研究论文
曾凡刚,王关玉,田健,虞统,张红远.北京市部分地区大气气溶胶中多环芳烃污染特征及污染源探讨[J].环境科学学报,2002,22(3):284-288
北京市部分地区大气气溶胶中多环芳烃污染特征及污染源探讨
- Pollution characteristics and source apportionment of PAHs in atmospheric aerosols of some regions in Beijing
- 基金项目：北京市自然科学基金资助项目(8972007)
- 作者
- 单位
- 曾凡刚
- 中国人民大学环境学院, 北京 100872
- 王关玉
- 北京大学地球与空间科学学院, 北京 100871
- 田健
- 北京大学地球与空间科学学院, 北京 100871
- 虞统
- 北京市环境保护监测中心, 北京 100044
- 张红远
- 北京市环境保护监测中心, 北京 100044
- 摘要：对北京市不同功能区在不同季节大气气溶胶中多环芳烃污染特征及污染源进行了探讨.在石景山、前门、农展馆、十三陵等地区的气溶胶有机污染物中均检测出EPA优先控制的16种多环芳烃.在一年中, 冬季有机污染物浓度大约为春季或夏季的10倍左右, 夏季有机污染程度最低.冬季(12月-24日)大气中强致癌的多环芳烃BaP在所有地区均超过国家标准(10ng/m3), 农展馆地区超标2.5倍, 前门地区超标5倍, 石景山地区超标7.5倍.这些有机污染物主要来源于煤的不完全燃烧, 也有相当部分来源于汽车尾
- Abstract：The pollution chatacteristics and source apportionment of PAHs in atmospheric aerosols in different furctional districts in four seasons of 1998 were inquired into.16 precedence controlled PAHs of EPA were detected in the aerosol samples of Shisanling, Nongzhanguan, Qianmen and Shijingshan.The concentration of organic pollutants in winter was about 10 times higher than that in spring or summer.The lowest value was in summer.The concentration of highly carcinogenic BaP in aerosols of winter at the four regions all exceeded the national level (10ng/m3).The concentration of BaP in aerosols was 2.5 times higher than the national level in Nong Zhanguan, 5 times in Qianmen and 7.5 times in Shijingshan.These organic pollutants mainly originated from the incomplete combustion of coal and from vehicular exhaust partly.
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