杭州湾南岸小海鲜和滩涂环境中的多氯联苯研究.doc

杭州湾南岸小海鲜食品和滩涂环境中的多氯联苯研究 龚文杰1，施家威2,马建明1，吴建根1,徐毅1 摘要：目的 研究杭州湾南岸小海鲜食品和滩涂环境中多氯联苯的污染水平及其相关性。方法 2010年至2011年沿杭州湾南岸的六个滩涂养殖区采集7种小海鲜食品和相应的滩涂沉积物，采用气相色谱-质谱(GC-MS/MS)联用测定，并对结果用SPSS 16.0进行数据分析。结果 7大类880份小海鲜食品中多氯联苯残留量为5.67～288.61μg/kg，环境沉积物多氯联苯残留量为2.14～44.14μg/kg，各养殖区域的小海鲜和沉积物多氯联苯含量差异有统计学意义（P0.05）。沉积物中多氯联苯含量与小海鲜体内多氯联苯水平呈显著性相关(t=0.817,P=0.047)，并向生物体不断富集放大。结论 杭州湾南岸小海鲜食品和滩涂环境中均检出多氯联苯残留，说明该地区受到多氯联苯不同程度的污染，环境中多氯联苯与小海鲜食品呈显著性相关。 关键词：杭州湾南岸；多氯联苯；小海鲜食品；滩涂 Study on polychlorinated biphenyls in Seafood and tidal-flat environment from South of Hangzhou Bay Gong wen-jie*, Si jia-wei, Ma jian-ming, et al(*Cixi Center for Disease Control and Prevention，Cixi 315300，ChinaAbstract：Objective Correlation study on polychlorinated biphenyls(PCBs) pollution level in seafood and tidal flat environments from the South of Hangzhou Bay. Methods 7 kinds of seafood and the corresponding tidal-flat sediments were collected from tidal-flat cultured in South of Hangzhou Bay from 2010 to 2011. The contents of PCBs were determined with GC-MS/MS, and the results were analyzed by SPSS 16.0. Results Concentration ranges of PCBs in 880 samples from 7 kinds of seafood were 5.67～288.61μg/kg, Concentration ranges of PCBs in tidal-flat sediments were 2.14～44.14μg/kg.There are significant difference content of PCBs in seafoods and tidal-flat sediments from different tidal-flat cultured areas(P0.05) .content of PCBs in seafood was significantly correlated with tidal-flat sediments(t=0.817, P=0.047), also continuously concentrating and amplifying. Conclusion Residues of PCBs was detectable in the seafood and tidal-flat area from the South of Hangzhou Bay, and significantly related. The seafood and tidal-flat area has been subjected to a different degree pollution of PCBs. Keywords: polychlorinated biphenyls; South of Hangzhou Bay; Seafood; tidal-flat area 多氯联苯具有很强的化学稳定性和低电导率，曾广泛应用于变压器、电容器的绝缘油、油漆、油墨、防滑剂和可塑剂等。由于其具有亲脂性和蓄积性，环境中多氯联苯残留可通过生物链蓄积在生物体中，具有致癌、致畸与致突变作用，并逐渐放大富集，最终威胁人类健康。《斯德哥尔摩公约》第一批将多氯联苯列为持久性有机污染物质之一，虽然于20 世纪7