沈阳市典型区域环境空气中挥发性有机物污染状况分析  

作　　者：李晶[1] 曲健[1] 王成辉[1] 王帅[1] 

机构地区：[1]沈阳市环境监测中心站,辽宁沈阳110169

出　　处：《环境保护与循环经济》2018年第7期58-60,共3页environmental protection and circular economy

摘　　要：2013年在沈阳市典型区域设置采样点采集环境空气,利用气相色谱—质谱联用仪测定了VOCs中的54种目标化合物,分析了2013年沈阳市大气中VOCs的浓度水平、污染特点、物种污染来源以及物种活性评价。结果表明,与国内其他城市相比,沈阳市VOCs的检出浓度处于较低水平,其中烷烃、芳香烃污染较重,烯烃的反应活性和臭氧生成贡献最大,芳香烃的二次有机气溶胶的贡献最大。Ambient air samples were collected in typical regions of Shenyang city in 2013. 54 kinds of target com-pounds of VOCs were analyzed by gas chromatographic-mass spectrometry so as to analyze the concentration lev-el, pollution characteristics,species pollution source and evaluation of species activity. Results showed that com-pared with other cities of China,the concentration of VOCs in Shenyang was at lower level. The pollution of alka-ne and aromatic hydrocarbons was heavier. Reaction activity of alkene was the largest,so was ozone generating contribution as well. The contribution of secondary organic aerosol of aromatic hydrocarbon was the largest.

关 键 词：挥发性有机化合物 污染特点 反应活性 污染来源 

分 类 号：X823[环境科学与工程—环境工程]