鞍山市总悬浮颗粒物中多环芳烃分布特征

Distribution of PAH in TSP in Anshan

通过对鞍山市典型区域(6个污染源、4个居住区、一个对照点)大气中总悬浮颗粒物(TSP)的监测,采用GC/MS法分析了总悬浮颗粒物中16种PAHs的含量,探讨了鞍山市总悬浮颗粒物浓度及16种多环芳烃的分布特征及来源。研究结果表明,鞍山市大气中总悬浮颗粒物采暖期普遍比非采暖期高1.1～2.5倍,总悬浮颗粒物中PAHs总量采暖期也远远高于非采暖期;鞍钢6个点位在非采暖期的PAHs总量均远远高于其他五个点位,表明了工业污染导致的环境空气质量下降是不容忽视的。

This study analyses 16 kinds of polycyclic aromatic hydrocarbons（PAHs） in total suspended particulates（TSPs） across the typical areas of Anshan（6 pollution sources ,4 residential areas and 1 control point）with GC/MS method. The distribu- tions and sources of 16 PAHs in TSP were investigated. Results show that the atmospheric TSP was higher by 1.1 to 2. 5 times in heating season than in non - heating season. The total concentration of PAHs was also much higher in heating period than in non - heating period. The total concentration of PAHs in six sites in Anshan Iron and Steel Group Corporation was much high than the other five sites even during the non - heating period, mirroring the significant impacts of industrial pollution on atmospheric envi- ronment.