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Distribution of Cadmium in Seawater, Sediment and Soft Tissue of Bivalve in Van Don Coastal in Quang Ninh, Vietnam
Corresponding Author(s) : Luu Ngoc Thien
Asian Journal of Chemistry,
Vol. 30 No. 7 (2018): Vol 30 Issue 7
Abstract
Level of cadmium were determined in coastal water, sediments and soft tissues molluscs hakf-crenate ark (Anadara subcrenata), noble scallop (Mimachlamys nobilis) and undulating venus (Paphia undulata), from two stations in bivalves harvesting areas in Van Don, Quang Ninh province. In this study, cadmium concentration in seawater ranged between 0.22 to 1μg.L-1 while that concentration in sediment were from 0.59 to 1.55 mg kg-1. Accumulate cadmium in hakf-crenate ark (Anadara subcrenata), noble scallop (Mimachlamys nobilis) and undulating venus (Paphia undulata) were from 0.81 to 1.48 mg kg-1; from 0.35 to 2.23 mg kg-1; from 0.25 to 0.81 mg kg-1, respectively. The result also show that the cadmium in seawater in rain season were higher dry season while reversibility trend in sediment. The cadmium fraction in sediment in this area were contributed according to follow: residual component (F5) > Mn, Fe oxyhydroxide (F3) > organic matter-bound (F4) > acid soluble (F2) > ion-changeable (F1). Cadmium levels in tissue were in the order of stomach > mantle > gill > foot. Beside, cadmium component in adductor muscle of noble scallop were least. The results of study could serve as a baseline for future assessments of anthropogenic effect in this coastal and food safety problems.
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References
APHA, Standard Methods for the Examination of Water and Wastewater, American Public Health Association, American Water Works Association and Water Pollution Control Federation: Washington, edn 19, pp. 397-404 (1995).
UNEP/IOC/IAEA, Determination of Total Cadmium in Estuarine Waters and Suspended Matter (1982).
FAO, FAO Fish. Tech. Pap., 158, 124 (1976).
A. Tessier, P.G.C. Campbell and M. Bisson, Anal. Chem., 51, 844 (1979); https://doi.org/10.1021/ac50043a017.
Ministry of Natural Resources and Environment of Vietnam, National Technical Regulation on Marine Quality in Vietnam, Decision 67/2015/QD-BTNMT 21/12 (2015).
D.J. Balgan Anand and S.M. Jelastin Kala, Int. Res. J. Environ. Sci., 4, 22 (2015).
N.C. Hoi and L.V. Dieu Water Environmental Quality of Ha Long Bay, Vietnam, International Development Research Center Ottawa, Canada pp. 68-71 (1995).
Ministry of Natural Resources and Environment of Vietnam, National Technical Regulation on Sediment Quality in Vietnam, Decision 10/2012/TT-BTNMT 12/10 (2012).
N.N. Anh, Ph.D. Thesis, The Surface Sediment Characteristics and Evolutionary Dynamics in Hai PhongQuang Ninh Coastal, Department of Geological Department, Ha Noi University of Science Hanoi, Vietnam (2014).
K. El-Moselhy and M.H. Yassein, Egypt. J. Aquat. Res., 31, 13 (2005).
I. Mat, Bull. Environ. Contam. Toxicol., 52, 833 (1994); https://doi.org/10.1007/BF00200691.
T.K.P. Nguyen and N.C. Khoa, Asian J. Chem., 25, 8552 (2013); https://doi.org/10.14233/ajchem.2013.14838.