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| DOI | 10.5194/acp-20-15101-2020 |
| Surface-atmosphere fluxes of volatile organic compounds in Beijing | |
| Acton W.J.F.; Huang Z.; Davison B.; Drysdale W.S.; Fu P.; Hollaway M.; Langford B.; Lee J.; Liu Y.; Metzger S.; Mullinger N.; Nemitz E.; Reeves C.E.; Squires F.A.; Vaughan A.R.; Wang X.; Wang Z.; Wild O.; Zhang Q.; Zhang Y.; Nicholas Hewitt C. | |
| 发表日期 | 2020 |
| ISSN | 1680-7316 |
| 起始页码 | 15101 |
| 结束页码 | 15125 |
| 卷号 | 20期号:23 |
| 英文摘要 | Mixing ratios of volatile organic compounds (VOCs) were recorded in two field campaigns in central Beijing as part of the Air Pollution and Human Health in a Chinese Megacity (APHH) project. These data were used to calculate, for the first time in Beijing, the surface-atmosphere fluxes of VOCs using eddy covariance, giving a top-down estimation of VOC emissions from a central area of the city. The results were then used to evaluate the accuracy of the Multi-resolution Emission Inventory for China (MEIC). The APHH winter and summer campaigns took place in November and December 2016 and May and June 2017, respectively. The largest VOC fluxes observed were of small oxygenated compounds such as methanol, ethanol + formic acid and acetaldehyde, with average emission rates of 8.31±8.5, 3.97±3.9 and 1.83±2.0nmolm-2s-1, respectively, in the summer. A large flux of isoprene was observed in the summer, with an average emission rate of 5.31±7.7nmolm-2s-1. While oxygenated VOCs made up 60% of the molar VOC flux measured, when fluxes were scaled by ozone formation potential and peroxyacyl nitrate (PAN) formation potential the high reactivity of isoprene and monoterpenes meant that these species represented 30% and 28% of the flux contribution to ozone and PAN formation potential, respectively. Comparison of measured fluxes with the emission inventory showed that the inventory failed to capture the magnitude of VOC emissions at the local scale. © Author(s) 2020 |
| 语种 | 英语 |
| scopus关键词 | air quality; atmospheric pollution; carbon emission; chemical composition; emission inventory; pollution monitoring; surface temperature; trace element; volatile organic compound; Beijing [China]; China |
| 来源期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/247300 |
| 作者单位 | Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, United Kingdom; State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; Department of Chemistry, Wolfson Atmospheric Chemistry Laboratories, University of York, York, YO10 5DD, United Kingdom; National Centre for Atmospheric Science, University of York, York, YO10 5DD, United Kingdom; Chinese Academy of Sciences, Institute of Atmospheric Physics, Huayanli 40, Chaoyang District, Beijing, 100029, China; Uk Centre for Ecology and Hydrology, Library Ave, Bailrigg, Lancaster, LA1 4AP, United Kingdom; Uk Centre for Ecology and Hydrology, Bush Estate, Penicuik, Midlothian, EH26 0QB, United Kingdom; Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia, Norwich, Norfolk, NR4 7TJ, United Kingdom; Peking University, 5 Yiheyuan Road, Haid... |
| 推荐引用方式 GB/T 7714 | Acton W.J.F.,Huang Z.,Davison B.,et al. Surface-atmosphere fluxes of volatile organic compounds in Beijing[J],2020,20(23). |
| APA | Acton W.J.F..,Huang Z..,Davison B..,Drysdale W.S..,Fu P..,...&Nicholas Hewitt C..(2020).Surface-atmosphere fluxes of volatile organic compounds in Beijing.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(23). |
| MLA | Acton W.J.F.,et al."Surface-atmosphere fluxes of volatile organic compounds in Beijing".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.23(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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