Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2018.01.002 |
Characteristics of individual particles in Beijing before, during and after the 2014 APEC meeting | |
Xu, Zhongjun1; Shan, Wei1; Qi, Tao1; Gao, Jian2 | |
2018-05-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 203页码:254-260 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | To understand the characteristics of individual aerosol particles as well as the effects of emission control measures on the air quality in Beijing before, during and after the 2014 APEC meeting, aerosol samples collected in Beijing from Oct. 8 to Nov. 24 were investigated by a scanning electron microscopy (SEM) coupled with an energy-dispersive X-ray (EDX). Individual particles were classified into fly ash, ammonium sulfate, carbonaceous particle, tar ball, soot aggregates, Fe/Ti oxide, Ca/Mg carbonate, calcium sulfate and aluminosilicates/quartz. The results showed that PM0.5-1.0 was predominant in aerosol particles while PM2.5-10 was the fewest in aerosol particles. Soot aggregates and carbonaceous particles mainly located in the size range of 0.5-2.5 mu m and mineral particles were dominant in the size range of 2.5-10 mu m. The tough emission control measures taken by the local government greatly improved the air quality. Reducing vehicles on the roads substantially decreased the amount of soot aggregates, and restricting coal combustion decreased the amount of tar ball during the APEC meeting. The concentrations of carbonaceous and mineral particles abated probably owing to the control on VOCs emission, and water spray and demolition layoff, respectively, during the APEC meeting. |
英文关键词 | Individual particles SEM-EDX Emission control APEC Beijing |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426226400022 |
WOS关键词 | CHEMICAL-COMPOSITION ; EMISSION CONTROL ; ELECTRON-MICROSCOPY ; AEROSOL-PARTICLES ; SIZE DISTRIBUTION ; AIR-POLLUTION ; MIXING STATE ; CHINA ; MORPHOLOGY ; BLUE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/38416 |
专题 | 地球科学 |
作者单位 | 1.Beijing Univ Chem Technol, Dept Environm Sci & Engn, Beijing 100029, Peoples R China; 2.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Zhongjun,Shan, Wei,Qi, Tao,et al. Characteristics of individual particles in Beijing before, during and after the 2014 APEC meeting[J]. ATMOSPHERIC RESEARCH,2018,203:254-260. |
APA | Xu, Zhongjun,Shan, Wei,Qi, Tao,&Gao, Jian.(2018).Characteristics of individual particles in Beijing before, during and after the 2014 APEC meeting.ATMOSPHERIC RESEARCH,203,254-260. |
MLA | Xu, Zhongjun,et al."Characteristics of individual particles in Beijing before, during and after the 2014 APEC meeting".ATMOSPHERIC RESEARCH 203(2018):254-260. |
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