环境多氯联苯污染状况研究  

Study on the environmental Pollution of PCBs

作　　者：韩关根[1] 徐盈 凌波[3] 梁鹰 沈阿根[1] 

机构地区：[1]浙江省疾病预防控制中心,杭州310009 [2]中国科院水生生物研究所 [3]中国疾病预防控制中心环境所 [4]LQ疾病预防控制中心

出　　处：《卫生研究》2006年第2期168-170,174,共4页Journal of Hygiene Research

基　　金：浙江省科学技术厅重点研究社会发展项目资助(No.2003C23011)

摘　　要：目的研究废旧变压器拆解场多氯联苯(PCBs)对环境污染的影响。方法以F镇为高暴露区现场;选同一市内相距100公里的P镇为低暴露区;并以无该产业,相距500km的DXG镇为对照区。随机分层抽取自来水、河水、稻田土、晚稻米、鸡(鸭)蛋等样品,采用超痕量分析方法检测其PCBs及TEQs水平。结果三区样品中(除自来水外)的PCBs含量均有差异。其中,鸡蛋的PCBs水平差异最大,鸭蛋次之,稻田土最小。高暴露区样品中PCBs含量大小排序为:鸡蛋>鸭蛋>稻田土>晚稻米>河水>自来水。结论暴露区样品中的PCBs含量有不同程度的升高,高暴露区河鲫鱼和鸡蛋的PCBs含量分别高达9·1、1·1μg/g,已超出GB9674-88海产品中多氯联苯限量卫生标准0·2μg/g的40倍和美国FDA蛋类中允许值(0·3μg/g)3倍,故河鲫鱼、鸡蛋已不宜食用。废旧变压器拆解行业对当地的生态环境已造成明显影响。Objective To investigate the environmental pollution of PCBs from the place where the disused transformers were taken apart. Methods Take town F as the high exposed district for investigating and the town P which 100 kilometres is away from the town F as the low exposed district. At the same time, take town DXG which is 500 kilometres away from town F as the district for contrast. It was random and stated to extract samples of piped water, farmland ,rice and eggs. Then, the exceed-mark-quantity detecting methods were used to detect the PCBs and TEOs level in these samples. Results The content of PCBs in the samples was different except for piped water. Thediversity of the PCBs level in the hen＇s eggs was the most significant, duck＇s eggs took second place and farmland was the least. The order of PCBs level in the samples was ： hen＇ s eggs 〉 duck＇ s eggs 〉 farmland 〉 rice 〉 river water （ stream ） 〉 piped water. Conclusion The content of PCBs in each sample from Town F was higher than town P and town DXG on different levels. So the industry of taking the disused transformer apart had caused pollution of local environment.

关 键 词：废旧变压器拆解埸 多氯联苯污染 生态环境 

分 类 号：R155.3[医药卫生—营养与食品卫生学] R994.6[医药卫生—公共卫生与预防医学]