| 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） |
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| Source Apportionment of Spring Ambient Volatile Organic Compounds in Guangzhou |
|
ZHOU Yan，YUE Dingli，ZHANG Tao
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Guangdong Environmental Monitoring Center， State Environmental Protection Key Laboratory of Regional Air Quality Monitoring， Guangzhou， Guangdong 510308， China
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| 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 |
