Contamination status of heavy metals and shellfish poisoning in the shellfish samples of Zhejiang coastal areas
浙江近岸海域贝类中重金属和贝毒污染状况研究

Twenty nine samples belonging to 9 species of shellfishes including Cyclina sinensis, Scapharca subcrenat, Mytilus coruscus, Sinonovacula constricta, Bullacta exarata, Ruditapes philippinarum, Meretrix meretrix, Ostrea cucullata and Chlamys farreri were collected from coastal waters of Zhejiang. Heavy metals including mercury, arsenic, copper, lead, zinc, cadmium and paralytic shellfish poisoning toxins, diarrhetic shellfish poisoning toxins were detected. Paralytic shellfish poisoning toxins were detected in RuiAn S. subcrenata and Ruian C. farreri. Content of heavy metals in ShengSi M. meretrix, ShengSi S. subcrenata and LeQing O. cucullata exceed the standard, and oysters have high capability in enrichment of heavy metals such as mercury, copper, zinc and cadmium.