引用本文:周炎,岳玎利,张涛.春季广州城区空气中VOCs来源解析[J].环境监控与预警,2017,9(1):42-47
ZHOU Yan,YUE Ding li,ZHANG Tao.Source Apportionment of Spring Ambient Volatile Organic Compounds in Guangzhou[J].Environmental Monitoring and Forewarning,2017,9(1):42-47
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春季广州城区空气中VOCs来源解析
周炎,岳玎利,张涛
广东省环境监测中心, 国家环境保护区域空气质量监测重点实验室, 广东 广州 510308
摘要:
2013年4月在广州市区对大气中挥发性有机化合物(VOCs)进行了观测,对其变化特征和来源进行了分析。结果表明,观测期间测得的VOC总平均混合比为41.35×10-9,表现为烷烃>芳香烃>烯烃>炔烃;利用PMF解析出观测时段内影响广州市区的9个VOCs主要来源,各源占比情况依次为:LPG排放>老化VOC>汽油挥发>石化、未知源>汽油车排放>油漆溶剂>柴油车排放>天然源;与机动车相关和工业相关的来源分别占到了大气VOCs的46.8%和21.0%。
关键词:  挥发性有机物  来源解析  正交矩阵因子分析法  广州
DOI:
分类号:X511
文献标识码:B
基金项目:科技支撑基金资助项目(2014BAC21B01);珠江科技新星专项基金资助项目(2015-06-151009)
Source Apportionment of Spring Ambient Volatile Organic Compounds in Guangzhou
ZHOU Yan,YUE Dingli,ZHANG Tao
Guangdong Environmental Monitoring Center, State Environmental Protection Key Laboratory of Regional Air Quality Monitoring, Guangzhou, Guangdong 510308, China
Abstract:
Atmospheric VOCs were measured at Guangzhou in April 2013. The variation pattern and emission sources were analyzed. The average concentration of total VOCs observed was 41.3×10-9, which showed a descending order of alkane>aromatic hydrocarbon>alkene>alkyne. Source analysis of VOCs by PMF showed that the LPG emission>aged VOC>gasoline vapor>petrochemical industry, unknown source emission>gasoline vehicle emission>solvent use source>diesel vehicle emission>biogenic emission. The sources related to vehicle emission and industrial activities accounted for 46.8% and 21.0% of total VOCs respectively, it showed control measures to vehicle and industry should be strengthened.
Key words:  VOCs  Source apportionment  PMF  Guangzhou