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Pereira-Garcia C, Bravo AG, Cosio C, Gallorini A, Leoni S, Cassin D, Guédron S, Adatte T, Cabrera-Brufau M, Sánchez O, Acinas SG, Amouroux D, Zonta R, Dominik J, Loizeau JL. Potential impact of tide-regulation barriers on the formation of methylmercury in the Venice Lagoon (Italy). JOURNAL OF HAZARDOUS MATERIALS 2025; 485:136747. [PMID: 39662351 DOI: 10.1016/j.jhazmat.2024.136747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2024] [Revised: 11/18/2024] [Accepted: 12/01/2024] [Indexed: 12/13/2024]
Abstract
Methylmercury (MeHg), a neurotoxic pollutant, is formed mainly under anaerobiosis. The "Modulo Sperimentale Elettromeccanico" (MOSE), built to temporarily close the Venice Lagoon and protect the city from flooding, induces changes in the hydrological regime, reducing water circulation and decreasing in the dissolved oxygen concentrations of the lagoon. Our study shows the potential changes in sediment and overlying water physico-chemistry in a simulated MOSE closing-event by incubating sediment cores for 48 h in the laboratory and deploying benthic chambers. In the incubated summer cores (September 2021), a significant increase in total Hg and MeHg concentrations in the water column was observed and associated with an increase in MeHg formation rates - particularly, MeHg formation rates doubled during the simulated MOSE-closing. This increase was associated to a release of dissolved organic carbon and to an enrichment of proteinaceous substances and reactive humic acids in the overlying waters. All these effects were not evident in late autumn (November 2019), when water temperature was 10 °C lower than in September 2021. Our study suggests that hydrological changes caused by the MOSE closure may in some periods increase MeHg concentrations within the Venice Lagoon.
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Affiliation(s)
- Carla Pereira-Garcia
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, ICM-CSIC, 08003 Barcelona, Catalunya, Spain.
| | - Andrea G Bravo
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, ICM-CSIC, 08003 Barcelona, Catalunya, Spain.
| | - Claudia Cosio
- Université de Reims Champagne Ardennes, UMR-I 02 INERIS-URCA-ULH SEBIO, Unité Stress Environnementaux et BIOsurveillance des milieux aquatiques, Reims, France
| | - Andrea Gallorini
- Department F.-A. Forel for Environmental and Aquatic Sciences, and Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland
| | - Simone Leoni
- Istituto di Scienze Marine, Consiglio Nazionale delle Ricerche (ISMAR-CNR), Castello 2737/F, 30122 Venezia, Italy
| | - Daniele Cassin
- Istituto di Scienze Marine, Consiglio Nazionale delle Ricerche (ISMAR-CNR), Castello 2737/F, 30122 Venezia, Italy
| | - Stéphane Guédron
- University of Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, 38000 Grenoble, France
| | - Thierry Adatte
- Institute of Earth Sciences (ISTE), University of Lausanne, 1015 Lausanne, Switzerland
| | - Miguel Cabrera-Brufau
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, ICM-CSIC, 08003 Barcelona, Catalunya, Spain
| | - Olga Sánchez
- Departament de Genètica i Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Silvia G Acinas
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, ICM-CSIC, 08003 Barcelona, Catalunya, Spain
| | - David Amouroux
- Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et les Matériaux, CNRS/UNIV Pau & Pays Adour, Pau, France
| | - Roberto Zonta
- Istituto di Scienze Marine, Consiglio Nazionale delle Ricerche (ISMAR-CNR), Castello 2737/F, 30122 Venezia, Italy
| | - Janusz Dominik
- Istituto di Scienze Marine, Consiglio Nazionale delle Ricerche (ISMAR-CNR), Castello 2737/F, 30122 Venezia, Italy
| | - Jean-Luc Loizeau
- Department F.-A. Forel for Environmental and Aquatic Sciences, and Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland.
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2
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Vogl A, Desjardins K, Ponton DE, Winkler G, Amyot M. Diminishing Mercury Bioaccumulation in Zooplankton along an Estuarine Salinity Gradient. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2025; 59:4142-4152. [PMID: 39967451 DOI: 10.1021/acs.est.4c12263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2025]
Abstract
Estuarine transition zones (ETZs) are biogeochemically complex, nutrient-rich environments supporting diverse and productive food webs. They may also be sites of microbial production of methylmercury (MeHg) and bioaccumulation of this neurotoxicant at the base of the food web. However, the environmental drivers controlling these mechanisms are unclear. We studied the pattern of MeHg bioaccumulation in zooplankton along the 200 km ETZ of a large North American estuary, the St. Lawrence Estuary (Québec, Canada). Our approach integrated the dynamic variation in ETZ geochemistry, focusing on MeHg speciation change, alongside ecological factors, including community composition and stable isotopic tracers of diet and habitat. MeHg bioaccumulation decreased with distance downstream along the ETZ, driven by the salinity gradient and traced by the isotopic signature of sulfur in zooplankton. MeHg speciation modeling suggested that complexation to dissolved organic matter may be used as a proxy of the trophic transfer of MeHg to zooplankton. Further, the binding of MeHg to organic matter was reduced by the presence of chloride, thus reducing the trophic transfer of MeHg. We propose a conceptual model for MeHg cycling in ETZ of large estuaries that hypothesizes that higher-level consumers in turbid upstream regions may face heightened risks of MeHg toxicity but that Hg levels diminish drastically as salinity increases.
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Affiliation(s)
- Annabelle Vogl
- Déparment de Sciences Biologiques, Université de Montréal, Montréal, Québec H2V 0B3, Canada
| | - Kimberley Desjardins
- Déparment de Sciences Biologiques, Université de Montréal, Montréal, Québec H2V 0B3, Canada
- Ministère de l'Environnement, de la Lutte Contre les Changements Climatiques, de la Faune et des Parcs, Longueuil, Québec J4K 2TF, Canada
| | - Dominic E Ponton
- Déparment de Sciences Biologiques, Université de Montréal, Montréal, Québec H2V 0B3, Canada
| | - Gesche Winkler
- Institut des Sciences de la mer, Québec-Océan, Université du Québec à Rimouski, Rimouski, Québec G5L 2A6, Canada
| | - Marc Amyot
- Déparment de Sciences Biologiques, Université de Montréal, Montréal, Québec H2V 0B3, Canada
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3
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Picone M, Giurin A, Distefano GG, Corami F, Turetta C, Volpi Ghirardini A, Basso M, Panzarin L, Farioli A, Bacci M, Sebastanelli C, Morici F, Artese C, De Sanctis A, Galuppi M, Imperio S, Serra L. Mercury and rare earth elements (REEs) show different spatial trends in feathers of Kentish plover (Charadrius alexandrinus) breeding along the Adriatic Sea coast, Italy. ENVIRONMENTAL RESEARCH 2024; 252:119140. [PMID: 38751003 DOI: 10.1016/j.envres.2024.119140] [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: 01/22/2024] [Revised: 04/04/2024] [Accepted: 05/12/2024] [Indexed: 05/19/2024]
Abstract
Feather analysis is an ethical and effective method for assessing the exposure of wild birds to environmental contamination due to trace elements and organic pollutants. We used feather to monitor the exposure to three toxic and non-essential metals (Hg, Cd, and Pb) and rare earth elements (REEs) of Kentish plover (Charadrius alexandrinus) breeding in different coastal areas (Veneto, Emilia-Romagna, Marche, Abruzzo, and Apulia) along the Italian coast of the Adriatic Sea. Feathers (n = 113) were collected from April to June. Feather concentrations evidenced a significant exposure to Hg (13.05 ± 1.71 mg kg-1 dw) and REEs (447.3 ± 52.8 ng g-1 dw) in the Kentish plover breeding in Veneto (n = 21) compared to the other coastal areas, with several individuals showing Hg concentrations above the adverse effect (5 mg kg-1 dw) and high-risk (9.14 mg kg-1 dw) thresholds reported for birds. Higher REE concentrations compared to Marche (n = 29), Abruzzo (n = 11) and Apulia (n = 13) were also reported for birds breeding in Emilia-Romagna (474.9 ± 41.9 ng g-1 dw; n = 29). The exposure to Cd and Pb was low in all the coastal areas, and only a few samples (n = 6 and n = 4 for Cd and Pb, respectively) exceeded the adverse effect thresholds (0.1 and 4 mg kg-1 for Cd and Pb, respectively). A significant sex-related difference was observed for REE-concentrations, with females showing higher concentration than males. These data highlight the need to monitor the exposure of the Kentish plover to Hg and REEs, especially in the northern basin of the Adriatic Sea, since these elements might negatively affect species' reproductive success and threaten its conservation.
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Affiliation(s)
- Marco Picone
- Department of Environmental Sciences, Informatics, and Statistics, Ca' Foscari University Venice, Via Torino 155, 30172, Venezia-Mestre, Italy.
| | - Alessia Giurin
- Department of Environmental Sciences, Informatics, and Statistics, Ca' Foscari University Venice, Via Torino 155, 30172, Venezia-Mestre, Italy
| | - Gabriele Giuseppe Distefano
- Department of Environmental Sciences, Informatics, and Statistics, Ca' Foscari University Venice, Via Torino 155, 30172, Venezia-Mestre, Italy
| | - Fabiana Corami
- National Council for the Research - Institute of Polar Sciences, Via Torino 155, 30172, Venezia-Mestre, Italy
| | - Clara Turetta
- National Council for the Research - Institute of Polar Sciences, Via Torino 155, 30172, Venezia-Mestre, Italy
| | - Annamaria Volpi Ghirardini
- Department of Environmental Sciences, Informatics, and Statistics, Ca' Foscari University Venice, Via Torino 155, 30172, Venezia-Mestre, Italy
| | - Marco Basso
- Via Gianbattista Verci, 25/4, 35128, Padua, Italy
| | - Lucio Panzarin
- Via Giacomo Leopardi 5, 30020, Torre di Mosto, VE, Italy
| | - Alessio Farioli
- Associazione Ornitologi Dell'Emilia Romagna, Via Giovanni Boccaccio 23, 40026, Imola, BO, Italy
| | - Mattia Bacci
- Associazione Ornitologi Dell'Emilia Romagna, Via Giovanni Boccaccio 23, 40026, Imola, BO, Italy
| | | | - Francesca Morici
- Ornitologi Marchigiani ETS, Via Giuseppe Verdi 10/A, 62100, Macerata, Italy
| | - Carlo Artese
- Servizio Scientifico Parco Nazionale Del Gran Sasso e Monti Della Laga, Via Del Convento 1, 67010, Assergi, AQ, Italy
| | - Augusto De Sanctis
- Stazione Ornitologica Abruzzese, Via Antonio De Nino 3, 65126, Pescara, Italy
| | - Mirko Galuppi
- Via Antonio De Marinis 110, 70021, Acquaviva Delle Fonti, BA, Italy
| | - Simona Imperio
- Area Avifauna Migratrice, Istituto Superiore per La Protezione e La Ricerca Ambientale (ISPRA), Via Ca' Fornacetta 9, 40064, Ozzano Emilia, BO, Italy
| | - Lorenzo Serra
- Area Avifauna Migratrice, Istituto Superiore per La Protezione e La Ricerca Ambientale (ISPRA), Via Ca' Fornacetta 9, 40064, Ozzano Emilia, BO, Italy
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4
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Sun C, Wang X, Qiao X. Multimedia fate simulation of mercury in a coastal urban area based on the fugacity/aquivalence method. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 915:170084. [PMID: 38224886 DOI: 10.1016/j.scitotenv.2024.170084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/17/2024]
Abstract
Due to intensive industrial production and living activities, urban areas are the main anthropogenic mercury (Hg) emission sources. After entering the environment through exhaust gases, wastewater or waste residues, Hg can migrate and transform among different environmental compartments in various species, such as elemental mercury (Hg0), divalent mercury (Hg2+) and methylmercury (MeHg). Studies have yet to report on the multimedia behaviors of Hg in urban areas due to the complexity of the processes involved. In this study, the atmospheric Hg emission in Dalian, a coastal city in Northeast China, was estimated by an anthropogenic emission inventory, and a Level III multimedia model was constructed based on the fugacity/aquivalence method to simulate the fate of Hg in air, water, soil, sediment, vegetation and film. The total annual atmospheric emission was 9.91 t, of which coal combustion and non-coal sources accounted for 70.1 % and 29.9 %, respectively. Atmospheric emission and advection were dominated by Hg0, and aquatic emission and advection were dominated by Hg2+. The migration of air-vegetation, vegetation-soil and soil-air were three important pathways of Hg in urban areas. The model was validated by collecting local soil and vegetation samples and regional air, seawater and sediment monitoring data. The scenario simulation indicated that the local load would decrease to different extents with a 21.0 % reduction in atmospheric Hg emission by implementing the "coal-to-gas" measures. Our developed model can characterize the fate of Hg in coastal urban areas and provide a reference for control strategies.
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Affiliation(s)
- Chang Sun
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Xiaochen Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Xianliang Qiao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
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5
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Tesán-Onrubia JA, Heimbürger-Boavida LE, Dufour A, Harmelin-Vivien M, García-Arévalo I, Knoery J, Thomas B, Carlotti F, Tedetti M, Bănaru D. Bioconcentration, bioaccumulation and biomagnification of mercury in plankton of the Mediterranean Sea. MARINE POLLUTION BULLETIN 2023; 194:115439. [PMID: 37639915 DOI: 10.1016/j.marpolbul.2023.115439] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/30/2023] [Accepted: 08/18/2023] [Indexed: 08/31/2023]
Abstract
Plankton plays a prominent role in the bioaccumulation of mercury (Hg). The MERITE-HIPPOCAMPE campaign was carried out in spring 2019 along a north-south transect including coastal and offshore areas of the Mediterranean Sea. Sampling of sea water and plankton by pumping and nets was carried out in the chlorophyll maximum layer. Two size-fractions of phytoplankton (0.7-2.7 and 2.7-20 μm) and five of zooplankton (between 60 and >2000 μm) were separated, and their total mercury (THg) and monomethylmercury (MMHg) contents were measured. Bioconcentration of THg was significantly higher in the smallest phytoplankton size-fraction dominated by Synechococcus spp. The bioaccumulation and biomagnification of MMHg in zooplankton was influenced by size, food sources, biochemical composition and trophic level. MMHg was biomagnified in the plankton food web, while THg decreased toward higher trophic levels. Higher MMHg concentrations were measured in oligotrophic areas. Plankton communities in the Southern Mediterranean Sea had lower MMHg concentrations than those in the Northern Mediterranean Sea. These results highlighted the influence of environmental conditions and trophodynamics on the transfer of Hg in Mediterranean plankton food webs, with implications for higher trophic level consumers.
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Affiliation(s)
| | | | - Aurélie Dufour
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO UM110, Marseille, France
| | | | | | - Joël Knoery
- Ifremer, CCEM Contamination Chimique des Ecosystèmes Marins, F-44311 Nantes, France
| | - Bastien Thomas
- Ifremer, CCEM Contamination Chimique des Ecosystèmes Marins, F-44311 Nantes, France
| | - François Carlotti
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO UM110, Marseille, France
| | - Marc Tedetti
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO UM110, Marseille, France
| | - Daniela Bănaru
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO UM110, Marseille, France.
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6
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Qiao P, Wang S, Li J, Zhao Q, Wei Y, Lei M, Yang J, Zhang Z. Process, influencing factors, and simulation of the lateral transport of heavy metals in surface runoff in a mining area driven by rainfall: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159119. [PMID: 36183764 DOI: 10.1016/j.scitotenv.2022.159119] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/12/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
The lateral transport of heavy metals can expand the scope of original contamination, and an accurate prediction of heavy metal migration is necessary to control heavy metal transport. However, previous studies have mainly focused on the migration of soil pollutants in the runoff-soil-groundwater system, whereas research on the lateral migration of heavy metals in surface soil driven by rainfall is relatively scarce. Therefore, in this study we analyzed the horizontal migration of water-soluble heavy metals with surface runoff and non-water-soluble heavy metals with sediment particles, investigated the main factors affecting the processes of runoff and sediment transport and the main factors affecting the mobility of heavy metals in soils, summarized the existing methods for the simulation of heavy metal transportation. The construction of a lateral migration model based on the migration mechanism of soil heavy metals, the hydrological model, and the application of the lateral migration model should be the focus of future research. This study provides a theoretical basis for establishing a model of the lateral migration of soil heavy metals and is of great significance for the prevention and control of the risks related to the lateral migration of soil heavy metals.
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Affiliation(s)
- Pengwei Qiao
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China.
| | - Shuo Wang
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China.
| | - Jiabin Li
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China
| | - Qianyun Zhao
- YuHuan Environmental Technology Co., Ltd., Shijiazhuang 050051, China
| | - Yan Wei
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China
| | - Mei Lei
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Jun Yang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhongguo Zhang
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China
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7
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Picone M, Distefano GG, Benhene GA, Corami F, Basso M, Panzarin L, Carabelli C, Volpi Ghirardini A. Seabirds as Biomonitors of Mercury Bioavailability in the Venice Lagoon. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 110:2. [PMID: 36484834 DOI: 10.1007/s00128-022-03650-z] [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: 06/27/2022] [Accepted: 11/04/2022] [Indexed: 06/17/2023]
Abstract
Seabirds accumulate mercury (Hg) due to their long-life span together with their high trophic position. A Hg monitoring in Venice's Lagoon using three seabird species occupying different trophic habitat (Thalasseus sandvicensis, Ichthyaetus melanocephalus, and Chroicocephalus ridibundus) confirmed that fledgelings might effectively be used as sentinels of Hg bioavailability. The significant differences in Hg residues in feathers observed among the species highlighted a possible differential exposure due to different diets, with C. ridibundus accumulating more Hg than the other species. Average residues in feathers were not above the threshold associated with adverse effects on birds (5 mg kg- 1). Nevertheless, a large part of the C. ridibundus individuals (58%) exceeded the adverse effect level, underlining the need for strengthening Hg monitoring. Seabirds indeed may provide relevant insight on Hg transfer in food webs and a better picture of the hazards to men when bird species forage on species exploited for human consumption.
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Affiliation(s)
- Marco Picone
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Campus Scientifico via Torino 155, I-30170, Mestre, Venezia, Italy.
| | - Gabriele Giuseppe Distefano
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Campus Scientifico via Torino 155, I-30170, Mestre, Venezia, Italy
| | - Godbless Adu Benhene
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Campus Scientifico via Torino 155, I-30170, Mestre, Venezia, Italy
| | - Fabiana Corami
- Istituto di Scienze Polari, Consiglio Nazionale delle Ricerche, Via Torino 155, I-30170, Mestre, Venezia, Italy
| | | | - Lucio Panzarin
- Associazione Naturalistica Sandonatese, c/o Centro Didattico Naturalistico il Pendolino, via Romanziol 130, 30020, Noventa di Piave, Venezia, Italy
| | - Caterina Carabelli
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Campus Scientifico via Torino 155, I-30170, Mestre, Venezia, Italy
| | - Annamaria Volpi Ghirardini
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Campus Scientifico via Torino 155, I-30170, Mestre, Venezia, Italy
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8
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Yang B, Ren S, Zhang K, Li S, Zou Z, Zhao X, Li J, Ma Y, Zhu X, Fang W. Distribution of trace metals in a soil-tea leaves-tea infusion system: characteristics, translocation and health risk assessment. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:4631-4645. [PMID: 35247121 DOI: 10.1007/s10653-021-01190-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
The effects of metal pollution on tea are of great concern to consumers. We apply Geographic information systems technology to study the distribution of heavy metal elements in tea plantation ecosystems in Jiangsu Province, explore the relationships among metals in the soil, tea leaves and tea infusions, and assess the human safety risks of metals. The concentrations of nine metals in a soil-tea leaves-tea infusion system were studied at 100 randomly selected tea plantations in Jiangsu Province, China. Concentrations of selected metals, zinc (Zn), nickel (Ni), manganese (Mn), chromium (Cr) and copper (Cu), were quantified using an inductively coupled plasma-optical emission spectrometer (ICP-OES), and cadmium (Cd), arsenic (As), plumbum (Pb) and mercury (Hg) were quantified using inductively coupled plasma-mass spectrometry (ICP-MS). Arc-Map 10.3 was used for the spatial analysis of metals in soil, tea leaves and tea infusions. We found that the contents of Mn, Ni and Zn are high level in soil, tea leaves and tea infusions. The Mn level showed a spatial distribution pattern with greater concentrations at the junction of Nanjing and Yangzhou, southwest of Changzhou and west of Suzhou. The hazard index (HI) values in north-central Nanjing, southern Suzhou, southwestern Changzhou and northern Lianyungang were relatively greater. The Zn, Ni, Mn, Cr and Cu levels in the soil-tea infusion system were 17.3, 45.5, 54.5, 1.5 and 14.3%, respectively. The order of the leaching rates of the elements was Ni > Cr > Zn > Mn > Cu. The relative contribution ratios of HI were in the order of Mn > Ni > Cu > Zn > Cr > Pb > Cd > As > Hg. In tea infusions, the Mn level has the greatest potential health risks to consumers. Moreover, using Csoil it was inferred that the safety thresholds of Zn, Ni, Mn, Cr and Cu in soil were 27,700, 50, 1230, 493,000 and 16,800 mg L-1, respectively. The content of heavy metals in soil and tea varies greatly in different regions of Jiangsu Province, 92% of the soil has heavy metal content that meets the requirements of pollution-free tea gardens, 91% of tea samples met the requirements of green food tea. The thresholds for Ni (50 mg L-1) and Mn (1230 mg L-1) can be used as maximum limits in tea plantation soils. The consumption of tea infusions did not pose metal-related risks to human health.
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Affiliation(s)
- Bin Yang
- College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Shuang Ren
- College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Kexin Zhang
- College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Song Li
- Agricultural Technology Extension Station of Nanjing Agricultural and Rural Bureau, Nanjing, 210095, China
| | - Zhongwei Zou
- Department of Plant Science, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Xue Zhao
- College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Jinqiu Li
- College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Yuanchun Ma
- College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Xujun Zhu
- College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, Jiangsu Province, 210095, People's Republic of China
| | - Wanping Fang
- College of Horticulture, Nanjing Agricultural University, No.1 Weigang, Nanjing, Jiangsu Province, 210095, People's Republic of China.
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9
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Marchese E, Bizzotto EC, Giubilato E, Semenzin E, Marcomini A. Pre-industrial sediment concentrations of metals: insights from the Venice lagoon (Italy). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:85829-85838. [PMID: 36242659 DOI: 10.1007/s11356-022-23378-x] [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: 02/22/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
This study investigated the occurrence of selected metals and metalloids (As, Cd, Cr, Cu, Hg, Ni, Pb, Zn) in radio-dated sediment cores from a coastal lagoon (Lagoon of Venice, Italy) by critically reviewing and grouping available data. Pre-industrial concentrations (pICs, estimated for the period before the early 1900s) for the Venice lagoon are identified according to the 2σ statistical procedure (2σ-pICs), i.e., the upper bound values of the dataset distribution. Results show the following 2σ-pICs (µg/g, d.w.): As 15,9; Cd 0,6; Cr 38,0; Cu 18,1; Hg 1,1; Ni 32,9; Pb 29,4; Zn 94,5. Most of the estimated 2σ-pICs are comparable to previously assessed background values. In the case of Hg, on the contrary, 2σ-pIC is remarkably higher than background values, reflecting a significant anthropogenic contribution also in the pre-industrial period. The results of this work may support the evaluation of the temporal evolution of metal concentrations in sediments of the Venice lagoon. Results are compared with background concentrations (BC) observed in previous studies conducted in the lagoon and in other areas of the Adriatic Sea, as well as with benchmarks set in Italy for sediment assessment.
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Affiliation(s)
- Enrico Marchese
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, via Torino 155, 30172, Mestre-Venice, Italy
| | - Elisa Chiara Bizzotto
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, via Torino 155, 30172, Mestre-Venice, Italy
| | - Elisa Giubilato
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, via Torino 155, 30172, Mestre-Venice, Italy
| | - Elena Semenzin
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, via Torino 155, 30172, Mestre-Venice, Italy
| | - Antonio Marcomini
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, via Torino 155, 30172, Mestre-Venice, Italy.
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Xiao K, Tamborski J, Wang X, Feng X, Wang S, Wang Q, Lin D, Li H. A coupling methodology of the analytic hierarchy process and entropy weight theory for assessing coastal water quality. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:31217-31234. [PMID: 35001278 DOI: 10.1007/s11356-021-17247-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 10/24/2021] [Indexed: 06/14/2023]
Abstract
Rapid economic development in coastal areas has gradually increased the risk of coastal water quality deterioration. The assessment methods of coastal water quality are multifarious, but many depend on either subjective judgment or objective calculation. We proposed a weighted sum methodology by integrating the subjective analytic hierarchy process and objective entropy theory (AHP-entropy weight methodology) to obtain an overall evaluation of coastal water quality. The mathematical models to transform the biochemical and physical parameter values and soluble substance concentrations into index scores have been formulated in comparison to the national water quality classification scheme. The application of the AHP-entropy weight methodology was demonstrated in the nearshore area of Yangjiang city, China, based on 23 seawater sampling stations in autumn 2017 and spring 2018. Datasets including biochemical and physical parameters, nutrients, and heavy metals have been converted into water quality index scores based on the proposed mathematical model. Results revealed that the overall water quality fell into the "good" class in both sampling seasons. The spatial distribution of the water quality index scores demonstrated that the relatively worse water quality occurred in estuarine and nearshore areas, signifying the negative effect of coastal anthropogenic activities. The statistical analyses like the hierarchical cluster analysis interpreted that the river input acted as a main source of pollutants in the study area. The AHP-entropy weight methodology could be a preferred way to assist decision-makers in properly evaluating the current state of coastal water quality in an unbiased, objective manner.
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Affiliation(s)
- Kai Xiao
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Joseph Tamborski
- Department of Ocean & Earth Sciences, Old Dominion University, Norfolk, VA, 23529, USA
| | - Xuejing Wang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Xiaobo Feng
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Sichen Wang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Qianqian Wang
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China
| | - Debei Lin
- Hailing Island Nation Wetland Park of Mangrove Forest, Yangjiang, 529500, Guangdong, China
| | - Hailong Li
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China.
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China.
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11
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Cossa D, Knoery J, Bănaru D, Harmelin-Vivien M, Sonke JE, Hedgecock IM, Bravo AG, Rosati G, Canu D, Horvat M, Sprovieri F, Pirrone N, Heimbürger-Boavida LE. Mediterranean Mercury Assessment 2022: An Updated Budget, Health Consequences, and Research Perspectives. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:3840-3862. [PMID: 35244390 DOI: 10.1021/acs.est.1c03044] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Mercury (Hg) and especially its methylated species (MeHg) are toxic chemicals that contaminate humans via the consumption of seafood. The most recent UNEP Global Mercury Assessment stressed that Mediterranean populations have higher Hg levels than people elsewhere in Europe. The present Critical Review updates current knowledge on the sources, biogeochemical cycling, and mass balance of Hg in the Mediterranean and identifies perspectives for future research especially in the context of global change. Concentrations of Hg in the Western Mediterranean average 0.86 ± 0.27 pmol L-1 in the upper water layer and 1.02 ± 0.12 pmol L-1 in intermediate and deep waters. In the Eastern Mediterranean, Hg measurements are in the same range but are too few to determine any consistent oceanographical pattern. The Mediterranean waters have a high methylation capacity, with MeHg representing up to 86% of the total Hg, and constitute a source of MeHg for the adjacent North Atlantic Ocean. The highest MeHg concentrations are associated with low oxygen water masses, suggesting a microbiological control on Hg methylation, consistent with the identification of hgcA-like genes in Mediterranean waters. MeHg concentrations are twice as high in the waters of the Western Basin compared to the ultra-oligotrophic Eastern Basin waters. This difference appears to be transferred through the food webs and the Hg content in predators to be ultimately controlled by MeHg concentrations of the waters of their foraging zones. Many Mediterranean top-predatory fish still exceed European Union regulatory Hg thresholds. This emphasizes the necessity of monitoring the exposure of Mediterranean populations, to formulate adequate mitigation strategies and recommendations, without advising against seafood consumption. This review also points out other insufficiencies of knowledge of Hg cycling in the Mediterranean Sea, including temporal variations in air-sea exchange, hydrothermal and cold seep inputs, point sources, submarine groundwater discharge, and exchanges between margins and the open sea. Future assessment of global change impacts under the Minamata Convention Hg policy requires long-term observations and dedicated high-resolution Earth System Models for the Mediterranean region.
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Affiliation(s)
- Daniel Cossa
- Université Grenoble Alpes, ISTerre, CS 40700, 38058 Grenoble Cedex 9, France
| | - Joël Knoery
- Ifremer, Centre Atlantique de Nantes, BP 44311, 44980 Nantes, France
| | - Daniela Bănaru
- Aix Marseille Université, CNRS/INSU, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288 Marseille, France
| | - Mireille Harmelin-Vivien
- Aix Marseille Université, CNRS/INSU, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288 Marseille, France
| | - Jeroen E Sonke
- Géosciences Environnement Toulouse, CNRS/Observatoire Midi-Pyrénées (OMP)/Université de Toulouse, 31400 Toulouse, France
| | - Ian M Hedgecock
- Istituto sull'inquinamento atmosferico, CNR-IIA, 87036 Rende, Italy
| | | | - Ginevra Rosati
- Istituto Nazionale di Oceanografia e di Geofisca Sperimentale (OGS), 34010 Trieste, Italy
| | - Donata Canu
- Istituto Nazionale di Oceanografia e di Geofisca Sperimentale (OGS), 34010 Trieste, Italy
| | | | | | - Nicola Pirrone
- Istituto sull'inquinamento atmosferico, CNR-IIA, 87036 Rende, Italy
| | - Lars-Eric Heimbürger-Boavida
- Aix Marseille Université, CNRS/INSU, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, 13288 Marseille, France
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