北京石景山古城地区大气中有机污染物定性定量研究  

Qualitative and quantitative study on qrganic pollutants in the air of Shijingshan Gucheng district in Beijing

作　　者：曾凡刚[1] 

机构地区：[1]中国人民大学环境学院,北京100872

出　　处：《安徽大学学报（自然科学版）》2002年第2期97-102,共6页Journal of Anhui University(Natural Science Edition)

基　　金：北京市自然科学基金资助项目 (8972 0 0 7)

摘　　要：对北京石景山古城地区大气中有机质浓度、各族组成及其饱和烃、多环芳烃的组成和分布特征进行了分析。大气飘尘芳烃中共检测出 4 0多种多环芳烃 ,其中很多属于美国国家环保局 (EPA)优先控制污染物 ,具有致癌和怀疑有致癌的多环芳烃。其主要来源于煤的不完全燃烧 ,也有相当部分来源于汽车尾气的排放。其中煤比石油所造成的污染更为严重。从本次所测定的典型多环芳烃的含量即可发现 ,经过几年大力整治 ,特别是经过北京市蓝天工程 ,2 0 0 1年大气中的多环芳烃含量比 1997年低得多 ,使北京市大气环境质量得到了很大的改善。The density of the organic matter, the composition of each group constituent, the composition and distribution characteristics of the saturated hydrocarbons and PAHs in the air-borne dusts in Beijing municipality are analyzed in the paper. There are more than 80 kinds of PAHs in the air-borne dusts, most of which are precedence-controlled pollutants to the Environment Protection of America(EPA).Many PAHs which are carcinogenic or are suspected to be carcinogenic are mainly come from the incomplete combustion of the fossil fuel such as coal?petroleum etc, and the plant. The coal can cause more grave pollution that the petroleum during the incomplete combustion. Throught some years control, We find that 20 kinds of PAHs concentration is lower 2001 than 1997 in the aerosol of Shijinshan Gucheng,this make quality of air have gotten very great improvment in Beijing.

关 键 词：北京石景山古城地区 大气 有机污染物 定理 定理 研究 

分 类 号：X51[环境科学与工程—环境工程]