Pollution characteristics and health risk assessment of lead,cadmium,and mercury in animal derived marine products in the Jiangsu coastal waters
To comprehensively understand the current situation and consumption risks of lead,cadmium,and mercury in animal derived marine products in the coastal areas of Jiangsu,from April to November in 2022,four types of ma-rine products were collected from fishing boats,port dock stalls,and nearshore aquaculture in three coastal cities of Nantong,Yancheng,and Lianyungang,and the content of lead,cadmium,and mercury were determined. Heavy metal pollution degree and consumption risk were evaluated by the single factor pollution index and target hazard fac-tors method. The experimental results showed that the cadmium exceeding rate and lead exceeding rate of animal de-rived marine products in the coastal areas of Jiangsu were 5.4％ and 06％,respectively. The mercury concentration of all samples was within the safety limit. The average value of cadmium single factor pollution index was 0299,which is generally at a mild pollution level. The average values of single factor pollution indices for lead and mercury were 0080 and 0035,respectively. Marine products in the coastal areas of Jiangsu were not contaminated by lead and mercury. The target hazard quotients and the total target hazard quotients of the four types of seafood were all less than 1,indicating that there was little risk to human health from exposure to three heavy metal elements in marine products from the coastal areas of Jiangsu.[Chinese Fishery Quality and Standards,2024,14(4):20-27]
万方数据
维普
