收稿日期: 2013-08-22
修回日期: 2013-11-02
网络出版日期: 2014-05-15
基金资助
国家自然科学基金（41005065、41375132）和国家环境保护公益性科研专项（201009001、201309011、201409003）资助
Characteristics of volatile organic compounds and relative pollutants observed in autumn in Beijing
Received date: 2013-08-22
Revised date: 2013-11-02
Online published: 2014-05-15
罗达通 , 高健 , 王淑兰 , 张岳翀 , 张萌 , 柴发合 . 北京秋季大气挥发性有机物及相关污染物特征分析[J]. 中国科学院大学学报, 2014 , 31(3) : 329 -336 . DOI: 10.7523/j.issn.2095-6134.2014.03.006
Ninety-nine volatile organic compounds (VOCs) species were measured in autumn in Beijing. The average concentration of VOCs was 54.6 ppb. The average concentiations of NMHCs and oxygenated VOCs were 38.0 ppb and 10.04 ppb, respectively. The pollution status of VOCs was evaluated based on the diurnal variation and ratio between typical VOCs species(E/E and B/T). The air masses observed were characterized to photochemical-aged and supposed to be affected mainly by traffic emission sources. The same conclusion was reached by the co-analysis of air mass backward trajectory and B/T value at noon.
Key words： Beijing; autumn; VOCs; pollution level; source characteristics
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