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Dang DH, Wang W, Omanović D, Mucci A. Mixing behaviour and sources of Ag, Pd, and other trace elements in the Estuary and Gulf of St. Lawrence under winter conditions. CHEMOSPHERE 2024; 363:142935. [PMID: 39053777 DOI: 10.1016/j.chemosphere.2024.142935] [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: 05/21/2024] [Revised: 07/05/2024] [Accepted: 07/23/2024] [Indexed: 07/27/2024]
Abstract
The marine chemistry of platinum group elements is poorly documented despite robust evidence of their widespread emissions and deposition around the globe. Here, we report the concentrations and discuss the geochemical behaviours of Ag, Pd and other trace and ultra-trace elements in the Estuary and Gulf of St. Lawrence (EGSL). We highlight the contrasting mixing behaviours of these elements, i.e., conservative (Cd, Re) vs. non-conservative (Ag, Pd), in samples collected during the winter and under ice-covered conditions. We ascribe the contrasting geochemical behaviour of these elements to their differential affinity for reactive surfaces carried into the estuary from the frozen watersheds. We also report an increase of the concentrations of Ag (up to 40 pmol L-1), Pd (up to 10 pmol L-1) and Pt (up to 0.4 pmol L-1) in the bottom and oxygen-depleted waters of the Gulf of St. Lawrence (GSL). A strong correlation between dissolved Pt concentrations and the stable carbon isotopic composition of the dissolved inorganic carbon (δ13C-DIC) suggests that the increased mobility of Pt may result from the aerobic mineralization of organic carbon or the oxidation of Pt-bearing organic complexes. Molar Pt/Pd ratios in the three water masses that compose the water column in the EGSL highlight a potential influence of anthropogenic sources near urban centers. The signature of continental end-members will be required to confirm the impacts of road traffic on the estuarine geochemistry of these elements.
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Affiliation(s)
- Duc Huy Dang
- School of the Environment and Department of Chemistry, Trent University, Peterborough, Canada; Water Quality Center, Trent University, Peterborough, Canada.
| | - Wei Wang
- School of the Environment and Department of Chemistry, Trent University, Peterborough, Canada
| | - Dario Omanović
- Ruđer Bošković Institute, Division for Marine and Environmental Research, HR-10002, Zagreb, Croatia
| | - Alfonso Mucci
- Geotop and Department of Earth and Planetary Sciences, McGill University, Montreal, QC, Canada
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2
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Padhye LP, Jasemizad T, Bolan S, Tsyusko OV, Unrine JM, Biswal BK, Balasubramanian R, Zhang Y, Zhang T, Zhao J, Li Y, Rinklebe J, Wang H, Siddique KHM, Bolan N. Silver contamination and its toxicity and risk management in terrestrial and aquatic ecosystems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 871:161926. [PMID: 36739022 DOI: 10.1016/j.scitotenv.2023.161926] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Silver (Ag), a naturally occurring, rare and precious metal, is found in major minerals such as cerargyrite (AgCl), pyrargyrite (Ag3SbS3), proustite (Ag3AsS3), and stephanite (Ag5SbS4). From these minerals, Ag is released into soil and water through the weathering of rocks and mining activities. Silver also enters the environment by manufacturing and using Ag compounds in electroplating and photography, catalysts, medical devices, and batteries. With >400 t of Ag NPs produced yearly, Ag NPs have become a rapidly growing source of anthropogenic Ag input in the environment. In soils and natural waters, most Ag is sorbed to soil particles and sediments and precipitated as oxides, carbonates, sulphides, chlorides and hydroxides. Silver and its compounds are toxic, and humans and other animals are exposed to Ag through inhalation of air and the consumption of Ag-contaminated food and drinking water. Remediation of Ag-contaminated soil and water sources can be achieved through immobilization and mobilization processes. Immobilization of Ag in soil and groundwater reduces the bioavailability and mobility of Ag, while mobilization of Ag in the soil can facilitate its removal. This review provides an overview of the current understanding of the sources, geochemistry, health hazards, remediation practices and regulatory mandates of Ag contamination in complex environmental settings, including soil and aquatic ecosystems. Knowledge gaps and future research priorities in the sustainable management of Ag contamination in these settings are also discussed.
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Affiliation(s)
- Lokesh P Padhye
- Department of Civil and Environmental Engineering, Faculty of Engineering, The University of Auckland, Auckland 1010, New Zealand
| | - Tahereh Jasemizad
- Department of Civil and Environmental Engineering, Faculty of Engineering, The University of Auckland, Auckland 1010, New Zealand
| | - Shiv Bolan
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
| | - Olga V Tsyusko
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546, USA
| | - Jason M Unrine
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546, USA; Kentucky Water Resources Research Institute, University of Kentucky, Lexington, KY, 40506, USA
| | - Basanta Kumar Biswal
- Department of Civil and Environmental Engineering, National University of Singapore, 117576, Singapore
| | | | - Yingyu Zhang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Tao Zhang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of Ministry of Education, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Jian Zhao
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yang Li
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
| | - Hailong Wang
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia; UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
| | - Nanthi Bolan
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia.
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3
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Rodríguez-Velarte P, Babarro JMF, Cobelo-García A. Bioaccumulation patterns of trace elements by native (M. galloprovincialis) and invasive (X. securis) mussels in coastal systems (Vigo Ria, NW Iberian Peninsula). MARINE POLLUTION BULLETIN 2022; 176:113463. [PMID: 35219078 DOI: 10.1016/j.marpolbul.2022.113463] [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: 12/23/2021] [Revised: 02/10/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
A number of trace elements (Mn, Fe, Co, Ni, Cu, Zn, As, Nb, Mo, Ag, Cd, Pb, U and the rare earth elements - REE) were analyzed in the dissolved phase, suspended particulate matter and in different organs (gills, hepatopancreas, and the rest of soft tissue) in mussels of the native Mytilus galloprovincialis and invasive Xenostrobus securis species in the Vigo Ria (NW Iberian Peninsula) in order to assess potential differences in their bioaccumulation patterns. Results obtained do not show significant differences in the bioaccumulation of trace elements by M. galloprovincialis and X. securis, except for Zn and Ag. In the case of Zn, a 4-fold enrichment in M. galloprovincialis compared to X. securis was found. The most important differences between species were observed for Ag, with approximately 40-fold higher concentrations in X. securis. Such elevated Ag bioaccumulation by X. securis can be useful for Ag biomonitoring using these invasive species in this area.
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Affiliation(s)
- P Rodríguez-Velarte
- Instituto de Investigacións Mariñas (IIM-CSIC), Eduardo Cabello 6, 36208 Vigo, Spain
| | - J M F Babarro
- Instituto de Investigacións Mariñas (IIM-CSIC), Eduardo Cabello 6, 36208 Vigo, Spain
| | - A Cobelo-García
- Instituto de Investigacións Mariñas (IIM-CSIC), Eduardo Cabello 6, 36208 Vigo, Spain.
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4
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Schäfer J, Coynel A, Blanc G. Impact of metallurgy tailings in a major European fluvial-estuarine system: Trajectories and resilience over seven decades. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 805:150195. [PMID: 34537694 DOI: 10.1016/j.scitotenv.2021.150195] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/27/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
Tailings containing mining and ore treatment waste, accumulated over long time periods are major contaminant sources at the watershed scale and may seriously impair environmental quality of river-sea continuums. A critical review of existing work in different disciplines addressing the multi-metal contamination of the Gironde Watershed, a major fluvial-estuarine model system representative of many other systems worldwide, has provided a condensed, yet pertinent overview on various aspects of this environmental problem. Combining long-term observation and contamination records from different environmental archives, there is a clear trend towards resilience for the main historical contaminants (Cd, Zn, Pb and Cu), yet suggesting that resilience needs appropriate management of both, tailings as the initial source and contaminated sediments acting as temporary metal traps which may transform into delayed sources. Contaminated sediment management is an increasingly important challenge due to (i) successful remediation at the contamination source itself (ii) global-change induced factors and strategies and (iii) lacking coordination of actions between upstream and downstream parts of the fluvial-estuarine continuum. Less studied and emerging metallic contaminants show recent trends in sediments and biota that are decoupled from the legacy contaminant trajectories due to recent sources and applications, suggesting that further work is needed to assess their potential impact on the environmental quality of the Gironde fluvial-estuarine system and that of other systems, especially in a context of worldwide rapidly growing mining activity and metal use.
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Affiliation(s)
- Jörg Schäfer
- University of Bordeaux, UMR EPOC 5805, Allée Geoffroy St Hilaire, 33615 Pessac CEDEX, France.
| | - Alexandra Coynel
- University of Bordeaux, UMR EPOC 5805, Allée Geoffroy St Hilaire, 33615 Pessac CEDEX, France
| | - Gérard Blanc
- University of Bordeaux, UMR EPOC 5805, Allée Geoffroy St Hilaire, 33615 Pessac CEDEX, France
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5
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Geochemistry of Sub-Depositional Environments in Estuarine Sediments: Development of an Approach to Predict Palaeo-Environments from Holocene Cores. GEOSCIENCES 2022. [DOI: 10.3390/geosciences12010023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In the quest to use modern analogues to understand clay mineral distribution patterns to better predict clay mineral occurrence in ancient and deeply buried sandstones, it has been necessary to define palaeo sub-environments from cores through modern sediment successions. Holocene cores from Ravenglass in the NW of England, United Kingdom, contained metre-thick successions of massive sand that could not be unequivocally interpreted in terms of palaeo sub-environments using conventional descriptive logging facies analysis. We have therefore explored the use of geochemical data from portable X-ray fluorescence analyses, from whole-sediment samples, to develop a tool to uniquely define the palaeo sub-environment based on geochemical data. This work was carried out through mapping and defining sub-depositional environments in the Ravenglass Estuary and collecting 497 surface samples for analysis. Using R statistical software, we produced a classification tree based on surface geochemical data from Ravenglass that can take compositional data for any sediment sample from the core or the surface and define the sub-depositional environment. The classification tree allowed us to geochemically define ten out of eleven of the sub-depositional environments from the Ravenglass Estuary surface sediments. We applied the classification tree to a core drilled through the Holocene succession at Ravenglass, which allowed us to identify the dominant paleo sub-depositional environments. A texturally featureless (massive) metre-thick succession, that had defied interpretation based on core description, was successfully related to a palaeo sub-depositional environment using the geochemical classification approach. Calibrated geochemical classification models may prove to be widely applicable to the interpretation of sub-depositional environments from other marginal marine environments and even from ancient and deeply buried estuarine sandstones.
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6
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Cánovas CR, Basallote MD, Macías F. Distribution and availability of rare earth elements and trace elements in the estuarine waters of the Ría of Huelva (SW Spain). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 267:115506. [PMID: 32892016 DOI: 10.1016/j.envpol.2020.115506] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/29/2020] [Accepted: 08/21/2020] [Indexed: 06/11/2023]
Abstract
Metal pollution in estuaries represents a serious environmental challenge, especially in areas affected by industrial and mining activities. This study investigates the metal partitioning and availability of rare earth elements (REE), Y and other trace metals (Ag, Tl, U and Cs) in the Ria of Huelva estuary (SW Spain), strongly affected by mining and industrial activities. A 30 h monitoring campaign was performed collecting periodic water samples and deploying diffusive gradient in thin films (DGTs) devices to determine the main factors controlling metal availability. The dissolved concentrations of U (3118-3952 ng/L) and Cs (284-392 ng/L) were in the same order of magnitude than those reported in other estuaries and coastal waters worldwide, however, REE (26-380 ng/L), Y (15-109 ng/L), Ag (14-307 ng/L) and Tl (29-631 ng/L) concentrations exceeded these values for the same salinities. Unlike most metals (i.e. Ag, Tl, U, Cs), which were mainly found in the dissolved form (87-100% of total), REE and Y were found in the particulate phase (22-36% of total). Metal lability was mainly related to the concentration in the water column following this order: U>REE>Y>Ag>Tl. A similar binding mechanism was observed for Tl and Cd, due to its chemical affinity. This relationship between chemical properties and absorption by DGT-resin was also observed for REE (and Y), Rb and Sr, which may cause bioaccumulation upon persistent exposure, considering the ability of these metals to cross the biological membranes. The lability of metals predicted by geochemical codes did not coincide with absorption of labile metals by DGTs due probably to the instability of complexes in contact with the DGT membranes, the inability of metals to form thermodynamically stable complexes or the absorption of colloids. From this work it can be concluded that DGT passive sampling should complement traditional sampling to monitor metal availability in aquatic environments.
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Affiliation(s)
- Carlos Ruiz Cánovas
- Department of Earth Sciences and Research Center on Natural Resources, Health and the Environment, University of Huelva, Campus 'El Carmen', Fuerzas Armadas s/n, 21071, Huelva, Spain.
| | - Maria Dolores Basallote
- Department of Earth Sciences and Research Center on Natural Resources, Health and the Environment, University of Huelva, Campus 'El Carmen', Fuerzas Armadas s/n, 21071, Huelva, Spain
| | - Francisco Macías
- Department of Earth Sciences and Research Center on Natural Resources, Health and the Environment, University of Huelva, Campus 'El Carmen', Fuerzas Armadas s/n, 21071, Huelva, Spain
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7
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Acolas ML, Davail B, Gonzalez P, Jean S, Clérandeau C, Morin B, Gourves PY, Daffe G, Labadie P, Perrault A, Lauzent M, Pierre M, Le Barh R, Baudrimont M, Peluhet L, Le Menach K, Budzinski H, Rochard E, Cachot J. Health indicators and contaminant levels of a critically endangered species in the Gironde estuary, the European sturgeon. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:3726-3745. [PMID: 31020527 DOI: 10.1007/s11356-019-05139-5] [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: 08/02/2018] [Accepted: 04/08/2019] [Indexed: 06/09/2023]
Abstract
The European sturgeon, Acipenser sturio, is a highly endangered species that almost disappeared in the last decades. Thanks to yearly restocking of the population, this species is still found in the Gironde estuary (France), where juveniles grow during several years before leaving to the ocean. The aims of this study were to evaluate the pressure exerted on these fish by known organic and inorganic contaminants during their stay at the Gironde estuary, and to get information on the fish's health in this context. Monthly captures over the year 2014 provided 87 fish from the cohorts 2012 and 2013 mainly, and from cohorts 2008, 2009, and 2011, all fish born in hatchery. We report the very first analyses of contaminant levels and of biological markers measured in the blood of these fish. Low inorganic contamination was found, composed of seven metals mainly Zn (< 5 μg mL-1), Fe (< 1.5 μg mL-1), Cu (< 0.8 μg mL-1), Se (< 0.8 μg mL-1), As (< 0.25 μg mL-1), Co (< 0.14 μg mL-1), and Mn (< 0.03 μg mL-1). Concerning persistent organic contaminants, the sum of seven PCBs varied from 1 to 10 ng g-1 plasma, that of eight OCPs from 0.1 to 1 ng g-1, and that of eight PBDEs from 10 to 100 pg g-1. Higher levels of contaminants were measured during spring as compared to summer. The sex steroid hormone plasma levels (estradiol, testosterone, and 11-ketotestosterone) were quite low, which was predictable for juveniles. The transcription of reproduction-involved genes (EstR, AR, LHR, sox9) in blood cells was demonstrated for the first time. Some of them were correlated with organic contaminant levels PCBs and OCPs. Other gene transcriptions (sodCu and bax) were correlated with PCBs and OCPs. However, the DNA damage level measured here as comet tail DNA and micronuclei ratio in red blood cells were in the very low range of the values commonly obtained in fish from pristine areas. The data presented here can serve as a reference base for future monitoring of this population of sturgeons.
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Affiliation(s)
- Marie-Laure Acolas
- Irstea, EABX, Aquatic Ecosystems and Global Changes, 50 avenue de Verdun, F-33612, Gazinet Cestas, France
| | - Blandine Davail
- University of Bordeaux, UMR 5805 EPOC, Aquatic Ecotoxicology, B2, allée Geoffroy Saint-Hilaire, F-33405, Talence, France.
| | - Patrice Gonzalez
- University of Bordeaux, UMR 5805 EPOC, Aquatic Ecotoxicology, Place du Dr B. Peyneau, F-33120, Arcachon, France
| | - Séverine Jean
- EcoLab, Université de Toulouse, CNRS, INPT, UPS, Avenue de l'Agrobiopole, F-31326, Caxtanet-Tolosan Cedex, France
| | - Christelle Clérandeau
- University of Bordeaux, UMR 5805 EPOC, Aquatic Ecotoxicology, B2, allée Geoffroy Saint-Hilaire, F-33405, Talence, France
| | - Bénédicte Morin
- University of Bordeaux, UMR 5805 EPOC, Aquatic Ecotoxicology, B2, allée Geoffroy Saint-Hilaire, F-33405, Talence, France
| | - Pierre-Yves Gourves
- University of Bordeaux, UMR 5805 EPOC, Aquatic Ecotoxicology, Place du Dr B. Peyneau, F-33120, Arcachon, France
| | - Guillemine Daffe
- University of Bordeaux, UMR 5805 EPOC, Aquatic Ecotoxicology, Place du Dr B. Peyneau, F-33120, Arcachon, France
| | - Pierre Labadie
- University of Bordeaux, UMR 5805 EPOC, LPTC, 351 crs de la Libération, F-33405, Talence, France
| | - Annie Perrault
- EcoLab, Université de Toulouse, CNRS, INPT, UPS, Avenue de l'Agrobiopole, F-31326, Caxtanet-Tolosan Cedex, France
| | - Mathilde Lauzent
- University of Bordeaux, UMR 5805 EPOC, LPTC, 351 crs de la Libération, F-33405, Talence, France
| | - Maud Pierre
- Irstea, EABX, Aquatic Ecosystems and Global Changes, 50 avenue de Verdun, F-33612, Gazinet Cestas, France
| | - Romaric Le Barh
- Irstea, EABX, Aquatic Ecosystems and Global Changes, 50 avenue de Verdun, F-33612, Gazinet Cestas, France
| | - Magalie Baudrimont
- University of Bordeaux, UMR 5805 EPOC, Aquatic Ecotoxicology, Place du Dr B. Peyneau, F-33120, Arcachon, France
| | - Laurent Peluhet
- University of Bordeaux, UMR 5805 EPOC, LPTC, 351 crs de la Libération, F-33405, Talence, France
| | - Karyn Le Menach
- University of Bordeaux, UMR 5805 EPOC, LPTC, 351 crs de la Libération, F-33405, Talence, France
| | - Hélène Budzinski
- University of Bordeaux, UMR 5805 EPOC, LPTC, 351 crs de la Libération, F-33405, Talence, France
| | - Eric Rochard
- Irstea, EABX, Aquatic Ecosystems and Global Changes, 50 avenue de Verdun, F-33612, Gazinet Cestas, France
| | - Jérôme Cachot
- University of Bordeaux, UMR 5805 EPOC, Aquatic Ecotoxicology, B2, allée Geoffroy Saint-Hilaire, F-33405, Talence, France
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8
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Deycard VN, Schäfer J, Petit JCJ, Coynel A, Lanceleur L, Dutruch L, Bossy C, Ventura A, Blanc G. Inputs, dynamics and potential impacts of silver (Ag) from urban wastewater to a highly turbid estuary (SW France). CHEMOSPHERE 2017; 167:501-511. [PMID: 27756044 DOI: 10.1016/j.chemosphere.2016.09.154] [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: 06/08/2016] [Revised: 09/23/2016] [Accepted: 09/30/2016] [Indexed: 06/06/2023]
Abstract
Although silver (Ag) has been listed as a priority pollutant for the aquatic environment by the European Union (Directive 2006/11/EC), the use of Ag-based products with antimicrobial effects is increasing in Europe, as well as North America and Asia. This study investigates personal care products (PCP) as a potential source of Ag in wastewater, as well as the dynamics and fate of Ag in the influent and effluent of a major urban wastewater treatment plant (WWTP) located on the fluvial part of the Gironde Estuary. Typical household PCPs marked as using Ag contained concentrations of up to 0.4 mg kg-1 making them likely contributors to urban Ag released into the aquatic environment. Silver concentrations in influent wastewater generally occurred during mid-week working hours and decreased during the night and on weekends clearly indicating the dominance of urban sources. Up to 90% of the total Ag in wastewater was bound to particles and efficiently (>80%) removed by the treatment process, whereas 20% of Ag was released into the fluvial estuary. Silver concentrations in wastewater effluents clearly exceeded estuarine concentrations and may strongly amplify the local Ag concentrations and fluxes, especially during summer rainstorms in low river discharge conditions. Further work should focus on environmental effects and fate of urban Ag release due to immediate localized outfall and/or the adsorption on estuarine particles and subsequent release as dissolved Ag chloro-complexes within the estuarine salinity gradient.
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Affiliation(s)
- Victoria N Deycard
- Université de Bordeaux, UMR 5805 EPOC-OASU, Allée Geoffroy Saint-Hilaire, 33615, Pessac Cedex, France
| | - Jörg Schäfer
- Université de Bordeaux, UMR 5805 EPOC-OASU, Allée Geoffroy Saint-Hilaire, 33615, Pessac Cedex, France.
| | - Jérôme C J Petit
- Université de Bordeaux, UMR 5805 EPOC-OASU, Allée Geoffroy Saint-Hilaire, 33615, Pessac Cedex, France
| | - Alexandra Coynel
- Université de Bordeaux, UMR 5805 EPOC-OASU, Allée Geoffroy Saint-Hilaire, 33615, Pessac Cedex, France
| | - Laurent Lanceleur
- Université de Bordeaux, UMR 5805 EPOC-OASU, Allée Geoffroy Saint-Hilaire, 33615, Pessac Cedex, France
| | - Lionel Dutruch
- Université de Bordeaux, UMR 5805 EPOC-OASU, Allée Geoffroy Saint-Hilaire, 33615, Pessac Cedex, France
| | - Cécile Bossy
- Université de Bordeaux, UMR 5805 EPOC-OASU, Allée Geoffroy Saint-Hilaire, 33615, Pessac Cedex, France
| | - Alexandre Ventura
- Lyonnaise des Eaux, Agence Diagnostic Assainissement, Centre Régional Aquitaine, F-33029, Bordeaux, France
| | - Gérard Blanc
- Université de Bordeaux, UMR 5805 EPOC-OASU, Allée Geoffroy Saint-Hilaire, 33615, Pessac Cedex, France
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9
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Rementeria A, Mikolaczyk M, Lanceleur L, Blanc G, Soto M, Schäfer J, Zaldibar B. Assessment of the effects of Cu and Ag in oysters Crassostrea gigas (Thunberg, 1793) using a battery of cell and tissue level biomarkers. MARINE ENVIRONMENTAL RESEARCH 2016; 122:11-22. [PMID: 27637811 DOI: 10.1016/j.marenvres.2016.09.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/29/2016] [Accepted: 09/04/2016] [Indexed: 06/06/2023]
Abstract
Oysters are considered sentinel organisms in environmental water quality monitoring programs in which cell and tissue level biomarkers are reliable tools. Copper (Cu) and silver (Ag) are present in relatively high concentrations in several estuaries, potentially affecting environmental and human health. Crassostrea gigas oysters were exposed during 28 days to a range of environmentally relevant concentrations of Cu and Ag alone or in mixture. Effects were studied through cell and tissue level biomarkers approach. Results indicated: changes in the Condition Index (CI), altered digestive gland epithelium and presence of histopathological alterations in the gonad and digestive gland of exposed oysters. A time-dependent increase in lipofuscin contents in exposed oysters and an increase in intralysosomal metal accumulation in digestive cells through the experiment were also recorded. The Integrative Biological Response (IBR) Index showed that even at low exposure levels, Ag and Cu can produce alterations on oysters' health status.
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Affiliation(s)
- Ane Rementeria
- CBET Research Grp, Dept Zoology and Animal Cell Biology, Sci and Technol Fac and Research Centre for Experimental Marine Biology and Biotechnology (PIE-UPV/EHU), University of the Basque Country (UPV/EHU), PO Box 644, E-48080 Bilbao, Basque Country, Spain; Université de Bordeaux, UMR 5805 EPOC, Allée Geoffroy St. Hilaire, CS50023, 33615 Pessac, France.
| | - Mathilde Mikolaczyk
- Université de Bordeaux, UMR 5805 EPOC, Allée Geoffroy St. Hilaire, CS50023, 33615 Pessac, France.
| | - Laurent Lanceleur
- Université de Bordeaux, UMR 5805 EPOC, Allée Geoffroy St. Hilaire, CS50023, 33615 Pessac, France.
| | - Gérard Blanc
- Université de Bordeaux, UMR 5805 EPOC, Allée Geoffroy St. Hilaire, CS50023, 33615 Pessac, France.
| | - Manu Soto
- CBET Research Grp, Dept Zoology and Animal Cell Biology, Sci and Technol Fac and Research Centre for Experimental Marine Biology and Biotechnology (PIE-UPV/EHU), University of the Basque Country (UPV/EHU), PO Box 644, E-48080 Bilbao, Basque Country, Spain.
| | - Jörg Schäfer
- Université de Bordeaux, UMR 5805 EPOC, Allée Geoffroy St. Hilaire, CS50023, 33615 Pessac, France.
| | - Beñat Zaldibar
- CBET Research Grp, Dept Zoology and Animal Cell Biology, Sci and Technol Fac and Research Centre for Experimental Marine Biology and Biotechnology (PIE-UPV/EHU), University of the Basque Country (UPV/EHU), PO Box 644, E-48080 Bilbao, Basque Country, Spain.
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de Souza Machado AA, Spencer K, Kloas W, Toffolon M, Zarfl C. Metal fate and effects in estuaries: A review and conceptual model for better understanding of toxicity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 541:268-281. [PMID: 26410702 DOI: 10.1016/j.scitotenv.2015.09.045] [Citation(s) in RCA: 156] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/09/2015] [Accepted: 09/09/2015] [Indexed: 05/12/2023]
Abstract
Metal pollution is a global problem in estuaries due to the legacy of historic contamination and currently increasing metal emissions. However, the establishment of water and sediment standards or management actions in brackish systems has been difficult because of the inherent transdisciplinary nature of estuarine processes. According to the European Commission, integrative comprehension of fate and effects of contaminants in different compartments of these transitional environments (estuarine sediment, water, biota) is still required to better establish, assess and monitor the good ecological status targeted by the Water Framework Directive. Thus, the present study proposes a holistic overview and conceptual model for the environmental fate of metals and their toxicity effects on aquatic organisms in estuaries. This includes the analysis and integration of biogeochemical processes and parameters, metal chemistry and organism physiology. Sources of particulate and dissolved metal, hydrodynamics, water chemistry, and mechanisms of toxicity are discussed jointly in a multidisciplinary manner. It is also hypothesized how these different drivers of metal behaviour might interact and affect metal concentrations in diverse media, and the knowledge gaps and remaining research challenges are pointed. Ultimately,estuarine physicochemical gradients, biogeochemical processes, and organism physiology are jointly coordinating the fate and potential effects of metals in estuaries, and both realistic model approaches and attempts.
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Affiliation(s)
- Anderson Abel de Souza Machado
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany; Department of Biology, Chemistry, and Pharmacy, Freie Universität Berlin, Altensteinstraße 6, 14195 Berlin, Germany; School of Geography, Queen Mary University of London, Mile End Road, London E1 4N, UK.
| | - Kate Spencer
- School of Geography, Queen Mary University of London, Mile End Road, London E1 4N, UK
| | - Werner Kloas
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany; Faculty of Mathematics and Natural Sciences I, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
| | - Marco Toffolon
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, 38123 Trento, Italy
| | - Christiane Zarfl
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany; Center for Applied Geosciences, Eberhard Karls Universität Tübingen, Hölderlinstr 12, 72074 Tübingen, Germany
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