1
|
Liu X, Wang Z, Wang C, Wang B, Cao H, Shan J, Zhang X. Mercury distribution, exposure and risk in Poyang Lake and vicinity, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 344:123409. [PMID: 38244906 DOI: 10.1016/j.envpol.2024.123409] [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: 09/18/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/22/2024]
Abstract
Mercury (Hg), especially methylmercury (MeHg), which is highly neurotoxic, is a global pollutant that can affect human health because of its accumulation in aquatic products. Poyang Lake, an inland lake in China, has been significantly affected by human activity, yet there is limited understanding of local mercury contamination and potential exposure pathways to humans. In this study, we explored the risks of mercury exposure by sampling sediments, plants, and aquatic organisms in the lake and surrounding areas and analyzing total Hg (THg) and MeHg levels. Sediment sampling was conducted at the main lake, rivers, rice paddies, and fishponds. Two dominant species of plants and 15 species of aquatic organisms were sampled and analyzed. We assessed the characteristics of mercury in sediments using the geo-accumulation index (Igeo), mercury exposure using the biomagnification factor (BMF) and biota sediment accumulation factor (BSAF), and risks using thresholds for adverse effects. The highest THg concentrations (137.04 ± 44.3 ng g-1 dw) were detected in the main lake sediments, whereas the highest MeHg concentrations (0.47 ± 0.6 ng g-1 dw) were detected in fishpond sediments. Mercury accumulation in the main lake sediments could be assessed as contaminated (Igeo > 0: 81.6%). Yellow catfish had the highest mercury concentration (THg 770.69 ± 199.7 ng g-1 dw; MeHg 741.93 ± 168.8 ng g-1 dw). Piscivores were adversely affected by carnivorous fish (50.8%), but all fish concentrations did not exceed the food safety standards recommend by China and the WHO. The mercury exposure results revealed significant Hg biomagnification and enrichment (BMF >1: 94.55%; BSAFmax = 1218). Long-term monitoring of aquatic organisms is warranted.
Collapse
Affiliation(s)
- Xu Liu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhangwei Wang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Chunjie Wang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bing Wang
- Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, 100091, China
| | - Huabin Cao
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Jihong Shan
- Wildlife and Plant Protection Center, Jiangxi Provincial Department of Forestry, Nanchang, 330006, China
| | - Xiaoshan Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
2
|
García-Risco M, Calatayud S, Pedrini-Martha V, Albalat R, Palacios Ò, Capdevila M, Dallinger R. A de novo evolved domain improves the cadmium detoxification capacity of limpet metallothioneins. Sci Rep 2023; 13:8895. [PMID: 37264073 DOI: 10.1038/s41598-023-35786-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/23/2023] [Indexed: 06/03/2023] Open
Abstract
Metallothioneins (MTs) constitute an important family of metal binding proteins. Mollusk MTs, in particular, have been used as model systems to better understand the evolution of their metal binding features and functional adaptation. In the present study two recombinantly produced MTs, LgiMT1 and LgiMT2, and their de novo evolved γ domain, of the marine limpet Lottia gigantea, were analyzed by electronic spectroscopy and mass spectrometry. Both MT proteins, as well as their γ domains, exhibit a strong binding specificity for Cd(II), but not for Zn(II) or Cu(I). The LgiMTs' γ domain renders an MII4(SCys)10 cluster with an increased Cd stoichiometry (binding 4 instead of 3 Cd2+ ions), representing a novel structural element in the world of MTs, probably featuring an adamantane 3D structure. This cluster significantly improves the Cd(II)-binding performance of the full length proteins and thus contributes to the particularly high Cd coping capacity observed in free-living limpets.
Collapse
Affiliation(s)
- Mario García-Risco
- Departament de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain
| | - Sara Calatayud
- Departament de Genètica, Facultat de Biologia, Microbiologia i Estadística and Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain
| | - Veronika Pedrini-Martha
- Institute of Zoology, Center of Molecular Biosciences, University of Innsbruck, Technikerstraße 25, 6020, Innsbruck, Austria
| | - Ricard Albalat
- Departament de Genètica, Facultat de Biologia, Microbiologia i Estadística and Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain
| | - Òscar Palacios
- Departament de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain
| | - Mercè Capdevila
- Departament de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Spain.
| | - Reinhard Dallinger
- Institute of Zoology, Center of Molecular Biosciences, University of Innsbruck, Technikerstraße 25, 6020, Innsbruck, Austria.
| |
Collapse
|
3
|
Castrec J, Pillet M, Receveur J, Fontaine Q, Le Floch S, Churlaud C, Lejeune P, Gobert S, Thomas H, Marengo M. Active and passive biomonitoring of trace elements, polycyclic aromatic hydrocarbons, and polychlorinated biphenyls in small Mediterranean harbours. MARINE POLLUTION BULLETIN 2023; 187:114578. [PMID: 36645999 DOI: 10.1016/j.marpolbul.2023.114578] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/29/2022] [Accepted: 01/01/2023] [Indexed: 06/17/2023]
Abstract
Pollution particularly affects coastal ecosystems due to their proximity to anthropic sources. Among those environments, harbours are subjected to marine traffic but also to accidental and chronic pollution. These areas are thus exposed to complex mixtures of contaminants such as trace elements and organic contaminants which can impact marine species, habitats, and ecosystem services. The monitoring of these compounds is thus a crucial issue for assessment of environmental health. In this context, the aim of the present work was to evaluate the chemical contamination of harbours in Corsica (NW Mediterranean) by measuring the bioaccumulation of trace elements, polycyclic aromatic hydrocarbons, and polychlorinated biphenyls in mussels, limpets, and sea cucumbers. The human health risks associated with seafood consumption were also assessed. Results reveal a relatively low contamination in the Corsican harbours studied compared to larger Mediterranean ports and suggest that the potential health risk for consumers eating seafood is low.
Collapse
Affiliation(s)
- Justine Castrec
- Station de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, France.
| | - Marion Pillet
- Station de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, France
| | | | - Quentin Fontaine
- Station de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, France
| | | | - Carine Churlaud
- Littoral Environnement et Sociétés (LIENSs), UMRi 7266, CNRS- La Rochelle Université, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Pierre Lejeune
- Station de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, France
| | - Sylvie Gobert
- Station de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, France; Université de Liège, Centre MARE, Laboratoire d'Océanologie, Sart Tilman, B6c, 4000 Liège, Belgium
| | - Hélène Thomas
- Littoral Environnement et Sociétés (LIENSs), UMRi 7266, CNRS- La Rochelle Université, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Michel Marengo
- Station de Recherches Sous-marines et Océanographiques (STARESO), Punta Revellata, BP33, 20260 Calvi, France
| |
Collapse
|
4
|
Braga AC, Rodrigues SM, Lourenço HM, Costa PR, Pedro S. Bivalve Shellfish Safety in Portugal: Variability of Faecal Levels, Metal Contaminants and Marine Biotoxins during the Last Decade (2011-2020). Toxins (Basel) 2023; 15:toxins15020091. [PMID: 36828406 PMCID: PMC9962144 DOI: 10.3390/toxins15020091] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/09/2023] [Accepted: 01/13/2023] [Indexed: 01/21/2023] Open
Abstract
Bivalves are a high-value product whose production has markedly increased, reaching 9863 tonnes in Portugal in 2021. Bivalves' habitats-lagoons, estuaries and coastal waters-are exposed to biological and anthropogenic contaminants, which can bioaccumulate in these organisms and pose a significant public health risk. The need to obtain a safe product for human consumption led to the implementation of standardised hygiene regulations for harvesting and marketing bivalve molluscs, resulting in routine monitoring of bivalve production areas for microbial quality, metal contaminants, and marine biotoxins. While excessive levels of biotoxins and metal contamination lead to temporary harvesting bans, high faecal contamination leads to area reclassification and impose post-harvest treatments. In this study, the seasonal and temporal variability of these parameters were analysed using historical data generated by the monitoring programme during the last decade. Moreover, the impact of the monitoring program on bivalve harvesting from 2011 to 2020 was assessed. This program presented a considerable improvement over time, with an increase in the sampling effort and the overall program representativeness. Finally, contamination risk, revising control measures, and defining recommendations for risk mitigation measures are given in the light of ten years' monitoring.
Collapse
Affiliation(s)
- Ana Catarina Braga
- S2AQUA—Collaborative Laboratory, Association for a Sustainable and Smart Aquaculture, Av. Parque Natural da Ria Formosa s/n, 8700-194 Olhão, Portugal
- IPMA, I.P.—Portuguese Institute of the Sea and Atmosphere, Av. Dr. Alfredo Magalhães Ramalho, 6, 1495-165 Lisboa, Portugal
- Correspondence: (A.C.B.); (S.P.)
| | - Susana Margarida Rodrigues
- IPMA, I.P.—Portuguese Institute of the Sea and Atmosphere, Av. Dr. Alfredo Magalhães Ramalho, 6, 1495-165 Lisboa, Portugal
| | - Helena Maria Lourenço
- IPMA, I.P.—Portuguese Institute of the Sea and Atmosphere, Av. Dr. Alfredo Magalhães Ramalho, 6, 1495-165 Lisboa, Portugal
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - Pedro Reis Costa
- S2AQUA—Collaborative Laboratory, Association for a Sustainable and Smart Aquaculture, Av. Parque Natural da Ria Formosa s/n, 8700-194 Olhão, Portugal
- IPMA, I.P.—Portuguese Institute of the Sea and Atmosphere, Av. Dr. Alfredo Magalhães Ramalho, 6, 1495-165 Lisboa, Portugal
- CCMAR—Centre of Marine Sciences, Campus of Gambelas, University of Algarve, 8005-139 Faro, Portugal
| | - Sónia Pedro
- IPMA, I.P.—Portuguese Institute of the Sea and Atmosphere, Av. Dr. Alfredo Magalhães Ramalho, 6, 1495-165 Lisboa, Portugal
- CIIMAR—Interdisciplinary Centre of Marine and Environmental Research, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
- Correspondence: (A.C.B.); (S.P.)
| |
Collapse
|
5
|
Mbandzi N, Vincent Nakin MD, Oyedeji AO. Temporal and spatial variation of heavy metal concentration in four limpet species along the southeast coast of South Africa. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 302:119056. [PMID: 35227843 DOI: 10.1016/j.envpol.2022.119056] [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: 11/24/2021] [Revised: 01/30/2022] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Rocky shores are experiencing heavy metal (HM) pollution as a result of anthropogenic activities. The information on the use of limpets Scutellastra spp. and Cellana sp. as bioindicators is limited. This study aimed to assess HM concentration in water samples, soft and shell tissues of four limpet species, Scutellastra granularis, S. longicosta; S. cochlear and Cellana capensis along the southeast coast of South Africa. Individual species were collected between 2019 and 2020 in four sites and four seasons during spring low tide. The physico-chemical parameters were simultaneously measured in situ with limpet species collection for correlation with HM. Concentration of Zn, As, Cd, Cu, Fe, Pb, Hg and Ni in limpet tissues were analysed using inductively coupled plasma optical emission spectrometry (ICP-OES). Data were explored using SPSS v26, GraphPad Prism v5, Primer v7 and MS-excel 2016. Temporal/spatial differences of physico-chemicals and HM in limpet tissues were evident. Heavy metal concentration was species specific e.g. Fe, Ni and were high in S. granularis, and Hg, As, Pb in C. capensis. The lower shore species S. longicosta and S. cochlear were notable accumulators of Zn and Cd. Limpet soft tissues concentrated 5-10 times magnitude of HM than shell tissues. This study provided a baseline information on the concentration of HM in marine limpets along the southeast coast of South Africa and suggest limpets as bioindicator species.
Collapse
Affiliation(s)
- Nokubonga Mbandzi
- Department of Biological and Environmental Science, Walter Sisulu University, Mthatha, South Africa; Risk and Vulnerability Science Centre, Walter Sisulu University, Mthatha, South Africa.
| | | | | |
Collapse
|