| Seasonal variation of carbonaceous pollutants in PM2.5 at an urban ‘supersite’ in Shanghai, China | |
Fengwen Wang; Zhigang Guo; Tian Lin ; Neil L. Rose
| |
| 2016 | |
| 发表期刊 | Chemosphere
 |
| 卷号 | 146页码:238-244 |
| 摘要 | Multiple PM2.5 samples collected through different seasons from October 2011 to August 2012 at an urban site in Shanghai, China were analyzed for carbonaceous pollutants. Data from this site, a ‘super’ air quality monitoring station at Fudan University, has been used by researchers to investigate the formation mechanism of haze episodes. The characteristics and concentrations of organic carbon (OC), elemental carbon (EC), n-alkanes, as well as relative abundances of hopanes, in these samples were determined. The concentrations showed a pronounced annual cycle with higher values in cold seasons (spring and winter, mean: 8.6 μg/m3, 3.3 μg/m3and 136.4 ng/m3 for OC, EC and n-alkanes, respectively) and lower values in warm seasons (fall and summer, mean: 6.6 μg/m3, 2.6 μg/m3 and 73.8 ng/m3 for OC, EC and n-alkanes, respectively). EC generally displayed a common source with that of OC in all seasons. Petroleum residue was the major source of n-alkanes, contributing 71.4% to the targeted C14–C33 n-alkanes over four seasons. Principal components analysis and the composition of hopanes showed that emissions from vehicle exhaust contributed more carbonaceous aerosols than coal combustion. These data could provide important information for measures to reduce carbonaceous pollutant emissions and improve air quality in Shanghai, and other urban centers across China. |
| 关键词 | Seasonal Variation carbonaceous Pollutants pm2.5 shanghai |
| 收录类别 | SCI |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.gyig.ac.cn/handle/42920512-1/9617 |
| 专题 | 环境地球化学国家重点实验室 |
| 作者单位 | 1.State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400030, China 2.Department of Environmental Science, College of Resources and Environmental Science, Chongqing University, Chongqing 400030, China 3.Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Center for Atmospheric Chemistry Study, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China 4.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 5.Environmental Change Research Centre, University College London, Gower Street, London WC1E 6BT, United Kingdom |
| 推荐引用方式 GB/T 7714 | Fengwen Wang,Zhigang Guo,Tian Lin,等. Seasonal variation of carbonaceous pollutants in PM2.5 at an urban ‘supersite’ in Shanghai, China[J]. Chemosphere,2016,146:238-244. |
| APA | Fengwen Wang,Zhigang Guo,Tian Lin,&Neil L. Rose.(2016).Seasonal variation of carbonaceous pollutants in PM2.5 at an urban ‘supersite’ in Shanghai, China.Chemosphere,146,238-244. |
| MLA | Fengwen Wang,et al."Seasonal variation of carbonaceous pollutants in PM2.5 at an urban ‘supersite’ in Shanghai, China".Chemosphere 146(2016):238-244. |
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