Evaluation of heavy metal pollution and risk assessment of dietary intake of pollutants in chinese mitten crab (Eriocheir sinensis) in main aquaculture areas of Northeast China

Abstract

A systematic survey of heavy metal (Pb, Cd, Cr, As and Hg) concentrations in pond water, sediment and products of Chinese mitten crab (Eriocheir sinensis) aquaculture areas was carried out to assess their potential health risks to local people. The samples were all collected in the Liaoning Province, in the northeast of China. According to the results, the studied aquatic environment is not severely affected by heavy metal pollution at this time. As a result, local dietary exposure to these pollutants is still below the JECFA recommended values.