城市大气颗粒物中多环芳烃的源解析研究  

Study of Source Apportionment of PAHs in Atmospheric Suspended Particles in City

作　　者：魏强[1] 房春生[1] 杨萌尧[1] 王菊[1] 孙柏峰[1] 

机构地区：[1]吉林大学环境科学系,吉林长春130012

出　　处：《安徽农业科学》2012年第9期5404-5405,5412,共3页Journal of Anhui Agricultural Sciences

基　　金：教育部产学研用合作创新项目(OSR 01-06)

摘　　要：[目的]研究吉林市大气颗粒物(TSP)样品中多环芳烃(PAHs)分布状况。[方法]对吉林市4个采样点2005年大气颗粒物中PAHs进行分析,分析检出的16种PAHs的浓度特征与污染状况,并采用因子分析与多元线性回归方法对大气颗粒物样品中PAHs进行源解析。[结果]区域内16种PAHs浓度最小值为0.006 6 ng/m3,最大值为137.480 2 ng/m3,样品∑PAHs浓度范围为14.239 4～445.436 5 ng/m3,平均浓度为118.775 6 ng/m3,非采暖期样品平均∑PAHs大于采暖期;主要污染物来源为汽油及天然气燃烧与燃煤源,贡献率分别为77.85%、18.42%,其他源贡献率为3.73%。[结论]该研究可为确定污染物来源、制定吉林市大气污染物防治规划提供理论依据。[ Objective ] The aim was to study PAHs distribution status of atmospheric suspended particles in Jilin City. [ Method ] Levels of 16 PAH species in atmospheric total suspended particles of Jilin City at 4 sites during 2005 were determined. Source apportionment results of PAHs were obtained form the factor analysis and multiple linear regression. [ Result] The minimum and maximum of 16 PAHs was 0.006 6and 137. 480 2 ng/m^3, respectively. The average summation of the 16 PAHs （∑PAHs） was 118. 775 6 ng/m^3, the range was 14. 239 4 - 445. 436 5 ng/m^3. The average∑PAHs of non-heating period was higher than that of heating period. PAHs mainly originated from gasoline and gas-related sources and the contribution rate was 77.85%, coal-related sources as a second source and the contribution rate was 18.42% , the other sources contribution rate was 3.73%. [ Conclusion] The study provides a theoretical basis for confirming the source of pollutant and draw up planning of atmospheric pollution control.

关 键 词：源解析 PAHS 因子分析 多元线性回归 

分 类 号：S19[农业科学—农业基础科学] X51[环境科学与工程—环境工程]