摘要
于2014年冬季在海口市两个采样点采集大气PM_(2.5)样品,采用超声萃取和GC/MS分析了PM_(2.5)中16种PAHs,探讨了其含量分布特征,并运用因子分析/多元线性回归对PAHs来源进行定性和定量源解析。结果表明,冬季PM_(2.5)中PAHs质量浓度为3.191~15.539ng/m3,两个采样点平均质量浓度为6.771 ng/m^3;高温热解和交通污染混合源、生物质燃烧、天然气是PM_(2.5)中PAHs的3类主要来源,其贡献率分别为74%、10%、16%。
Atmospheric PM2.5 .samples were collected at two sites in Haikou winter of 2014. 16 types of polycyclic aromatic hydrocarbons （PAHs） in PM2.5 samples were measured by ultrasonic extraction and analyzed by GC/MS method to discuss distribution characteristics and the sources of PAHs were qualitatively and quantitatively analyzed by factor analysis and multiple linear regression（FA/MLR）. The results showed that the concentration range of PAHs in PM2.5 was 3. 191 - 15. 539 ng/m3 and the average concentration of the two sampling sites was 6. 771 ng/m3. FA/MLR showed that the high temperature pyrolysis and traffic pollution mixed sources, biomass burning, and natural gas were three main pollution sources of PAHs in PM2.5, and the contribution rate to PAHs was 74%, 10% and 16%, respectively.
出处
《安徽农业科学》
CAS
2015年第28期228-230,共3页
Journal of Anhui Agricultural Sciences
基金
海南医学院培育基金(HY2012-023)
