Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-9103-2017 |
Differentiating local and regional sources of Chinese urban air pollution based on the effect of the Spring Festival | |
Wang, Chuan; Huang, Xiao-Feng; Zhu, Qiao; Cao, Li-Ming; Zhang, Bin; He, Ling-Yan | |
2017-07-27 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:14 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The emission of pollutants is extremely reduced during the annual Chinese Spring Festival (SF) in Shenzhen, China. During the SF, traffic flow drops by similar to 50% and the industrial plants are almost entirely shut down in Shenzhen. To characterize the variation in ambient air pollutants due to the "Spring Festival effect", various gaseous and particulate pollutants were measured in real time in urban Shenzhen over three consecutive winters (2014-2016). The results indicate that the concentrations of NOx, volatile organic compounds (VOCs), black carbon (BC), primary organic aerosols, chloride, and nitrate in submicron aerosols decrease by 50-80% during SF periods relative to non-Spring Festival periods, regardless of meteorological conditions. This decrease suggests that these pollutants are mostly emitted or secondarily formed from urban local emissions. The concentration variation in species mostly from regional or natural sources, however, is found to be much less, such as for bulk fine particulate matter (PM2.5). More detailed analysis of the Spring Festival effect reveals an urgent need to reduce emissions of SO2 and VOCs on a regional scale rather than on an urban scale to reduce urban PM2.5 in Shenzhen, which can also be useful as a reference for other megacities in China. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000406389300004 |
WOS关键词 | PEARL RIVER-DELTA ; VOLATILE ORGANIC-COMPOUNDS ; NONMETHANE HYDROCARBONS NMHCS ; FINE PARTICULATE MATTER ; CHEMICAL-COMPOSITION ; SOURCE APPORTIONMENT ; SUBMICRON AEROSOLS ; MIXING STATE ; BLACK CARBON ; PRD REGION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30380 |
专题 | 地球科学 |
作者单位 | Peking Univ, Shenzhen Grad Sch, Key Lab Urban Habitat Environm Sci & Technol, Sch Environm & Energy, Shenzhen 518055, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Chuan,Huang, Xiao-Feng,Zhu, Qiao,et al. Differentiating local and regional sources of Chinese urban air pollution based on the effect of the Spring Festival[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(14). |
APA | Wang, Chuan,Huang, Xiao-Feng,Zhu, Qiao,Cao, Li-Ming,Zhang, Bin,&He, Ling-Yan.(2017).Differentiating local and regional sources of Chinese urban air pollution based on the effect of the Spring Festival.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(14). |
MLA | Wang, Chuan,et al."Differentiating local and regional sources of Chinese urban air pollution based on the effect of the Spring Festival".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.14(2017). |
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