摘要
[目的]了解上海市市售海水产品中7种指示性多氯联苯（PCBs）的污染水平，评估市民的膳食暴露量。[方法]指示性PCBs含量的测定采用气相色谱一质谱法，海水产品的摄入量参考WHO全球环境监测系统／食品污染物监测规划（GEMS／food）的数据。[结果]7种指示性PCBs的检出率为47．5％，优势单体为PCB138和PCB153。检出值范围：∑7（PCBs）为0．20～8．56μg／kg，PCB138为0．20—6．40μg／ks，PCB153为0．21～4．60μg／kg。估计膳食暴露量为32．0ng／标准人日。[结论]上海市市售海水产品中指示性PCBs的含量较低，∑7（PCBs）、PCB138和PCB153均未超过国家限量标准，指示性PCBs的膳食暴露水平并不比其他地区高。
[ Objective] To analyze the concentration of indicative polychlorinated biphenyls （PCBs） in market seafood of Shanghai and assess the dietary exposure of the citizens. [ Methods ] Indicative PCBs in seafood were determined with GC - MS. The GEMS/food database were consulted for the seafood consumption of Shanghai population. [Results] The detection rate of seven indicative PCBs was 47.5% ,The rain. - max. level of ∑7 （ PCBs）, PCB138 and PCB153 were 0.20 - 8.56, 0. 20 - 6.40 and 0.21 - 4.60 μg/kg wet weight respectively. The estimated dietary intake of ∑7 （ PCBs ） for Shanghai citizens was 32.0 ng/standard person per day. [ Conclusion] The levels of seven indicative PCBs in Shanghai market seafood are low. The maximum concentration of ∑7 （PCBs）, PCB138 and PCB153 in all samples are within the national limits. The estimated dietary intakes of ∑7 （PCBs） for Shanghai citizen were not higher than that in other areas.
出处
《上海预防医学》
CAS
2009年第7期333-335,共3页
Shanghai Journal of Preventive Medicine
关键词
海水产品
指示性多氯联苯
膳食暴露评估
Seafood
Indicative polychlorinated biphenyls
Dietary exposure assessment
