Heavy metal contents in Sousa chinensis in Beihai area

The contents of the heavy metals Cu, Pb, Cd , Zn and Hg in Sousa chinensis were determined. The results showed that the content in liver was higher than in the other organs, and the content of Zn was higher than Cu, Pb, Cd , Hg. Comparison with the fishes , the concentration of heavy metals in Sousa chinensis were higher than them.