摘要
为了深入探究石家庄市冬春季环境空气中挥发性有机物的污染特征,采用EPA TO-15方法定性定量分析了石家庄市冬春季环境空气中62种挥发性有机物的污染特征,对比了环境空气中VOCs浓度的季度、月度变化情况,以及VOCs与PM2.5浓度之间的相关性,分析了环境空气中主要VOCs组分的来源。结果表明:在石家庄市冬春季环境空气中定量检测到其中的40种VOCs,主要有丙酮、苯、四氯化碳、二氯甲烷、甲苯、乙酸乙酯等;未定量的组分中,检测出了较高的乙酸丁酯、丁烷、乙醇等。在雾霾天气,PM2.5浓度和环境空气中VOCs浓度具有较好的正相关性。
In order to further explore the pollution characteristics of volatile organic compounds in ambient air in winter and spring in Shijiazhuang City, the pollution characteristics of 62 volatile organic compounds （VOCs）, monthly and quarterly vari- ation, the correlation between VOCs and PM2.5, and the main sources of VOCs are investigated by using EPA TO-15 method. It shows that 40 organic compounds of the 64 VOCs have been quantitatively determined in winter and spring in the city, which are mainly acetone, benzene, carbon tetrachloride, dichloromethane, toluene, ethyl acetate, etc.. In the no-quantitatively de- termined components, higher ethanol, butyl acetate, butane etc. are detected. The VOCs concentration has positive correlation with the PM2.5 concentration during haze days.
出处
《河北科技大学学报》
CAS
2015年第3期330-336,共7页
Journal of Hebei University of Science and Technology
基金
河北省科技支撑计划项目(14273712D)
关键词
大气污染防治工程
石家庄市
挥发性有机物
污染特征
相关性
air pollution prevent and control engineering~ Shijiazhuang City
volatile organic compounds~ pollution characteris-tics ~ relativity
