生态环境学报Issue(6)：1009-1014,6.
吉林省典型城市大气中PAHs来源解析
Source apportionment of polycyclic aromatic hydrocarbons in typical cities of Jilin province
摘要
Abstract
The thesis analyzed the atmospheric particulate samples collected in four cities (Jilin, Baicheng, Siping and Tonghua) in Jilin Province and 16 kinds of PAHs were detected in these samples. Principal component analysis and characteristic ratio method were used to qualitatively analyze the PAHs, and two major sources were identified-vehicle emissions and coal combustion. The contributions from the two major sources were measured in further quantitative calculation with absolutely principal component analysis. The results show that: the calculated value of the typical cities of Jilin province is 772.39 μg·g-1, most ratios between calculated and monitoring values are close to 1. The vehicle emissions contributed 2.6%~67.6%of various PAHs, coal combustion 24.1%~121.2%. In addition, the contributions of the two identified sources to different ring-PAHs were also estimated. The 2~3 ring-PAHs were estimated most from coal combustion, about 89%, only 11%from vehicle emissions;the 4 ring-PAHs contributed by the coal combustion were 58%, and vehicle emissions 42%; contributions of the 5-ring PAHs from coal combustion and vehicle emissions were 45%and 55%, respectively;the higher members were mainly contributed by the coal combustion (61%), and vehicle emissions 39%.关键词
PAHs/源解析/特征比值/主因子分析/绝对主因子分析Key words
PAHs/source apportionment/characteristic ratio/principal component analysis/absolutely principal component analysis分类
资源环境引用本文复制引用
房春生,刘多,温卓,王菊..吉林省典型城市大气中PAHs来源解析[J].生态环境学报,2013,(6):1009-1014,6.基金项目
“十二五”国家科技重大专项 （）
