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Pollution Characteristics Analysis and Risk Assessment of Total Mercury and Methylmercury in Aquatic Products of the Haihe Stem River



Pollution Characteristics Analysis and Risk Assessment of Total Mercury and Methylmercury in Aquatic Products of the Haihe Stem River



Huan Jing Ke Xue= Huanjing Kexue 37(3): 942-949



In this study, we analyzed the concentrations of total mercury (THg) and methylmercury (MeNg) in the aquatic products from the Haihe Stem River, and also assessed the risk for the consumers. According to our results, the MeHg and THg concentrations in the aquatic products were 42.51 and 77.31 ng · g⁻¹, respectively (wet weight) . The majority of THg in the aquatic products existed in the form of MeHg (accounting for over 50%). The mercury concentrations varied significantly among different organs in the fish. The BCFs of MeHg for the fish and zoobenthos in the Haihe River were 1.00 x 10 and 4.23 x 10⁴mLg , respectively. Compared with THg, MeHg could accumulate more easily in the aquatic products. Generally, the maximum MeHg and THg concentrations of the aquatic products were much lower than the limit values in China. However, compared with the adults, the MeHg exposure risk for the children was higher, and the THg and MeHg intake could be as high as 154.07 ng (kgd) and 81.11 ng (kg.d)⁻¹, respectively.

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Accession: 058568898

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PMID: 27337885


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