese environment is generally elevated, particularly in air and water bodies. Remote areas in China also show elevated Hg levels in air and water bodies compared to other rural regions in the world. Large river estuaries are often heavily affected by upstream industrial sources. Mercury is also elevated in sediments, a direct result of contamination in river systems. Regardless of the few heavily polluted sites, the urban environment in Chinese cities is comparable to that of other megacities in terms of Hg pollution, considering the size and rapid development of Chinese cities. Studies on Hg in fish showed generally low levels of contamination resulting from low bioaccumulation of Hg in the mostly short food chains. Mercury in rice has recently received increased research interest; elevated concentrations have been reported from rice grown in contaminated areas and may pose a threat to people dependent on such locally grown food. For the general population, Hg exposure from rice is, however, small. In addition, Hg hair concentration in the Chinese population showed generally low levels of exposure to Hg, except for people with special occupational exposure.
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Affiliation(s)
- Yan Lin
- Norwegian Institute for Water Research, Oslo, Norway.
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43
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Bayen S. Occurrence, bioavailability and toxic effects of trace metals and organic contaminants in mangrove ecosystems: a review. ENVIRONMENT INTERNATIONAL 2012; 48:84-101. [PMID: 22885665 DOI: 10.1016/j.envint.2012.07.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 07/05/2012] [Accepted: 07/22/2012] [Indexed: 05/21/2023]
Abstract
Although their ecological and socioeconomic importance has received recent attention, mangrove ecosystems are one of the most threatened tropical environments. Besides direct clearance, hydrological alterations, climatic changes or insect infestations, chemical pollution could be a significant contributor of mangrove degradation. The present paper reviews the current knowledge on the occurrence, bioavailability and toxic effects of trace contaminants in mangrove ecosystems. The literature confirmed that trace metals, Polycyclic Aromatic Hydrocarbons (PAHs), Persistent Organic Pollutants (POPs), Pharmaceuticals and Personal Care Products (PPCPs) and Endocrine Disrupters Compounds (EDCs) have been detected in various mangrove compartments (water, sediments and biota). In some cases, these chemicals have associated toxic effects on mangrove ecosystem species, with potential impact on populations and biodiversity in the field. However, nearly all studies about the bioavailability and toxic effects of contaminants in mangrove ecosystems focus on selected trace metals, PAHs or some "conventional" POPs, and virtually no data exist for other contaminant groups. The specificities of mangrove ecosystems (e.g. biology, physico-chemistry and hydrology) support the need for specific ecotoxicological tools. This review highlights the major data and methodological gaps which should be addressed to refine the risk assessment of trace pollutants in mangrove ecosystems.
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Affiliation(s)
- Stéphane Bayen
- Singapore-Delft Water Alliance, National University of Singapore, Engineering Workshop 1, #02-05, No. 2 Engineering Drive 2, Singapore 117577, Singapore.
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Chatterjee M, Canário J, Sarkar SK, Branco V, Godhantaraman N, Bhattacharya BD, Bhattacharya A. Biogeochemistry of mercury and methylmercury in sediment cores from Sundarban mangrove wetland, India--a UNESCO World Heritage Site. ENVIRONMENTAL MONITORING AND ASSESSMENT 2012; 184:5239-5254. [PMID: 21968876 DOI: 10.1007/s10661-011-2336-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Accepted: 08/29/2011] [Indexed: 05/31/2023]
Abstract
This study was performed to elucidate the distribution, concentration trend and possible sources of total mercury (Hg(T)) and methylmercury (MeHg) in sediment cores (<63 μm particle size; n = 75) of Sundarban mangrove wetland, northeastern part of the Bay of Bengal, India. Total mercury was determined by atomic absorption spectrometry (AAS) in a Leco AMA 254 instrument and MeHg by gas chromatography-atomic fluorescence spectrometry (GC-AFS). A wide range of variation in Hg(T) (0.032-0.196 μg g(-1) dry wt.) as well as MeHg (0.04-0.13 ng g(-1) dry wt.) concentrations revealed a slight local contamination. The prevalent low Hg(T) levels in sediments could be explained by sediment transport by the tidal Hugli (Ganges) River that would dilute the Hg(T) values via sediment mixing processes. A broader variation of MeHg proportions (%) were also observed in samples suggesting that other environmental variables such as organic carbon and microbial activity may play a major role in the methylation process. An overall elevated concentration of Hg(T) in surface layers (0-4 cm) of the core is due to remobilization of mercury from deeper sediments. Based on the index of geoaccumulation (I (geo)) and low effects-range (ER-L) values, it is considered that the sediment is less polluted by Hg(T) and there is less ecotoxicological risk. The paper provides the first information of MeHg in sediments from this wetland environment and the authors strongly recommend further examination of Hg(T) fluxes for the development of a detailed coastal MeHg model. This could provide more refine estimates of a total flux into the water column.
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Affiliation(s)
- Mousumi Chatterjee
- Department of Marine Science, University of Calcutta, 35, B.C. Road, Calcutta, India
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45
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Froehner S, Machado KS, Stefan E, Bleninger T, da Rosa EC, de Castro Martins C. Occurrence of selected estrogens in mangrove sediments. MARINE POLLUTION BULLETIN 2012; 64:75-79. [PMID: 22093257 DOI: 10.1016/j.marpolbul.2011.10.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Revised: 10/20/2011] [Accepted: 10/22/2011] [Indexed: 05/31/2023]
Abstract
This paper presents results related to the occurrence and distribution of estrogens along the Brazilian coast. Three mangrove areas were chosen to evaluate the presence of estrogens in surface sediments of mangrove forests. The presence of estrogens was observed in all studied sites. 17-α-Ethinylestradiol (EE2), a synthetic estrogen, was the most common and has been found in higher concentration (0.45-129.78 ng/g) compared to 17-β-estradiol (E1) and estrone (E2) (both being natural estrogens). The concentrations of E1 and E2 ranged from 0.02 to 49.27 ng/g and 0.03 to 39.77 ng/g, respectively. Theoretically, under anaerobic conditions EE2 can be reduced to E1 even in environments such as sediments of mangrove forests, which are essentially anaerobic. Even if the concentrations of estrogens seem to be insignificant in some samples, the effects remain uncertain.
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Affiliation(s)
- Sandro Froehner
- Department of Environmental Engineering, Federal University of Parana, Curitiba - PR 81531-980, Brazil.
| | - Karina Scurupa Machado
- Department of Environmental Engineering, Federal University of Parana, Curitiba - PR 81531-980, Brazil
| | - Elisa Stefan
- Department of Environmental Engineering, Federal University of Parana, Curitiba - PR 81531-980, Brazil
| | - Tobias Bleninger
- Department of Environmental Engineering, Federal University of Parana, Curitiba - PR 81531-980, Brazil
| | | | - César de Castro Martins
- Centro de Estudos do Mar, Federal University of Parana, Pontal do Parana - PR 83255-000, Brazil
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Parvaresh H, Abedi Z, Farshchi P, Karami M, Khorasani N, Karbassi A. Bioavailability and concentration of heavy metals in the sediments and leaves of grey mangrove, Avicennia marina (Forsk.) Vierh, in Sirik Azini Creek, Iran. Biol Trace Elem Res 2011; 143:1121-30. [PMID: 21053092 DOI: 10.1007/s12011-010-8891-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Accepted: 10/19/2010] [Indexed: 11/29/2022]
Abstract
The concentration and bioavailability of Ni, Cu, Cd, Zn, and Pb in the sediments and leaves of grey mangrove, Avicennia marina, were studied throughout Sirik Azini creek (Iran) with a view to determine heavy metals bioavailability, and two methods were used. Results show that Zn and Ni had the highest concentrations in the sediments, while Cd and Cu were found to have the lowest concentrations in the sediments. Compared to the mean concentrations of heavy metals in sedimentary rock (shales), Zn and Cu showed lower concentration, possibly indicating that the origin of these heavy metals is natural. A geo-accumulation index (Igeo) was used to determine the degree of contamination in the sediments. Igeo values for Zn, Cu, Pb, and Ni showed that there is no pollution from these metals in the study area. As heavy metal concentrations in leaves were higher than the bioavailable fraction of metals in sediments, it follows that bioconcentration factors (leaf/bioavailable sediment) for some metals were higher than 1.
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Affiliation(s)
- Hossein Parvaresh
- Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
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Lewis M, Pryor R, Wilking L. Fate and effects of anthropogenic chemicals in mangrove ecosystems: a review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2011; 159:2328-2346. [PMID: 21601968 DOI: 10.1016/j.envpol.2011.04.027] [Citation(s) in RCA: 149] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 04/12/2011] [Accepted: 04/17/2011] [Indexed: 05/30/2023]
Abstract
The scientific literature for fate and effects of non-nutrient contaminant concentrations is skewed for reports describing sediment contamination and bioaccumulation for trace metals. Concentrations for at least 22 trace metals have been reported in mangrove sediments. Some concentrations exceed sediment quality guidelines suggesting adverse effects. Bioaccumulation results are available for at least 11 trace metals, 12 mangrove tissues, 33 mangrove species and 53 species of mangrove-habitat biota. Results are specific to species, tissues, life stage, and season and accumulated concentrations and bioconcentration factors are usually low. Toxicity tests have been conducted with 12 mangrove species and 8 species of mangrove-related fauna. As many as 39 effect parameters, most sublethal, have been monitored during the usual 3 to 6 month test durations. Generalizations and extrapolations for toxicity between species and chemicals are restricted by data scarcity and lack of experimental consistency. This hinders chemical risk assessments and validation of effects-based criteria.
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Affiliation(s)
- Michael Lewis
- US Environmental Protection Agency, Office of Research and Development, 1 Sabine Island Drive, Gulf Breeze, FL 32561, USA.
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Rangel CMA, Baptista Neto JA, Fonseca EM, McAlister J, Smith BJ. Study of heavy metal concentration and partitioning in the Estrela River: implications for the pollution in Guanabara Bay - SE Brazil. ACTA ACUST UNITED AC 2011; 83:801-15. [DOI: 10.1590/s0001-37652011005000020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this study, the geochemical analysis of ten sediment samples collected along the fluvial system of the Estrela River, which flows into the northern portion of Guanabara Bay, shows the presence of anthropogenic impacts in this area. Concentrations of Fe, Mn, Zn, Cu, Pb, Cr and Ni obtained were slightly higher, when compared with values found innatural environments. The particle size and organic matter content in most of the analyzed stations showed featuresnot conducive to the accumulation of pollutants due to the low organic matter content and the strong presence ofsand fraction. There was also the fractionation of heavy metals in sediments and it was found the prominence ofresidual and reducible phase, besides the significant occurrence of organic fractions in some analyzed stations. Thesefactors, thus, highlight the potential risks of contamination, where the metals associated with the organic phase canbecome bioavailable in processes of dissolution, provided by physico-chemical changes that can occur in this aquaticenvironment.
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Kim KR, Owens G. Potential for enhanced phytoremediation of landfills using biosolids--a review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2010; 91:791-797. [PMID: 19939550 DOI: 10.1016/j.jenvman.2009.10.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2009] [Revised: 10/22/2009] [Accepted: 10/28/2009] [Indexed: 05/28/2023]
Abstract
Despite the use of recyclable materials increasing worldwide, waste disposal to landfill remains the most common method of waste management because it is simple and relatively inexpensive. Although landfill disposal is an effective waste management system, if not managed correctly, a number of potential detrimental environmental impacts have been identified including soil and ground water contamination, leachate generation, and gas emissions. In particular, improper post-closure treatment of landfills or deterioration of the conventional clay landfill capping were shown to result in land degradation which required remediation to secure contaminants within the landfill site. Phytoremediation is an attractive technology for landfill remediation, as it can stabilize soil and simultaneously remediate landfill leachate. In addition, landfill phytoremediation systems can potentially be combined with landfill covers (Phytocapping) for hydrological control of infiltrated rainfall. However, for the successful application of any phytoremediation system, the effective establishment of appropriate, desired vegetation is critical. This is because the typically harsh and sterile nature of landfill capping soil limits the sustainable establishment of vegetation. Therefore, the physicochemical properties of landfill capping soils often need to be improved by incorporating soil amendments. Biosolids are a common soil amendment and will often meet these demanding conditions because they contain a variety of plant nutrients such as nitrogen, phosphate, potassium, as well as a large proportion of organic matter. Such amendment will also ameliorate the physical properties of the capping soils by increasing porosity, moisture content, and soil aggregation. Contaminants which potentially originate from biosolids will also be remediated by activities congruent with the establishment of plants and bacteria.
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Affiliation(s)
- Kwon-Rae Kim
- Climate Change & Agroecology Division, Department of Agricultural Environment, National Academy of Agricultural Science, RDA, 150 Suin-ro, Kwonsun-gu, Suwon 441-707, Republic of Korea.
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50
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Gil C, Ramos-Miras J, Roca-Pérez L, Boluda R. Determination and assessment of mercury content in calcareous soils. CHEMOSPHERE 2010; 78:409-415. [PMID: 20004461 DOI: 10.1016/j.chemosphere.2009.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Revised: 10/20/2009] [Accepted: 11/01/2009] [Indexed: 05/28/2023]
Abstract
This paper provides the first available information on the determination of the total mercury content in different Mediterranean calcareous soils by thermal decomposition, amalgamation and atomic absorption spectrophotometry. Fifty-three samples from five soil use groups (natural, dry land, greenhouse, irrigated and rice farming soils) were analysed. The results show that the levels of mercury in these soils were 9.4-1585mugkg(-1). Soil organic matter and the zinc equivalent index have been related to Hg content in soils, suggesting that Cu, Ni, Zn and Hg are of a similar origin. The background level (BL), geochemical baseline concentrations (GBC) and the reference value (RV) were established from natural soils. Calculations are according to the log-normal distribution criterion. The BL, GBC and RV values obtained were 25.1, 9.8-64.3, and 64.3mugkg(-1), respectively. The BL was similar to the baseline concentration in soils obtained at Admiralty Bay (Antarctica) (24.6mugkg(-1)) and a Spanish peat bog (Galicia) (22mugkg(-1)). These data show that rice farming soils (gleyic-calcaric Fluvisols, Fluvaquents), irrigated soils (calcaric Fluvisols, Xerofluvents) and some greenhouse soils (cumulic Antrosols) presented much higher levels, indicating contamination. Hg accumulation in these soils was associated with local anthropogenic sources.
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Affiliation(s)
- C Gil
- Dept. Edafología y Química Agrícola, Escuela Politécnica Superior, Universidad de Almería, Ctra. de Sacramento s/n, 04120 La Cañada, Almería, Spain
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