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Leung RKL, Chui APY, Liu X, Lee HW, Leung MML, Wang Y, Hu M, Kwok KWH, Wu RSS, Jin L, Kong HK, Fang JKH. Bioaccumulation of pollutants in the green-lipped mussel Perna viridis: Assessing pollution abatement in Victoria Harbour and its adjacent aquaculture area, Hong Kong, and the minimal human health risks from mussel consumption. MARINE POLLUTION BULLETIN 2024; 201:116086. [PMID: 38387219 DOI: 10.1016/j.marpolbul.2024.116086] [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: 07/24/2023] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/24/2024]
Abstract
The green-lipped mussel Perna viridis was utilised for pollution biomonitoring in Victoria Harbour and its adjacent aquaculture area in Hong Kong. P. viridis was collected from a reference site and redeployed at five study sites for five weeks during the dry and wet seasons of 2019. Our study found various polycyclic aromatic hydrocarbons (PAHs) and heavy metals in the mussel tissue, while polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) were not detected. P. viridis at the reference site generally displayed lower levels of pollutants. Comparing with previous research in the 1980s and 2000s, we observed substantial reduction in the tissue levels of PAHs, PCBs, OCPs and heavy metals in P. viridis. The human health risks associated with consuming these mussels were determined to be insignificant. Our findings imply that the Harbour Area Treatment Scheme has been effective in improving the water quality in Victoria Harbour and its adjacent aquaculture area.
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Affiliation(s)
- Ryan Kar-Long Leung
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Apple Pui Yi Chui
- Simon F.S. Li Marine Science Laboratory, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China; State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Xiaoshou Liu
- College of Marine Life Sciences and Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266003, China
| | - Hang-Wai Lee
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Matthew Ming-Lok Leung
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Youji Wang
- International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, Shanghai 201306, China
| | - Menghong Hu
- International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, Shanghai 201306, China
| | - Kevin Wing Hin Kwok
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China; Research Institute for Land and Space, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Rudolf Shiu Sun Wu
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China; Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong SAR, China
| | - Ling Jin
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China; Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China; Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Hang-Kin Kong
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China.
| | - James Kar-Hei Fang
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China; Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China; Research Institute for Land and Space, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China; Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China.
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Rahman M, Saima J, Rima SA, Hossain MIS, Das DK, Bakar MA, Siddique MAM. Ecological risks of heavy metals on surficial sediment of Nijhum Dweep (Island), an important biodiversity area of Bangladesh. MARINE POLLUTION BULLETIN 2022; 179:113688. [PMID: 35490486 DOI: 10.1016/j.marpolbul.2022.113688] [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: 10/11/2021] [Revised: 03/09/2022] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
Ten surficial sediment samples (up to a depth of 3 cm) were randomly collected during the pre-monsoon and analyzed for nine heavy metals using an atomic absorption spectrophotometer (AAS) to assess the distribution, contamination levels, and potential sources of heavy metals. The particle size distribution of the sediments was also investigated using a laser particle size analyzer. The mean concentration (mg/kg) of the analyzed metals followed a decreasing order of Fe (4706.24) > Mn (95.20) > Cu (36.97) > Zn (20.65) > Ni (9.26) > Cr (7.20) > Pb (5.63) > Co (5.52) > Cd (0.29). Surficial sediment of the Island was low to moderately contaminated by Cd and, to a laser extent by Cu in terms of enrichment factor (EF), geo-accumulation index (Igeo), and contamination factor. Ecologically, the Nijhum Dweep area was at low to moderate risk, where Cd was the most potential ecological risk factor. The Pearson correlation analysis revealed a significant positive correlation among Cr, Pb, Zn, Mn, Cd, Fe, Co, Ni, and silt particles, whereas a negative correlation with sand particles. No correlation was found with Cu and other metals except clay particles.
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Affiliation(s)
- Mahfuzur Rahman
- Department of Oceanography, Noakhali Science and Technology University, Noakhali 3814, Bangladesh.
| | - Jerin Saima
- Department of Oceanography, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Sabrina Akhter Rima
- Department of Oceanography, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Md Imam Sohel Hossain
- Institute of Mining, Mineralogy and Metallurgy, Bangladesh Council of Scientific and Industrial Research, Jaypurhat, Bangladesh
| | - Delip K Das
- Department of Zoology, Jagannath University, Dhaka 1100, Bangladesh
| | - Muhammad Abu Bakar
- Bangladesh Council of Scientific and Industrial Research, Chattogram, Bangladesh
| | - Mohammad Abdul Momin Siddique
- Department of Oceanography, Noakhali Science and Technology University, Noakhali 3814, Bangladesh; University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Zatisi 728/II, 389 25 Vodnany, Czech Republic
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Proshad R, Abdullah Al M, Islam MS, Khadka S, Kormoker T, Uddin M, Modeo L. Investigation of trace metals in riverine waterways of Bangladesh using multivariate analyses: spatial toxicity variation and potential health risk assessment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:31872-31884. [PMID: 33619618 DOI: 10.1007/s11356-021-13077-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
Minute quantities of trace metals have delirious effects in the human body causing acute and chronic toxicities. These trace metals have the ability to bind with enzymes and proteins causing an alteration in their activity, and, consequently, their damage. In this study, water samples were collected from five sites in Rupsa River (Bangladesh) during dry and wet seasons aiming to assess the trace metal concentration and the correlated health risk for people living in the area. Six trace metals, namely arsenic (Ar), cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb), and nickel (Ni), were measured for further analyzing their spatial and seasonal variations. The measured trace metal concentrations followed this decreasing order: Cr > Pb > As > Cu > Ni > Cd for the dry season, and Cr > Pb > As > Cu > Ni > Cd for the wet season. Among the trace metals, As, Ni, Cr, and Pb exhibited a statistically significative variation throughout the study period. The PCA analysis accounted for 64.5% and 64.4% total variations of the trace metals in dry and wet seasons, respectively. The Euclidean distance of trace metals in water samples across five sites showed significantly different distribution patterns, which were further confirmed by PERMANOVA. Furthermore, CAP model disclosed that trace metals are source-specific: brickfields and sewage effluents were potential sources for Cd, whereas different industries were potential sources for As, Cr, Cu, Ni, and Pb. Correlation analysis showed that Ni and Cr significantly correlated with pH and electrical conductivity. Correlation among the trace metals unveiled that they depended on each other as for their origin, magnitude, and existence in the riverine waterways. As for the health risk assessment, a non-carcinogenic health hazard due to ingestion during regular activities and dermal contact during fishing activity to all kind of people (adult males, adult females, and children) in the studied area was retrieved based on the hazard index (HI) of trace metals, which was higher than the recommended value (HI > 1). Moreover, also the carcinogenic risks of Ni and As due to regular activities via ingestion and dermal contact pathways were higher than the standard value (CR > 1.0E-04), suggesting the occurrence of cancer risk to humans in the study area.
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Affiliation(s)
- Ram Proshad
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, Sichuan, China
- Department of Environmental Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mamun Abdullah Al
- Department of Environmental Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
- Faculty of Marine Sciences and Fisheries, Institute of Marine Sciences, University of Chittagong, Bangladesh, Chittagong, 4331, Bangladesh.
| | - Md Saiful Islam
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Sujan Khadka
- Department of Environmental Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Tapos Kormoker
- Department of Emergency Management, Patuakhali Science and Technology University, Patuakhali 8602, Dumki, Bangladesh
| | - Minhaz Uddin
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Letizia Modeo
- Department of Biology, University of Pisa, Via A. Volta 4/6, 56126 Pisa, Pisa, Italy
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Lartigue JE, Charrasse B, Reile B, Descostes M. Aqueous inorganic uranium speciation in European stream waters from the FOREGS dataset using geochemical modelling and determination of a U bioavailability baseline. CHEMOSPHERE 2020; 251:126302. [PMID: 32146184 DOI: 10.1016/j.chemosphere.2020.126302] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 02/15/2020] [Accepted: 02/20/2020] [Indexed: 06/10/2023]
Abstract
The concentration of the bioavailable uranium fraction (Ubio) at the European scale was deduced by geochemical modelling considering several definitions found in the literature and the FOREGS European stream waters geochemical atlas dataset to produce a Ubio baseline. A sensitivity analysis was performed using three thermodynamic databases. We also investigated the link between total dissolved uranium (Uaq) concentrations, speciation and global stream water chemistry on the one hand, and the lithology and ages of the surrounding rocks on the other. The more U-enriched the stream sediments or rock type contexts are, which tends to be the case with rocks containing silicates (4.1 mg/kg), the less U-concentrated the stream waters are (0.15 μg/L). Sedimentary rocks lead to slightly higher Uaq concentrations (0.34 μg/L) even if the concentration in sediment (Used) is relatively low (1.6 mg/kg). This trend is reversed for Ubio, with higher concentrations in a crystalline context. The mean estimated Ubio value ranges from 1.5.10-3 to 65.3 ng/L and can fluctuate by 3 orders of magnitude depending on the considered definition as opposed to by 2 orders of magnitude accountable to differences between thermodynamic databases. The classification of the water in relation to the two surrounding rock lithologies makes it possible to reduce the mean variability for the Ubio concentrations. Irrespective of the definition of Ubio considered, in 59% of cases the Ubio fraction represents less than 1% of Uaq. Several threshold values relating to Ubio were proposed, assuming knowledge only of the aqueous concentrations of the major elements and Uaq.
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Affiliation(s)
- J E Lartigue
- CEA, DEN, DTN, Cadarache, Saint-Paul-lès-Durance Cedex, France
| | - B Charrasse
- CEA, DEN, DTN, Cadarache, Saint-Paul-lès-Durance Cedex, France
| | - B Reile
- ORANO Mining, R&D Dpt, F-92330, Châtillon, France; Cabinet Reilé, F-25290, Ornans, France
| | - M Descostes
- ORANO Mining, R&D Dpt, F-92330, Châtillon, France.
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Shen H, Kibria G, Wu RSS, Morrison P, Nugegoda D. Spatial and temporal variations of trace metal body burdens of live mussels Mytilus galloprovincialis and field validation of the Artificial Mussels in Australian inshore marine environment. CHEMOSPHERE 2020; 248:126004. [PMID: 32041062 DOI: 10.1016/j.chemosphere.2020.126004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 12/28/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
The body burdens of eight trace metals: Cd, Pb, Cu, Zn, Cr, Se, Hg, and As, were measured in live mussels (LMs) Mytilus galloprovincialis at 14 coastal sites in Port Phillip Bay, Victoria, Australia in winter and summer between 2017 and 2018. The spatial and temporal variations of body burdens were evaluated. The results revealed significantly higher body burdens of Cd, Pb, Cu, Zn, Cr, and Hg in summer at the sites where the city centre and industries are located. Elevated levels of most trace metals including 3 toxic, non-essential metals (Cd, Pb, and Hg) were detected in LMs from the site of Geelong. The body burdens of Zn, Cr, Se, and As appeared higher at the sites from the Bellarine Peninsula and the mouth of Port Phillip Bay. Besides, the "Artificial Mussels" (AMs) were deployed at the same sites in summer for 28 d and retrieved when the LMs were collected. The accumulations of the eight metals were compared between AMs and LMs summer results. It indicated significant correlations for Pb, Cu, and Cr, lower correlations in Zn and Hg, and irregular correlations for Se and As. The AM results of Cd were below the detection limit of the analytical method. This study demonstrates that AMs are excellent replacement of LMs for the biomonitoring of multiple kinds of trace metals.
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Affiliation(s)
- Hao Shen
- Ecotoxicology Research Group, School of Applied Sciences, RMIT University, Melbourne, Australia.
| | - Golam Kibria
- School of Applied Sciences, RMIT University, Australia
| | - Rudolf S S Wu
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China
| | - Paul Morrison
- School of Applied Sciences, RMIT University, Australia
| | - Dayanthi Nugegoda
- Ecotoxicology Research Group, School of Applied Sciences, RMIT University, Melbourne, Australia
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Feng W, Wang Z, Xu H, Chen L, Zheng F. Trace metal concentrations in commercial fish, crabs, and bivalves from three lagoons in the South China Sea and implications for human health. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:16393-16403. [PMID: 32124276 DOI: 10.1007/s11356-019-06712-8] [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: 06/17/2019] [Accepted: 10/02/2019] [Indexed: 06/10/2023]
Abstract
Seafood is increasingly used worldwide due to its nutritional value. It is rich in essential minerals, liposoluble vitamins, and high-quality proteins. However, many seafood species tend to accumulate metals, making them a threat to human health. We chose Xincun Lagoon and Li-an Lagoon, which have been seriously polluted by local activities, and the relatively clean Tufu Bay as the research areas to investigate whether trace metals in economic seafood species in these areas threaten the food safety of consumers. The results show that the mean concentrations (mg kg-1 ww) of trace metals were Cu 0.22 ± 0.18, Pb 0.040 ± 0.028, Zn 5.25 ± 1.60, Cd 0.009 ± 0.004, Hg 0.0072 ± 0.0031, As 0.21 ± 0.12, and Cr 0.084 ± 0.048 in fish samples (Trachinotus ovatus); Cu 4.00 ± 0.96, Pb 0.075 ± 0.030, Zn 19.10 ± 2.64, Cd 0.050 ± 0.024, Hg 0.0131 ± 0.0035, As 0.91 ± 0.27, and Cr 0.216 ± 0.095 in crab samples (Charybdis natator); and Cu 5.37 ± 1.39, Pb 0.095 ± 0.023, Zn 21.38 ± 3.59, Cd 0.096 ± 0.026, Hg 0.0208 ± 0.0052, As 1.65 ± 0.59, and Cr 0.406 ± 0.117 in bivalve samples (Ruditapes philippinarum), respectively, with species specific (fish < crab < bivalve) and significant seasonal and spatial variation (p < 0.05). However, health risk assessment (EDI, THQ, TTHQ, CR) indicated that the consumption of the analyzed seafood from the study areas is safe for local consumers. But there is a potential risk for fishermen and those who prefer seafood.
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Affiliation(s)
- Weihua Feng
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resource of the People's Republic of China, Hangzhou, 310012, China.
| | - Zhifu Wang
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resource of the People's Republic of China, Hangzhou, 310012, China
| | - Hengtao Xu
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resource of the People's Republic of China, Hangzhou, 310012, China
| | - Lihong Chen
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resource of the People's Republic of China, Hangzhou, 310012, China
| | - Fangqin Zheng
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resource of the People's Republic of China, Hangzhou, 310012, China
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The Application of Artificial Mussels in Conjunction with Transplanted Bivalves to Assess Elemental Exposure in a Platinum Mining Area. WATER 2019. [DOI: 10.3390/w12010032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
There is increasing evidence that platinum group elements (PGE) are pollutants of emerging concern worldwide. Limited information exists on levels, particularly in regions where PGEs are mined. A passive sampling device (i.e., the artificial mussel (AM)) and transplanted indicator organisms (i.e., the freshwater clam Corbicula fluminalis africana) were deployed along a PGE mining gradient in the Hex River, South Africa, and concentrations of As, Cd, Co, Cr, Ni, Pb, Pt, V, and Zn were determined after six weeks of exposure. Results showed differential uptake patterns for Pt, Cr, and Ni between the AMs and clams indicating availability differences. For monitoring purposes, a combination of AMs and indicator organisms provides a more holistic assessment of element exposure in aquatic environments.
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Suami RB, Al Salah DMM, Kabala CD, Otamonga JP, Mulaji CK, Mpiana PT, Poté JW. Assessment of metal concentrations in oysters and shrimp from Atlantic Coast of the Democratic Republic of the Congo. Heliyon 2019; 5:e03049. [PMID: 32083201 PMCID: PMC7019083 DOI: 10.1016/j.heliyon.2019.e03049] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/08/2019] [Accepted: 12/11/2019] [Indexed: 11/23/2022] Open
Abstract
Oysters and shrimp are abundant and commonly consumed seafood by the indigenous population of the Kongo central region of the Democratic Republic of the Congo (DRC). Literature reviews suggest that no data were available for the metal concentrations in these species. Consequently, the purpose of this study is to determine the metal concentrations in tissues of oysters (Egeria congica) and shrimp (Macrobrachium spp., Parapenaeus spp., Penaeus spp.) collected in November 2017 from the Atlantic Ocean Coast of DRC in the territory of Muanda. Metal levels in the seafood species studied here were put into context using international regulation for human consumption set by the Food and Agriculture Organization (FAO), Canadian Food Inspection Agency (CFIA), European Union (EU), and World Health Organization (WHO). Our results demonstrated that the concentration of heavy metals varied considerably between sampling sites and analyzed species (P < 0.05), with the values (in mg kg1) ranged between 0.05-0.41, 0.03-2.25,
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Affiliation(s)
- Robert B. Suami
- University of Kinshasa (UNIKIN), Faculty of Science, Department of Chemistry, B.P. 190, Kinshasa XI, Democratic Republic of the Congo
- University of Kinshasa (UNIKIN), Faculty of Pharmaceutical Sciences, B.P. 212, Kinshasa XI, Democratic Republic of the Congo
| | - Dhafer Mohammed M. Al Salah
- Department F.-A. Forel for Environmental and Aquatic Sciences and Institute of Environmental Sciences, School of Earth and Environmental Sciences, Faculty of Science, University of Geneva, Uni Carl Vogt, 66 Boulevard Carl-Vogt, Geneva 4, CH-1211, Switzerland
- King Abdulaziz City for Science and Technology, Joint Centers of Excellence Program, Prince Turki the 1st Street, Riyadh, 11442, Saudi Arabia
| | - César D. Kabala
- University of Kinshasa (UNIKIN), Faculty of Pharmaceutical Sciences, B.P. 212, Kinshasa XI, Democratic Republic of the Congo
| | - J.-P. Otamonga
- Université Pédagogique Nationale (UPN). Croisement Route de Matadi et Avenue de la Libération. Quartier Binza/UPN, B.P. 8815, Kinshasa, République Démocratique du Congo
| | - Crispin K. Mulaji
- University of Kinshasa (UNIKIN), Faculty of Science, Department of Chemistry, B.P. 190, Kinshasa XI, Democratic Republic of the Congo
| | - Pius T. Mpiana
- University of Kinshasa (UNIKIN), Faculty of Science, Department of Chemistry, B.P. 190, Kinshasa XI, Democratic Republic of the Congo
| | - John W. Poté
- University of Kinshasa (UNIKIN), Faculty of Science, Department of Chemistry, B.P. 190, Kinshasa XI, Democratic Republic of the Congo
- Department F.-A. Forel for Environmental and Aquatic Sciences and Institute of Environmental Sciences, School of Earth and Environmental Sciences, Faculty of Science, University of Geneva, Uni Carl Vogt, 66 Boulevard Carl-Vogt, Geneva 4, CH-1211, Switzerland
- Université Pédagogique Nationale (UPN). Croisement Route de Matadi et Avenue de la Libération. Quartier Binza/UPN, B.P. 8815, Kinshasa, République Démocratique du Congo
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Khan AS, Hakim A, Waliullah, Rahman M, Mandal BH, Abdullah-Al-Mamun, Ahammed F. Seasonal water quality monitoring of the Bhairab River at Noapara industrial area in Bangladesh. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0583-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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10
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Hossain MB, Shanta TB, Ahmed ASS, Hossain MK, Semme SA. Baseline study of heavy metal contamination in the Sangu River estuary, Chattogram, Bangladesh. MARINE POLLUTION BULLETIN 2019; 140:255-261. [PMID: 30803641 DOI: 10.1016/j.marpolbul.2019.01.058] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 01/15/2019] [Accepted: 01/28/2019] [Indexed: 05/24/2023]
Abstract
Sediment samples were collected from twelve selected sites of the Sangu River estuary and seven metals (As, Cr, Cu, Cd, Pb, Ni, Zn) were analyzed with Inductively Coupled Plasma-mass Spectrometry (ICP-MS) to assess the contamination degree of heavy metals in the Sangu River estuary and to represent it as a reference site. This study revealed the descending order of studied metals (mg/kg) observed in sediment as Zn (88.97 ± 58.97) > Ni (32.75 ± 16.09) > Cu (29.2 ± 10.78) > Cr (25.14 ± 5.20) > Pb (19.57 ± 7.01) > As (2.58 ± 2.55). Cadmium was observed below the detection level. Various indices like geo-accumulation index (Igeo), contamination factor (CF), pollution load index (PLI) suggested that the Sangu River estuary is not contaminated by studied metals excepting Pb. PCA and correlation matrix analysis indicates that Pb and Zn may have anthropogenic sources and As, Ni, Zn, Cu, Cr may come from natural sources.
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Affiliation(s)
- Mohammad Belal Hossain
- Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali, Bangladesh.
| | - Trisha Biswas Shanta
- Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - A S Shafiuddin Ahmed
- Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Md Kamal Hossain
- Soil and Environment Laboratories, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh
| | - Sanjida Afrin Semme
- Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali, Bangladesh
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11
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Ruiz-Fernández AC, Wu RSS, Lau TC, Pérez-Bernal LH, Sánchez-Cabeza JA, Chiu JMY. A comparative study on metal contamination in Estero de Urias lagoon, Gulf of California, using oysters, mussels and artificial mussels: Implications on pollution monitoring and public health risk. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:197-205. [PMID: 30172989 DOI: 10.1016/j.envpol.2018.08.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 08/14/2018] [Accepted: 08/16/2018] [Indexed: 06/08/2023]
Abstract
The profile of 11 trace metals in two commonly used biomonitors (the native oyster Crassostrea palmula and mussel Mytella strigata) from Estero de Urias lagoon, Gulf of California, were studied for six months, covering both dry and wet seasons. Metal concentrations in these two bivalves were compared with concentrations accumulated by Artificial Mussels (AMs) deployed alongside during the same period. Significant temporal variations in Cd, Cr and Mn were observed in both bivalve species and AMs. Temporal changes were observed for Fe in both bivalve species, Pb in oyster only and Cu in both AMs and oysters, revealing seasonal changes in inputs and/or chemical forms of these metals in the lagoon. Significant correlations for Cd, Cr and Cu were found in mussels and oysters, but their Co, Fe, Mn and Zn profiles were very different, despite these two species being taxonomically closely related and often used as biomonitors for metals. Interestingly, Hg and U were detected in AMs but not in oysters and mussels. The difference in metal profile in oysters, mussels and AMs revealed in the present study clearly showed that different biomonitors and AM take up metals differentially from the same environment, and metal profile in a single biomonitor or AM alone therefore, cannot provide a good estimate on metal concentrations in the ambient environment. As such, different biomonitors and AM should be used in metal monitoring, in order to provide a comprehensive picture on metal levels in aquatic ecosystems. Concentrations of Ni and Pb in oysters, and Cr, Fe and Mn in mussels were among the highest reported in coastal waters worldwide. Concentrations of Pb in oysters exceeded legal limits set for bivalve mollusks in EU. Concentrations of Cr in mussels and oysters exceeded or were very close to, respectively, the legal limit for fish, crab-meat, oysters, prawns, and shrimps in Hong Kong. The results indicate a potential public health risk on human consumption of oysters and mussels commonly harvested from the Estero de Urias lagoon, and corresponding pollution control measures are deemed necessary.
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Affiliation(s)
- Ana Carolina Ruiz-Fernández
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Calz. J. Montes Camarena s/n, Col. Playa Sur, 82040 Mazatlán, Sin., Mexico
| | - Rudolf S S Wu
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong SAR, China
| | - Tai-Chu Lau
- Department of Biology and Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Libia Hascibe Pérez-Bernal
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Calz. J. Montes Camarena s/n, Col. Playa Sur, 82040 Mazatlán, Sin., Mexico
| | - Joan Albert Sánchez-Cabeza
- Unidad Académica Procesos Oceánicos y Costeros, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 Mexico City, Mexico
| | - Jill M Y Chiu
- Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China.
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12
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Dahms-Verster S, Baker NJ, Greenfield R. A multivariate examination of 'artificial mussels' in conjunction with spot water tests in freshwater ecosystems. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:427. [PMID: 29946983 DOI: 10.1007/s10661-018-6764-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 05/31/2018] [Indexed: 06/08/2023]
Abstract
Metal pollution in aquatic systems is considered a serious environmental issue globally due to their ability to accumulate in aquatic environments. Wetlands are vulnerable to this pollution as they are known to trap toxins, removing them from the water. Artificial mussel technology, originally developed for marine environments, was applied to this freshwater system and spot water samples were collected. The Nyl River floodplain (Ramsar classified) is one of the largest and most ecologically significant wetlands in South Africa. The aims of this study were to determine metal contamination along the Nyl River system by means of artificial mussels (AM) and water ICP-MS analysis and to determine whether the use of AMs in conjunction with spot water testing could give more insight into the pollution in freshwater wetlands. The concentrations of Al, Cd, Cr, Co, Cu, Fe, Mn, Ni, Pb and Zn were determined at seven sites. It was determined that the levels accumulated by the AMs differed in spatial and temporal trends when compared to spot water samples. It was determined that there were high levels of some metals found in the spot water tests that were not corroborated by the AMs results, which could indicate isolated pollution events. The use of AMs in conjunction with spot water testing was determined to be beneficial in gaining deeper insight into water metal conditions in dynamic freshwater systems.
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Affiliation(s)
- S Dahms-Verster
- Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, 2006, South Africa.
| | - N J Baker
- Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, 2006, South Africa
| | - R Greenfield
- Department of Zoology, University of Johannesburg, PO Box 524, Auckland Park, 2006, South Africa
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13
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Chiu JMY, Po BHK, Degger N, Tse A, Liu W, Zheng G, Zhao DM, Xu D, Richardson B, Wu RSS. Contamination and risk implications of endocrine disrupting chemicals along the coastline of China: A systematic study using mussels and semipermeable membrane devices. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 624:1298-1307. [PMID: 29929242 DOI: 10.1016/j.scitotenv.2017.12.214] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 12/18/2017] [Accepted: 12/19/2017] [Indexed: 06/08/2023]
Abstract
A systematic study has been carried out to assess the contamination of endocrine disrupting chemicals (EDCs) in five highly urbanized coastal cities spanning from temperate to subtropical environments along the coastline of China. In each of these cities, species of native mussels (Mytilus galloprovincialis, M. coruscus or Perna viridis) were deployed alongside with semipermeable membrane devices (SPMDs) for one month at a reference site and a polluted site. The level of 4-nonylphenol (4-NP), bisphenol A (BPA), 17β-estradiol (E2) and 17α-ethynylestradiol (EE2) in SPMDs and transplanted mussels were determined and compared. The concentration of EDCs in mussels from polluted sites of Qingdao and Shenzhen ranged from 99.4±9.40 to 326.1±3.16ng/g dry wt. for 4-NP, Dalian and Shanghai from 170.3±4.00 to 437.2±36.8ng/g dry wt. for BPA, Dalian and Shenzhen from 82.9±3.03 to 315.6±6.50ng/g dry wt. for E2, and Shenzhen and Shanghai from 124.5±3.25 to 204.5±9.26ng/g dry wt. for EE2, respectively. These results demonstrate that concentrations of EDCs in mussels along the coastline of China are substantially higher than levels reported in mussels and seafood elsewhere. Despite high levels of EDCs and per capita seafood consumption in China, analysis indicated that 4-NP and BPA intake from mussels at polluted sites per se are still below the Tolerable Daily Intake (TDI). In contrast, the daily intake of E2 and EE2 (6.5 and 5.5μg/person/day, respectively) from mussel consumption exceeded the Acceptable Daily Intake (ADI) established by the WHO, USA and Australia by large margins, suggesting significant public health risks. A strong correlation was found between EDC concentrations in SPMDs and transplanted mussels, and the advantages of using mussels and SPMDs for monitoring EDCs in the aquatic environment are discussed.
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Affiliation(s)
- Jill M Y Chiu
- Department of Biology, Hong Kong Baptist University, Hong Kong, China.
| | - Beverly H K Po
- Department of Biology, Hong Kong Baptist University, Hong Kong, China
| | - Natalie Degger
- School of Biological Sciences, The University of Hong Kong, Hong Kong, China
| | - Anna Tse
- School of Biological Sciences, The University of Hong Kong, Hong Kong, China
| | - Wenhua Liu
- Marine Biology Institute, Shantou University, Shantou, China
| | - Gene Zheng
- Department of Biology, Hong Kong Baptist University, Hong Kong, China
| | - Dong-Mei Zhao
- National Marine Environmental Monitoring Center, State Oceanic Administration, Liaoning, China
| | - Di Xu
- College of Marine Life Science, Ocean University of China, Qingdao, China
| | - Bruce Richardson
- Department of Biology and Chemistry, City University of Hong Kong, Hong Kong, China
| | - Rudolf S S Wu
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China.
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14
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Musa R, Gerber R, Greenfield R. A Multivariate Analysis of Metal Concentrations in Two Fish Species of the Nyl River System, Limpopo Province, South Africa. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 98:817-823. [PMID: 28484803 DOI: 10.1007/s00128-017-2100-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: 07/28/2016] [Accepted: 04/27/2017] [Indexed: 06/07/2023]
Abstract
Increased toxicity due to high metal concentrations may hinder the ecological integrity of aquatic ecosystems in sustaining life. The non-biodegradable nature of metals may result in bioaccumulation in aquatic organisms. Due to ecological and social aspects it is imperative for monitoring schemes to identify possible impacts to the systems integrity. This paper discusses accumulation patterns of seven metals (Al, Cr, Cu, Fe, Mn, Sr and Zn) in tissues of two fish species, namely Clarias gariepinus and Oreochromis mossambicus at two selected sites, the first located upstream of Modimolle (NRS1), and the second located downstream of the town (NRS2). Gills, liver, muscle and skin tissues were analysed for metal concentrations using standard microwave digestion and inductively coupled plasma mass spectrometry techniques. Statistical results indicated higher concentrations of metals at NRS2 in comparison to NRS1, indicating that Modimolle plays a potential role in introducing metals into the aquatic system.
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Affiliation(s)
- R Musa
- Department of Zoology, University of Johannesburg (Auckland Park Kingsway Campus), PO Box 524, Auckland Park, 2006, South Africa
| | - R Gerber
- Department of Zoology, University of Johannesburg (Auckland Park Kingsway Campus), PO Box 524, Auckland Park, 2006, South Africa
| | - R Greenfield
- Department of Zoology, University of Johannesburg (Auckland Park Kingsway Campus), PO Box 524, Auckland Park, 2006, South Africa.
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15
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Kibria G, Hossain MM, Mallick D, Lau TC, Wu R. Monitoring of metal pollution in waterways across Bangladesh and ecological and public health implications of pollution. CHEMOSPHERE 2016; 165:1-9. [PMID: 27614397 DOI: 10.1016/j.chemosphere.2016.08.121] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 08/07/2016] [Accepted: 08/25/2016] [Indexed: 05/24/2023]
Abstract
Using innovative artificial mussels technology for the first time, this study detected eight heavy metals (Cd, Cu, Fe, Mn, Ni, Pb, U, Zn) on a regular basis in waterways across Bangladesh (Chittagong, Dhaka and Khulna). Three heavy metals, viz. Co, Cr and Hg were always below the instrumental detection levels in all the sites during the study period. Through this study, seven metal pollution "hot spots" have been identified, of which, five "hot spots" (Cu, Fe, Mn, Ni, Pb) were located in the Buriganga River, close to the capital Dhaka. Based on this study, the Buriganga River can be classified as the most polluted waterway in Bangladesh compared to waterways monitored in Khulna and Chittagong. Direct effluents discharged from tanneries, textiles are, most likely, reasons for elevated concentrations of heavy metals in the Buriganga River. In other areas (Khulna), agriculture and fish farming effluents may have caused higher Cu, U and Zn in the Bhairab and Rupsa Rivers, whereas untreated industrial discharge and ship breaking activities can be linked to elevated Cd in the coastal sites (Chittagong). Metal pollution may cause significant impacts on water quality (irrigation, drinking), aquatic biodiversity (lethal and sub-lethal effects), food contamination/food security (bioaccumulation of metals in crops and seafood), human health (diseases) and livelihoods of people associated with wetlands.
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Affiliation(s)
- Golam Kibria
- School of Applied Sciences, RMIT University, Melbourne, Australia.
| | - Md Maruf Hossain
- Institute of Marine Sciences & Fisheries, University of Chittagong, Bangladesh
| | - Debbrota Mallick
- Institute of Marine Sciences & Fisheries, University of Chittagong, Bangladesh
| | - T C Lau
- Department of Biology & Chemistry, City University of Hong Kong, Hong Kong
| | - Rudolf Wu
- Department of Science and Environmental Studies, Hong Kong Institute of Education, Tai Po, Hong Kong
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16
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Chiu JMY, Degger N, Leung JYS, Po BHK, Zheng GJ, Richardson BJ, Lau TC, Wu RSS. A novel approach for estimating the removal efficiencies of endocrine disrupting chemicals and heavy metals in wastewater treatment processes. MARINE POLLUTION BULLETIN 2016; 112:53-57. [PMID: 27568324 DOI: 10.1016/j.marpolbul.2016.08.043] [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: 04/30/2016] [Revised: 08/10/2016] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
The wide occurrence of endocrine disrupting chemicals (EDCs) and heavy metals in coastal waters has drawn global concern, and thus their removal efficiencies in sewage treatment processes should be estimated. However, low concentrations coupled with high temporal fluctuations of these pollutants present a monitoring challenge. Using semi-permeable membrane devices (SPMDs) and Artificial Mussels (AMs), this study investigates a novel approach to evaluating the removal efficiency of five EDCs and six heavy metals in primary treatment, secondary treatment and chemically enhanced primary treatment (CEPT) processes. In general, the small difference between maximum and minimum values of individual EDCs and heavy metals measured from influents/effluents of the same sewage treatment plant suggests that passive sampling devices can smooth and integrate temporal fluctuations, and therefore have the potential to serve as cost-effective monitoring devices for the estimation of the removal efficiencies of EDCs and heavy metals in sewage treatment works.
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Affiliation(s)
- Jill M Y Chiu
- Department of Biology, Hong Kong Baptist University, Hong Kong.
| | - Natalie Degger
- Centre for Marine Environmental Research and Innovative Technology and School of Biological Sciences, The University of Hong Kong, Hong Kong
| | | | - Beverly H K Po
- Department of Biology, Hong Kong Baptist University, Hong Kong; Centre for Marine Environmental Research and Innovative Technology and School of Biological Sciences, The University of Hong Kong, Hong Kong
| | - Gene J Zheng
- Department of Biology, Hong Kong Baptist University, Hong Kong
| | - Bruce J Richardson
- Department of Biology and Chemistry, City University of Hong Kong, Hong Kong
| | - T C Lau
- Department of Biology and Chemistry, City University of Hong Kong, Hong Kong
| | - Rudolf S S Wu
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong; Centre for Marine Environmental Research and Innovative Technology and School of Biological Sciences, The University of Hong Kong, Hong Kong.
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17
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Degger N, Chiu JMY, Po BHK, Tse ACK, Zheng GJ, Zhao DM, Xu D, Cheng YS, Wang XH, Liu WH, Lau TC, Wu RSS. Heavy metal contamination along the China coastline: A comprehensive study using Artificial Mussels and native mussels. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2016; 180:238-246. [PMID: 27233049 DOI: 10.1016/j.jenvman.2016.05.008] [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: 01/28/2016] [Revised: 04/29/2016] [Accepted: 05/04/2016] [Indexed: 06/05/2023]
Abstract
A comprehensive study was carried out to assess metal contamination in five cities spanning from temperate to tropical environment along the coastal line of China with different hydrographical conditions. At each of the five cities, Artificial Mussels (AM) were deployed together with a native species of mussel at a control site and a polluted site. High levels of Cr, Cu and Hg were found in Qingdao, high level of Cd, Hg and Pb was found in Shanghai, and high level of Zn was found in Dalian. Furthermore, level of Cu contamination in all the five cities was consistently much higher than those reported in similar studies in other countries (e.g., Australia, Portugal, Scotland, Iceland, Korea, South Africa and Bangladesh). Levels of individual metal species in the AM showed a highly significant correlation with that in the native mussels (except for Zn in Mytilus edulis and Cd in Perna viridis), while no significant difference can be found between the regression relationships of metal in the AM and each of the two native mussel species. The results demonstrated that AM can provide a reliable time-integrated estimate of metal concentration in contrasting environments over large biogeographic areas and different hydrographic conditions, and overcome the shortcomings of monitoring metals in water, sediment and the use of biomonitors.
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Affiliation(s)
- Natalie Degger
- School of Biological Sciences, The University of Hong Kong, Hong Kong, China
| | - Jill M Y Chiu
- Department of Biology, Hong Kong Baptist University, Hong Kong, China; State Key Laboratory in Marine Pollution, Hong Kong, China.
| | - Beverly H K Po
- Department of Biology, Hong Kong Baptist University, Hong Kong, China; School of Biological Sciences, The University of Hong Kong, Hong Kong, China
| | - Anna C K Tse
- School of Biological Sciences, The University of Hong Kong, Hong Kong, China
| | - Gene J Zheng
- Department of Biology, Hong Kong Baptist University, Hong Kong, China
| | - Dong-Mei Zhao
- National Marine Environmental Monitoring Center, State Oceanic Administration, Liaoning, China
| | - Di Xu
- College of Marine Life Science, Ocean University of China, Qingdao, China
| | - Yu-Shan Cheng
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, China
| | - Xin-Hong Wang
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
| | - Wen-Hua Liu
- Marine Biology Institute, Shantou University, Shantou, China
| | - T C Lau
- Department of Biology and Chemistry, City University of Hong Kong, Hong Kong, China; State Key Laboratory in Marine Pollution, Hong Kong, China
| | - Rudolf S S Wu
- Department of Science and Environmental Studies, Hong Kong Education University, Hong Kong, China; State Key Laboratory in Marine Pollution, Hong Kong, China.
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18
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Kibria G, Hossain MM, Mallick D, Lau TC, Wu R. Trace/heavy metal pollution monitoring in estuary and coastal area of Bay of Bengal, Bangladesh and implicated impacts. MARINE POLLUTION BULLETIN 2016; 105:393-402. [PMID: 26917093 DOI: 10.1016/j.marpolbul.2016.02.021] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 02/03/2016] [Accepted: 02/04/2016] [Indexed: 06/05/2023]
Abstract
Using artificial mussels (AMs), this study reports and compares time-integrated level of eleven trace metals (Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, U, Zn) in Karnafuli River estuary and coastal area of the Bay of Bengal, Bangladesh. Through this study, "hot spots" of metal pollution were identified. The results may demonstrate that the Karnafuli Estuary, and adjacent coastal area of Chittagong, Bangladesh are highly polluted by high risk metals (cadmium, chromium, copper, mercury, nickel, lead, uranium). Agricultural, domestic and industrial wastes directly discharged into the waterways have been identified as the main causes of metal pollution in Chittagong, Bangladesh. The high level of metal pollution identified may impact on local water quality, and seafood catch, livelihoods of people and public health resulting from seafood consumption. There is a need for regular monitoring to ascertain that local water quality with respect to metal levels are within acceptable levels to safeguards both environmental health and public health.
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Affiliation(s)
- Golam Kibria
- School of Applied Sciences, RMIT University, Melbourne, Australia.
| | - Md Maruf Hossain
- Institute of Marine Sciences & Fisheries, University of Chittagong, Bangladesh
| | - Debbrota Mallick
- Institute of Marine Sciences & Fisheries, University of Chittagong, Bangladesh
| | - T C Lau
- Department of Biology & Chemistry, City University of Hong Kong, Hong Kong
| | - Rudolf Wu
- Department of Science and Environmental Studies, Hong Kong Institute of Education, Tai Po, Hong Kong
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19
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Greenfield R, Brink K, Degger N, Wepener V. The usefulness of transplantation studies in monitoring of metals in the marine environment: South African experience. MARINE POLLUTION BULLETIN 2014; 85:566-573. [PMID: 24725824 DOI: 10.1016/j.marpolbul.2014.03.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 03/17/2014] [Accepted: 03/17/2014] [Indexed: 06/03/2023]
Abstract
Due to their close proximity to the point sources of pollution, estuaries and harbours are exposed to metals. Mussels are used worldwide to monitor marine pollution due to their ability to take up contaminants and the ease of transplantation. Mussels were collected from two reference sites and transplanted in Richards Bay Harbour (2006 and 2010) and in three harbours. Transplanted and resident mussels were removed after 6 weeks exposure and metal concentrations were analysed using ICP-MS techniques. Transplanted mussels had higher metal concentrations than the resident mussels. This was attributed to regulation of metals by the resident mussels. Metal regulation was greater in mussels that are continuously submerged as opposed to those that undergo tidal influences. For monitoring it is essential that the reference population for transplantation is considered carefully as upwelling events in the pristine reference location results in significant increases in metal bioaccumulation.
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Affiliation(s)
- R Greenfield
- Centre for Aquatic Research, Department of Zoology, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa
| | - K Brink
- Centre for Aquatic Research, Department of Zoology, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa
| | - N Degger
- Centre for Aquatic Research, Department of Zoology, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa; School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - V Wepener
- Water Research Group (Ecotoxicology), School of Biological Sciences, Unit for Environmental Science and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa.
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20
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Greenberg MS, Chapman PM, Allan IJ, Anderson KA, Apitz SE, Beegan C, Bridges TS, Brown SS, Cargill JG, McCulloch MC, Menzie CA, Shine JP, Parkerton TF. Passive sampling methods for contaminated sediments: risk assessment and management. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2014; 10:224-36. [PMID: 24343931 PMCID: PMC4070852 DOI: 10.1002/ieam.1511] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 07/17/2013] [Accepted: 12/03/2013] [Indexed: 05/13/2023]
Abstract
This paper details how activity-based passive sampling methods (PSMs), which provide information on bioavailability in terms of freely dissolved contaminant concentrations (Cfree ), can be used to better inform risk management decision making at multiple points in the process of assessing and managing contaminated sediment sites. PSMs can increase certainty in site investigation and management, because Cfree is a better predictor of bioavailability than total bulk sediment concentration (Ctotal ) for 4 key endpoints included in conceptual site models (benthic organism toxicity, bioaccumulation, sediment flux, and water column exposures). The use of passive sampling devices (PSDs) presents challenges with respect to representative sampling for estimating average concentrations and other metrics relevant for exposure and risk assessment. These challenges can be addressed by designing studies that account for sources of variation associated with PSMs and considering appropriate spatial scales to meet study objectives. Possible applications of PSMs include: quantifying spatial and temporal trends in bioavailable contaminants, identifying and evaluating contaminant source contributions, calibrating site-specific models, and, improving weight-of-evidence based decision frameworks. PSM data can be used to assist in delineating sediment management zones based on likelihood of exposure effects, monitor remedy effectiveness, and, evaluate risk reduction after sediment treatment, disposal, or beneficial reuse after management actions. Examples are provided illustrating why PSMs and freely dissolved contaminant concentrations (Cfree ) should be incorporated into contaminated sediment investigations and study designs to better focus on and understand contaminant bioavailability, more accurately estimate exposure to sediment-associated contaminants, and better inform risk management decisions. Research and communication needs for encouraging broader use are discussed.
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Affiliation(s)
- Marc S Greenberg
- USEPA Office of Superfund Remediation & Technology InnovationEdison, New Jersey
| | | | - Ian J Allan
- Norwegian Institute for Water ResearchOslo, Norway
| | | | - Sabine E Apitz
- SEA Environmental Decisions LtdHertfordshire, United Kingdom
| | - Chris Beegan
- California State Water Resources BoardSacramento, California, USA
| | - Todd S Bridges
- US Army Corps of Engineers, Engineer Research & Development CenterVicksburg, Mississippi
| | - Steve S Brown
- The Dow Chemical Company, Spring HousePennsylvania, USA
| | - John G Cargill
- Delaware Department of Natural Resources and Environmental ControlNew Castle, Delaware, USA
| | - Megan C McCulloch
- Sediment Management Work GroupDetroit, Michigan, USA
- Present address:The Dow Chemical CompanyMidland, Michigan, USA
| | | | - James P Shine
- Harvard University School of Public HealthBoston, Massachusetts, USA
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21
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Ren J, Luo J, Ma H, Wang X, Ma LQ. Bioavailability and oxidative stress of cadmium to Corbicula fluminea. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2013; 15:860-869. [PMID: 23483045 DOI: 10.1039/c3em30288a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This work set out to study the effects of cadmium (Cd) in sediments on the antioxidant enzyme activities in the digestive gland of Asian clam Corbicula fluminea and to explore the potential for applying these responses to evaluate the Cd-contaminated sediment. Additionally, diffusive gradients in thin-films (DGT) technique was used to predict the response of its antioxidant defense system. The sediments, collected from Taihu Lake, were spiked with Cd at different concentrations (0.72, 0.91, 1.62, 2.59, 11.2, 20.4 and 40.6 mg kg(-1), dry weight). Asian clam was cultivated for 28 days. Concentrations of Cd in the body of Asian clam had a good relationship with concentrations of Cd in overlying water and sediments, as measured by DGT. Cd affected these biochemical parameters significantly, especially for superoxide (SOD), peroxidase (POD) and glutathione (GSH), which began to show higher sensitivity and have a significant difference in low dosage (0.91 mg Cd kg(-1)) compared with blank. Contents of MDA and MT, which were induced by Cd, increased with the increasing Cd concentration in sediments and reached peak values at 11.2 and 20.4 mg kg(-1), respectively, after 28 days exposure. All of these results suggested that biochemical responses cooperated in detoxifying and maintaining cellular metabolic homeostasis. The R(2) of regression analysis between the contents of MT and the concentrations of Cd measured by DGT, in sediments and soft body were 0.71, 0.94 and 0.88 after 28 days exposure. This suggested that DGT measurement could predict the response of MT. Cd accumulation, GSH and MT were indispensable biomarkers and the MDA content and DGT appeared to be promising biomarkers. The results clearly indicated that Cd could induce oxidative stress in the digestive gland of Asian clam. The combination of biomonitors with DGT can obtain different information about Cd bioavailability and confirm the significance of applying a suite of biomarkers rather than a selective index to assess the sublethal effect. It also offered theoretical methods for the prediction of sediment Cd pollution.
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Affiliation(s)
- Jinghua Ren
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing 210046, PR China
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22
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Kibria G, Lau TC, Wu R. Innovative 'Artificial Mussels' technology for assessing spatial and temporal distribution of metals in Goulburn-Murray catchments waterways, Victoria, Australia: effects of climate variability (dry vs. wet years). ENVIRONMENT INTERNATIONAL 2012; 50:38-46. [PMID: 23070068 DOI: 10.1016/j.envint.2012.09.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 08/18/2012] [Accepted: 09/16/2012] [Indexed: 06/01/2023]
Abstract
The "Artificial mussel" (AM), a novel passive sampling technology, was used for the first time in Australia in freshwater to monitor and assess the risk of trace metals (Cd, Cu, Hg, Pb, and Zn). AMs were deployed at 10 sites within the Goulburn-Murray Water catchments, Victoria, Australia during a dry year (2009-2010) and a wet year (2010-2011). Our results showed that the AMs accumulated all the five metals. Cd, Pb, Hg were detected during the wet year but below detection limits during the dry year. At some sites close to orchards, vine yards and farming areas, elevated levels of Cu were clearly evident during the dry year, while elevated levels of Zn were found during the wet year; the Cu indicates localized inputs from the agricultural application of copper fungicide. The impacts from old mines were significantly less compared 'hot spots'. Our study demonstrated that climate variability (dry, wet years) can influence the metal inputs to waterways via different transport pathways. Using the AMs, we were able to identify various 'hot spots' of heavy metals, which may pose a potential risk to aquatic ecosystems (sub-lethal effects to fish) and public (via food chain metal bioaccumulation and biomagnification) in the Goulburn-Murray Water catchments. The State Protection Policy exempted artificial channels and drains from protection of beneficial use (including protection of aquatic ecosystems) and majority of sites ('hot spots') were located within artificial irrigation channels.
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Affiliation(s)
- Golam Kibria
- Goulburn Murray Rural Water Corporation, Tatura, VIC, Australia.
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23
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Guitart C, Hernández-del-Valle A, Marín JM, Benedicto J. Tracking temporal trend breaks of anthropogenic change in Mussel Watch (MW) databases. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:11515-11523. [PMID: 23035902 DOI: 10.1021/es3021183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The potential for structural changes in time trend concentrations of mercury (Hg), lead (Pb), cadmium (Cd), zinc (Zn), and copper (Cu) in the Mediterranean mussel, Mytilus galloprovincialis, was examined in Mussel Watch (MW) databases of metal pollution at eighteen coastal stations over a decadal period, from 1992 to 2007. Simultaneously, by using two statistical methods representing both the classical hypothesis-testing and the Bayesian approaches, we found single and multiple trend breaks for Hg (28% of the stations), Cd (17%), and Pb (11%) within trends in connection with anthropogenic and subtle natural environmental changes. Also called change point problems, if not accounted for, these could bias time trend investigations and interpretations. We calculated trend rate differences of 39% and switches up to 1 order of magnitude from classical linear trend assessments. We discuss sampling, analytical, and environmental (both natural and anthropogenic) sources of data set variabilities, showing that, in practice, the overall 16-year analytical performance could be as elevated as the yearly sampling reproducibility. We demonstrate that environmental time trend interpretations benefit from undertaking prior structural change analysis. After decades of MW marine chemical pollution assessments these have proven extremely useful, although the occurrence of trend breaks directly affects the long-term marine environmental monitoring strategies. Our results suggest a broader concept to design monitoring programs in agreement with rapid global anthropogenic and environmental changes.
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Affiliation(s)
- Carlos Guitart
- Spanish Institute of Oceanography, Murcia Oceanographic Center, 30740 Murcia, Spain.
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Rahimi E, Zaker S, Farfani MHD, Araghi MR, Vafaei M, Goudarzi MA. Cadmium concentrations in shrimp (Penaeus semisulcatus and Penaeus monodon) caught from the coastal areas in Southern Iran. Toxicol Ind Health 2012; 29:272-5. [PMID: 22301817 DOI: 10.1177/0748233711432572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study was undertaken to determine the concentration of cadmium in two shrimp species, namely, Penaeus semisulcatus and Penaeus monodon caught from the coastal areas in southern Iran. Cadmium concentration was determined by graphite furnace atomic absorption spectrophotometry in 91 shrimp samples after nitric acid/perchloric acid digestion. Accuracy of the analysis was checked by various methods including the use of reference material. The mean ± SD of cadmium concentrations in shrimp samples were 0.128 ± 0.144 (μg/g). The cadmium concentrations ranged from 0.010 to 0.96 μg/g of the muscle tissues of shrimp. Higher cadmium concentration in shrimp samples was found in summer (significant p < 0.05). The results show that the mean concentration of cadmium in shrimp is lower than the maximum allowed levels according to International standards, although the concentration of cadmium in only one sample was more than the amount recommended by Food and Agriculture Organization. Therefore, no risk to the consumer arises from the cadmium contents of the shrimp caught in these areas.
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Affiliation(s)
- E Rahimi
- Young Researchers Club, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
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Baraj B, Niencheski F, Fillmann G, De Martinez Gaspar Martins C. Assessing the effects of Cu, Cd, and exposure period on metallothionein production in gills of the Brazilian brown mussel Perna perna by using factorial design. ENVIRONMENTAL MONITORING AND ASSESSMENT 2011; 179:155-162. [PMID: 20976552 DOI: 10.1007/s10661-010-1725-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Accepted: 09/20/2010] [Indexed: 05/30/2023]
Abstract
Factorial design plan was experimented in Perna perna in order to find out the contribution of day exposure, Cd and Cu concentrations in water, and their interactions on metallothioneins (MT), Cd, and Cu (the dependent measured variables) in the gills. The picture obtained is more adequate than by studying the factor effect separately. Compared with the control group, the MT concentration after 22 days exposure period in the mixture of 100 μg/mL Cu and Cd is increased almost two times, showing that P. perna might be used as a biomonitor. Cd showed stronger effect than Cu on MT inducing.
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Affiliation(s)
- Besnik Baraj
- Instituto de Oceanografia, Universidade Federal do Rio Grande, Campus Carreiros, Av. Itália, km 8, 96201-900, Rio Grande, RS, Brazil
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Degger N, Wepener V, Richardson BJ, Wu RSS. Application of artificial mussels (AMs) under South African marine conditions: a validation study. MARINE POLLUTION BULLETIN 2011; 63:108-118. [PMID: 21596395 DOI: 10.1016/j.marpolbul.2011.04.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 03/31/2011] [Accepted: 04/12/2011] [Indexed: 05/30/2023]
Abstract
Over the last three decades there has been a significant decline in the number of marine pollution monitoring-related studies in South Africa. Thus, the current study was conducted to assess the current state of metal contamination within the South African marine environment through the validation of the artificial mussel (AM). Indigenous reference mussels (Perna perna) were deployed alongside the passive device within the South African marine environment for a 6 week exposure period. Analysis of metal uptake (Cd, Cr, Cu, Pb and Zn) was determined by filtration and elution of the AM chelex resins, microwave digestion of the transplanted mussels, and determination of their metal concentrations by ICP-MS and ICP-OES analysis. Uptake patterns between the AM and transplanted mussels showed significant temporal and spatial correlation for the majority of the elements analysed. While the AM provided relevant and complementary information on the dissolved metal concentrations, limitations were also observed.
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Affiliation(s)
- N Degger
- Department of Zoology, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa
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Gonzalez-Rey M, Lau TC, Gomes T, Maria VL, Bebianno MJ, Wu R. Comparison of metal accumulation between 'Artificial Mussel' and natural mussels (Mytilus galloprovincialis) in marine environments. MARINE POLLUTION BULLETIN 2011; 63:149-153. [PMID: 21237472 DOI: 10.1016/j.marpolbul.2010.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 11/26/2010] [Accepted: 12/05/2010] [Indexed: 05/30/2023]
Abstract
The passive sampler called 'Artificial Mussel' (AM) developed by Wu et al. (2007) can provide a time-integrated estimate of metal concentrations in the marine environment, and offers a potential device to assess and compare metal concentration in different marine environments worldwide. The aim of this study was to compare metal accumulation on AM and natural mussel Mytilus galloprovincialis at three sites with different metal loads along the Portuguese coast for four months. M. galloprovincialis were placed in cages alongside AMs at each site. Samples were collected monthly and Cd, Cr, Cu, Pb, and Zn concentrations in whole soft tissues and AMs compared. For both Cu and Cd, the results were similar between AMs and natural mussels. Higher concentrations of Zn were observed in natural mussels, whereas the inverse was shown for Pb (about 10-fold higher). Our results showed that AMs are promising tools for assessing metal concentrations in marine environments.
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Affiliation(s)
- M Gonzalez-Rey
- CIMA, Centre of Marine and Environmental Research, Campus de Gambelas, Faculty of Science and Technology, University of Algarve, Faro, Portugal
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Benedicto J, Andral B, Martínez-Gómez C, Guitart C, Deudero S, Cento A, Scarpato A, Caixach J, Benbrahim S, Chouba L, Boulahdid M, Galgani F. A large scale survey of trace metal levels in coastal waters of the Western Mediterranean basin using caged mussels (Mytilus galloprovincialis). ACTA ACUST UNITED AC 2011; 13:1495-505. [DOI: 10.1039/c0em00725k] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wilkie EM, Roach AC, Micevska T, Kelaher BP, Bishop MJ. Effects of a chelating resin on metal bioavailability and toxicity to estuarine invertebrates: divergent results of field and laboratory tests. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2010; 158:1261-1269. [PMID: 20193975 DOI: 10.1016/j.envpol.2010.01.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2009] [Revised: 01/27/2010] [Accepted: 01/28/2010] [Indexed: 05/28/2023]
Abstract
Benthic invertebrates can uptake metals through diffusion of free ion solutes, or ingestion of sediment-bound forms. This study investigated the efficacy of the metal chelating resin SIR 300 in adsorbing porewater metals and isolating pathways of metal exposure. A field experiment (Botany Bay, Sydney, Australia) and a laboratory toxicity test each manipulated the availability of porewater metals within contaminated and uncontaminated sediments. It was predicted that within contaminated sediments, the resin would adsorb porewater metals and reduce toxicity to invertebrates, but in uncontaminated sediments, the resin would not significantly affect these variables. Whereas in the laboratory, the resin produced the predicted results, in the field the resin increased porewater metal concentrations of contaminated sediments for at least 34 days and decreased abundances of four macroinvertebrate groups, and richness in all sediments. These contrasting findings highlight the limits of extrapolating the results of laboratory experiments to the field environment.
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Affiliation(s)
- Emma M Wilkie
- Department of Environmental Sciences, University of Technology Sydney, Broadway, NSW 2007, Australia.
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Firat O, Gök G, Coğun HY, Yüzereroğlu TA, Kargin F. Concentrations of Cr, Cd, Cu, Zn and Fe in crab Charybdis longicollis and shrimp Penaeus semisulcatus from the Iskenderun Bay, Turkey. ENVIRONMENTAL MONITORING AND ASSESSMENT 2008; 147:117-23. [PMID: 18095182 DOI: 10.1007/s10661-007-0103-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2007] [Accepted: 11/19/2007] [Indexed: 05/11/2023]
Abstract
Copper, chromium cadmium, iron and zinc concentrations were determined in marine crab Charybdis longicollis and marine shrimp Penaeus semisulcatus in order to assess the impact of industrial activities and the sinking of M/V Ulla ship. Liver, gill and muscle sample solutions prepared analyzed using the atomic absorption spectrophotometry technique. The order of the metal concentrations found in muscle of crab was: Cu>Cr>Fe>Zn>Cd, while in muscle of shrimp the order was different: Cr>Cu>Zn>Fe>Cd. The highest Cu, Cr, Cd, Fe and Zn concentrations were found in the liver, and this was followed by the gill and muscle in both species. The levels of all metals in a given tissue were always higher in C. longicollis than in P. semisulcatus. Metals in both species show seasonal variations. In both species the highest concentrations were detected for all metals in summer.
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Affiliation(s)
- O Firat
- Biology Department, University of Cukurova, 01330, Adana, Turkey
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Sodium Gill Potential as a Tool to Monitor Valve Closure Behavior in Freshwater Clam Corbicula fluminea in Response to Copper. SENSORS 2008; 8:5250-5269. [PMID: 27873813 PMCID: PMC3705503 DOI: 10.3390/s8095250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2008] [Revised: 08/14/2008] [Accepted: 08/28/2008] [Indexed: 11/17/2022]
Abstract
Valve closure behavior in freshwater clam Corbicula fluminea is a biologically sensitive endpoint. The purpose of this paper was to derive an electrophysiological response model of C. fluminea to assess copper (Cu)–sodium (Na) interactions in gill membrane, whereby valve closure behavior and Cu toxicity could be monitored. The proposed model was based on the integration of Cu bioavailability, Na and Cu internalizations, and electrochemically-based gill potentials. Based on Na active transport under non-equilibrium conditions, predicted gill potential of −8.2 mV agreed reasonably well with published the measured transepithelial potential of −7 mV in C. fluminea. Our proposed framework captured the general features observed in model applications including: (i) 50% inhibitory Cu2+ activities for Na membrane potential (ENa) and uptake rate (JNa) were estimated to be 0.072 and 0.043 μM, respectively, with a stoichiometry of 3Cu2+: 1ENa and 1JNa; (ii) the external Cu2+–dependent internal Na concentration could be parsimoniously estimated, and (iii) the site-specific clam gill potentials could be monitored. Here we provided a new approach to monitor waterborne metal toxicity to reduce the nationwide economic losses due to bans on harvesting of contaminated clam and the potential risks to the health of clams.
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Schintu M, Durante L, Maccioni A, Meloni P, Degetto S, Contu A. Measurement of environmental trace-metal levels in Mediterranean coastal areas with transplanted mussels and DGT techniques. MARINE POLLUTION BULLETIN 2008; 57:832-837. [PMID: 18396298 DOI: 10.1016/j.marpolbul.2008.02.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Revised: 02/01/2008] [Accepted: 02/21/2008] [Indexed: 05/26/2023]
Abstract
Mussels (Mytilus galloprovincialis) and diffusive gradients in thin films (DGT) devices were deployed together for three one-month periods in coastal waters of Sardinia (Italy), in order to assess the levels of Cd, Cu, Ni, and Pb in areas differently affected by anthropogenic activities. DGT devices were more sensitive than mussels in detecting differences in metal concentrations between sites, while interpretation of the biomonitoring data revealed difficulties related to the biotic and abiotic factors that can influence the measurements. Regression analysis showed a significant correlation between Cd and Pb concentrations measured in the mussel tissues and bioavailable metal levels in seawater. Moreover transplanted mussels did not accumulate Cu and Ni following pre-exposure, although DGT showed significant concentrations of bioavailable forms of these metals in seawater. The results provided an estimate of the water quality with respect to dissolved metals and pointed out the usefulness of a combination of biomonitoring and DGT techniques for a better understanding of trace metal availability in coastal waters.
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Affiliation(s)
- M Schintu
- Università di Cagliari, Dipartimento di Sanità Pubblica, Via GT Porcell 4, 09124 Cagliari, Italy.
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Leung KMY, Furness RW, Svavarsson J, Lau TC, Wu RSS. Field validation, in Scotland and Iceland, of the artificial mussel for monitoring trace metals in temperate seas. MARINE POLLUTION BULLETIN 2008; 57:790-800. [PMID: 18328506 DOI: 10.1016/j.marpolbul.2008.01.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2007] [Revised: 01/19/2008] [Accepted: 01/23/2008] [Indexed: 05/26/2023]
Abstract
The artificial mussel (AM), a novel chemical sampling device, has been developed for monitoring dissolved trace metals in marine environments. The AM consists of Chelex-100 suspended in artificial seawater within Perspex tubing and enclosed with semi-permeable polyacrylamide gel at both ends. To validate the field performance of the AM in temperate waters, we deployed AMs alongside transplanted blue mussels Mytilus edulis in coastal environments in Scotland (Holy Loch, Loch Fyne, Loch Striven and Millport) and Iceland (Reykjavikurhöfn, Gufunes, South of thornerney, Hofsvik, Hvalfjörethur and Sandgerethi) for monitoring trace metals. While uptake patterns of Cd between the AM and M. edulis were highly comparable, discrepancies were found in the accumulation profiles of the other metals (Cu, Cr, Pb and Zn), in particular Zn. Nonetheless, the AMs gave a better resolution to accurately reveal the spatial difference in dissolved metal contamination when compared with M. edulis. AMs complement the use of mussels since AMs indicate dissolved metals in seawater, whereas uptake by mussels indicates a mixture of dissolved and particulate metals. Our results also indicated that historical metal exposure of the transplanted M. edulis could significantly confound their metal concentrations especially when the deployment period was short (i.e. <34d). This study suggested that the AM can overcome problems associated with variable biological attributes and pre-exposure history in the mussel, and provides a standardized and representative time-integrated estimate of dissolved metal concentrations in different marine environments.
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Affiliation(s)
- Kenneth M Y Leung
- Institute of Biomedical and Life Sciences, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK.
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