不同海域鲍体镉分布特征与健康风险评价

文章对中国部分海域鲍体镉（cd）的质量分数与分布特征进行了分析讨论，并对鲍体cd对人体的健康风险进行了评价。结果表明，1）鲍体W（Cd）总体上呈正态分布，其平均值为0．88mg·kg^-1，变化范围为0．06-1 2．02mg·kg^-1，其中广东、福建、山东和辽宁海域鲍体W（Cd）分别为（0．42±0．21）mg·kg^-1、（0．61±0．27）mg·kg^-1、（1．21±0．35）mg·kg^-1和（1．52±0．20）mg·kg^-1，不同海域鲍体W（Cd）差异显著（P〈0．05）。2）鲍体W（Cd）高于鱼类、头足类和甲壳类海洋生物，与贝类产品埘（Cd）相当；鲍体W（Cd）与栖息环境中cd的污染程度有密切关系。3）鲍体cd对人体的致癌性年风险指数低于国际辐射防护委员会推荐的风险水平，通过鲍膳食途径的人体cd暴露量低于世界卫生组织／联合国粮食和农业组织的食品添加剂联合专家委员会推荐的暂定每周耐受摄人量推荐值。研究结果对于鲍的健康养殖和安全消费具有指导意义。

Distribution characteristics and health risk assessment of cadmium in abalone from various coastal waters

We described the content and distribution of cadmium （Cd） in abalone in some coastal waters in China, and assessed its health risk to human beings. The results show that： 1 ） The distribution of Cd content in abalone is accord with normal distribution, and the average Cd content is 0. 88 mg＇kg-1 , ranging from 0. 06 mg-kg-1 to 2. 02 mg·kg-1. The Cd contents （wet weight, mg.kg^-1 ） in abalone from provinces of Guangdong, Fujian, Shandong and Liaoning are （0. 42 ± 0. 21 ） mg·kg-1 , （0. 61 ± 0. 27） mg·kg-1 , （1.21 ±0. 35） mg-kg-1 and （1.52 ±0. 20） mg·kg-1 , respectively, with significant difference （P 〈0. 05） ; 2） The Cd content in abalone, which is related with the extent of Cd pollution, is equal to that in shellfish, higher than that in fish, cephalopod and crus- tacean; 3） The yearly carcinogenic hazard index of Cd residue in abalone is lower than the value recommended by the International Commission on Radiological Protection （ICRP）, and the Cd content is lower than the provisional tolerated weekly intake （PTWI） rec- ommended by JECFA. The research provides references for the healthy culture and safe consumption of abalone.