Concentrations of trace elements in meretrix spp (mollusca bivalva) along the coasts of vietnam

Concentrations of trace elements in Meretrix spp (Mollusca: Bivalva) along the coasts of Vietnam Tu N.P.C., Ha N.N., Agusa T., Ikemoto T., Tuyen B.C., Tanabe S., Takeuchi I Faculty of Agriculture, Department of Life Environment Conservation, Ehime University, Matsuyama, Ehime 790-8566, Japan; Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan; Department of Legal Medicine, Shimane University Faculty of Medicine, Izumo, Shimane 693-8501, Japan; Research Institute for Biotechnology and Environment (RIBE), Nong Lam University, Thu Duc District, Hochiminh City, Viet Nam Abstract: The dominant coastal bivalve in Vietnam, hard clams Meretrix spp., collected from the South Key Economic Zone (SKEZ), the Mekong River Delta, and the Central Coastal Zone (CCZ) were analyzed for 21 trace elements Comparison of the results from the three regions indicated that levels of most of the trace elements, especially As, Mo, Sn, and Pb, were highest in the samples collected from the CCZ, whereas most of the trace elements were found to be present at relatively low levels in samples from the SKEZ The high concentrations of these trace elements in the CCZ, a sparsely populated region with less human activity than the other two regions, were believed to have originated from industrial waste produced in a shipyard Although the trace element concentrations in the bivalves were within safe levels for human-consumption criteria reported by the United State Food and Drug Administration and the European Commission, estimation of cancer risk based on As concentration indicates that the hard clams from the CCZ pose a high risk to consumers Thus, the industrial waste produced in the less densely populated region might increase the health risk to consumers via the contamination of bivalves commonly used as food © 2010 The Japanese Society of Fisheries Science Author Keywords: Health risk; Meretrix; Shipyard waste; Trace element; Vietnam Index Keywords: Bivalvia; Meretrix; Mollusca Year: 2010 Source title: Fisheries Science Volume: 76 Issue: Page : 677-686 Link: Scorpus Link Correspondence Address: Takeuchi, I.; Faculty of Agriculture, Department of Life Environment Conservation, Ehime University, Matsuyama, Ehime 790-8566, Japan; email: takeuchi@agr.ehime-u.ac.jp ISSN: 9199268 CODEN: FSCIE DOI: 10.1007/s12562-010-0251-5 Language of Original Document: English Abbreviated Source Title: Fisheries Science Document Type: Article Source: Scopus Authors with affiliations: Tu, N.P.C., Faculty of Agriculture, Department of Life Environment Conservation, Ehime University, Matsuyama, Ehime 7908566, Japan Ha, N.N., Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan Agusa, T., Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan, Department of Legal Medicine, Shimane University Faculty of Medicine, Izumo, Shimane 693-8501, Japan Ikemoto, T., 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