Study on heavy metal enrichment and risk assessment of Silurus meridoualis and Pelteobagrus fulvidraco in Shatuo hydropower station of the Wujiang river

doi:10.14088/j.cnki.issn0439-8114.2020.12.033

Abstract

Abstract: In order to understand the present situation of heavy metal enrichment and food safety of fish in the Shatuo reservoir of the Wujiang river, the heavy metal content in the muscle of Silurus meridoualis and Pelteobagrus fulvidraco were determined by inductively coupled plasma emission spectrometry （ICP-AES） and atomic fluorescence spectrophotometry （HCHG-AFS）. The results showed that the contents of different heavy metals in the muscles of the fish were different, and the content of Zn in two kinds of fish muscles was the highest, and the content of Cu, Cr, Pb and Hg in the muscle of Pelteobagrus fulbate were all higher than that of S. meridoualis. The content of heavy metals in muscle of two species of fish was lower than the national standard. The results of hazard index showed that the human health risk of edible S. meridoualis and P. fulvidraco in the Shatuo reservoir of the Wujiang river was relatively small. The results of single factor pollution index of heavy metals showed that the pollution degree of Pb, Hg and Cd were high in fish from the Shatuo rreservoir, and there was a potential heavy metal pollution risk in the Shatuo reservoir of the Wujiang river.

Key words: Silurus meridionalis, Pelteobagrus fulvidraco, heavy metal, edible health risk assessment, Shatuo hydropower station reservoir

CLC Number:

X503

BA Jia-wen, WEI Yan-wei, YAN Han-lin, XU Cheng-xiang, LI Zhong-li, MEI Jie. Study on heavy metal enrichment and risk assessment of Silurus meridoualis and Pelteobagrus fulvidraco in Shatuo hydropower station of the Wujiang river[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(12): 149-153.

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