Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 24, Issue 4, Pages 4174-4184Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-016-8163-2
Keywords
Metal pollution; Homa Lagoon; Bivalves; Bioindicator; Human health risk
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Funding
- Department of Scientific Research Projects of Dokuz Eylul University [2014.KB.FEN.004]
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Seasonal variations of tracemetal concentrations (Hg, Cd, Pb, Cr, Zn, and Cu) were investigated in the hepatopancreas and soft tissues (remaining parts of bivalves such as gill, mantle, foot, and muscle) of Tapes decussatus and Mytilus galloprovincialis from theHomaLagoon. The highest metal concentrations were recorded frequently in February and July in M. galloprovincialis and T. decussatus, respectively. Tracemetal levels (exceptZn) in the hepatopancreaswere higher than those in soft tissue for both bivalves. The results showed that the mean concentrations of Hg, Cd, and Zn for M. galloprovincialis were higher compared to T. decussatus in both tissues. The metal concentrations in both bivalves from the Homa Lagoon were generally below the values of provisional tolerable weekly intake (PTWI) estimates, in terms of human health risk. According to hazardquotient(HQ), Crvalues forbothspeciesandCdvalues for only M. galloprovincialis were found greater than one. Also, total hazard index (THI) values were greater than one in both bivalves, having a potential risk for consumers.
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