Analysis and Health Risk Assessment of Metal Content in Sea Cucumber Cultured in Jiaodong Peninsula,Shandong Province
The content and distribution characteristics of eleven metal elements(such as Pb,Cd,Hg)and inorganic arsenic were determined in 130 samples of farmed sea cucumber(Apostichopus japonicus)with body weight from 47.5 g to 98.3 g collected from Jiaodong Peninsula of Shandong Province to assess the potential risks to human health,in order to provide reference and data support for the establishment of health standards for fresh sea cucumber in China.Ten elements including Pb,Cd and As were determined by ICP-MS method,Hg was determined by atomic fluorescence method,and inorganic arsenic was determined by HPLC-ICP-MS.The target hazard quotient(THQ)and total target hazard quotient(TTHQ)were used to evaluate the potential health risk of metals in fresh sea cucumbers.The results showed that the descending order of the average concentration of 11 metal elements in 130 fresh sea cucumber samples was expressed as Al,Zn,Mn,Cu,As,Cr,Ni,Pb,Cd,Sn and Hg.Inorganic arsenic content was less than the detection limit,with the risk order of individual elements was described as Cd＞Cr＞Pb＞Cu＞Al＞Zn＞Mn＞Ni＞Hg,and both the THQ and TTHQ of less than one.In conclusion,consumption of sea cucumber farmed in Jiaodong Peninsula of Shandong Province is not dangerous to human.Among eleven metal elements,Cd was the most harmful element to human health,with a contribution rate of 25.6％,so that should be paid more attention the potential risk of Cd in sea cucumber to human health.
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