Pan Xiao-Dong, Han Jian-Long
Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
Mar Pollut Bull. 2023 Apr;189:114808. doi: 10.1016/j.marpolbul.2023.114808. Epub 2023 Mar 11.
The distribution of six heavy metal and metalloids (As, Cd, Cr, Hg, Ni and Pb) was analyzed in 597 bivalve mollusks (8 species) collected from coastal areas of southeast China. Target hazard quotient, total hazard index, and target cancer risk were calculated to evaluate potential human health risks from bivalve consumption. The mean concentrations of As, Cd, Cr, Hg, Ni and Pb were 1.83, 0.581, 0.111, 0.0117, 0.268 and 0.137 mg kg wet weight in bivalves. The average estimated daily intakes for As, Cd, Cr, Hg, Ni and Pb were 1.156, 0.367, 0.07, 0.007, 0.167 and 0.087 μg kg body weight/day. Health risk assessment showed that there was no non-carcinogenic health risk to general residents to these metals from consumption of bivalves. Cd intake through mollusks posed a potential cancer risk. Accordingly, regular monitoring for heavy metals, especially Cd is recommended with respect to potential contaminant on marine ecosystems.
对从中国东南部沿海地区采集的597只双壳贝类软体动物（8个物种）中的六种重金属和类金属（砷、镉、铬、汞、镍和铅）的分布情况进行了分析。计算了目标危害商数、总危害指数和目标癌症风险，以评估食用双壳贝类对人类健康的潜在风险。双壳贝类中砷、镉、铬、汞、镍和铅的平均浓度分别为1.83、0.581、0.111、0.0117、0.268和0.137毫克/千克湿重。砷、镉、铬、汞、镍和铅的平均估计每日摄入量分别为1.156、0.367、0.07、0.007、0.167和0.087微克/千克体重/天。健康风险评估表明，食用双壳贝类对普通居民而言，这些金属不存在非致癌健康风险。通过软体动物摄入镉存在潜在癌症风险。因此，建议针对海洋生态系统中的潜在污染物对重金属，尤其是镉进行定期监测。
