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  • Title: Heavy Metal Levels in Fish from Heilongjiang River and Potential Health Risk Assessment.
    Author: Jiang H, Qin D, Chen Z, Tang S, Bai S, Mou Z.
    Journal: Bull Environ Contam Toxicol; 2016 Oct; 97(4):536-42. PubMed ID: 27473127.
    Abstract:
    Concentrations of Cu, Zn, Cr, As, Cd, Pb and Hg were determined in 153 samples covering 18 fish species collected from Heilongjiang River, China, and the potential health risks to local residents through fish consumption were estimated. Results revealed that all metals were detected with Cd and Pb having considerably lower detection rate. There were 28.6 % of Lethenteron camtschaticum samples exceeding the limit of inorganic As content established by Chinese legislation. Metal bioaccumulation in fish were poorly correlated with fish sizes, and generally tended to increase with trophic levels. The hazard quotient values of all fish species were far below 1 for general population and fishermen. The carcinogenic risk of As in L. camtschaticum for the local fishermen exceeded the acceptable level of 10(-4) rise in cancer rates, but was considered safe given the migratory habits of the fish.
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