淄博市大气颗粒物中POPs污染水平研究

A Study on Pollution Level of Typical POPs in Atmospheric Aerosols in Zibo

为了调查淄博市POPs的污染水平, 在全市不同功能区设置了5个采样点, 采集了采暖期和非采暖期大气颗粒物样品.在对颗粒物样品进行前处理后, 通过GC/MS和GC-ECD,分析测定了颗粒物上PAHs、PAEs、PCBs和OCPs四类典型POPs的浓度.结果表明, 淄博市市区混合区和县城混合区污染较为严重, 采暖季污染较非采暖季严重, 这归因于采暖季燃煤量的增加.PAHs成分以4～6环为主, PAEs以DBP和DEHP为主, PCBs污染主要以四氯联苯、五氯联苯和六氯联苯为主, OCPs中含量最高的是艾氏剂和狄氏剂.

To investigate the pollution levels of POPs in Zibo City, atmospheric particle samples during heating period and non-heating period were collected at five sampling sites which were set up in different functional regions. After preliminary treatment for the samples, four typical POPs species, the PAHs, PAEs, PCBs and OCPs, were analyzed using GC/MS and GC-ECD. The results showed that the mixing regions of Zibo downtown and county were severely polluted and the pollution levels were much higher during heating period than non-heating period, which was attributed to the increased coal combustion during heating period. The 4~6 rings PAHs, DBP and DEHP, and were found to be the major composition of PAHs, PAEs, and PCBs, respectively. As for OCPs, the amount of aldrin and dieldrin were the highest.