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DOI | 10.1016/j.atmosres.2017.07.003 |
Aerosol optical properties observation and its relationship to meteorological conditions and emission during the Chinese National Day and Spring Festival holiday in Beijing | |
Zheng, Yu1,2; Che, Huizheng1; Zhao, Tianliang2; Zhao, Hujia1; Gui, Ke1; Sun, Tianze1; An, Linchang3; Yu, Jie1,4; Liu, Chong5; Jiang, Yongcheng6; Zhang, Lei2; Wang, Hong1; Wang, Yaqiang1; Zhang, Xiaoye1 | |
2017-11-15 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 197 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The reduction of traffic flow in downtown areas during the Chinese National Day holiday and the fireworks during the Spring Festival provide a unique opportunity for investigating the impact of urban anthropogenic activities on aerosol optical properties during these important Chinese festivals in Beijing. The National Day in 2014 and 2015 and Spring Festival in 2015 and 2016 were selected as study periods. The aerosol optical depth (AOD) at 440 nm increased over the all holiday periods and the average AODs during the 2015 National Day, 2015 Spring Festival and 2016 Spring Festival were about 81%, 21% and 36% higher than the background levels, respectively. The average AOD in 2014 National Day holiday was lower than background level partly influenced by precipitation event. The absorption AOD (AAOD) at 440 nm showed consistent variations with the AOD and the average AAODs during the 2015 National Day, 2015 Spring Festival and 2016 Spring Festival holidays were about 75%, 19% and 23% higher than the background level, respectively. The mean values of single scattering albedo were greater than the background level during the Spring Festival holidays, whereas the values during the National Day holiday in 2015 were lower partly due to the reduction of vehicular emissions in downtown areas. Fine- and coarse-mode particle volumes during pollution periods in holidays were similar to 0.04-0.25 mu m(3) and similar to 0.03-0.15 mu m(3) larger than background level, respectively. The results of potential source contribution function and concentration-weighted trajectory analyses identified the areas south of Beijing as the main source regions of PM2.5 and were responsible for the extremely high PM2.5 concentrations in Beijing during the holiday periods. The findings of this study may aid understanding the effects of human activities on aerosol optical properties over Beijing area and contribute to improving regional air quality. |
英文关键词 | Aerosol optical properties Anthropogenic activities Chinese National Day Spring Festival Beijing |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000412250700015 |
WOS关键词 | LONG-RANGE TRANSPORT ; NORTH CHINA ; AIR-POLLUTION ; HEAVY HAZE ; ATMOSPHERIC POLLUTANTS ; PARTICULATE ; VARIABILITY ; AREA ; ABSORPTION ; SATELLITE |
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/38319 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Meteorol Sci CMA, Inst Atmospher Composit, State Key Lab Severe Weather LASW, Beijing 100081, Peoples R China; 2.Nanjing Univ Informat Sci & Technol, China Meteorol Adm,Minist Educ,Key Lab Meteorol D, Key Lab Aerosol Cloud Precipitat,Joint Int Res La, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Jiangsu, Peoples R China; 3.CMA, Natl Meteorol Ctr, Beijing 100081, Peoples R China; 4.Inst Meteorol Sci Jilin Prov, Changchun 130062, Jilin, Peoples R China; 5.Nanjing Univ, Sch Atmospher Sci, Nanjing 210093, Jiangsu, Peoples R China; 6.Xiamen Meteorol Bur, Lab Strait Meteorol, Xiamen 361012, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng, Yu,Che, Huizheng,Zhao, Tianliang,et al. Aerosol optical properties observation and its relationship to meteorological conditions and emission during the Chinese National Day and Spring Festival holiday in Beijing[J]. ATMOSPHERIC RESEARCH,2017,197. |
APA | Zheng, Yu.,Che, Huizheng.,Zhao, Tianliang.,Zhao, Hujia.,Gui, Ke.,...&Zhang, Xiaoye.(2017).Aerosol optical properties observation and its relationship to meteorological conditions and emission during the Chinese National Day and Spring Festival holiday in Beijing.ATMOSPHERIC RESEARCH,197. |
MLA | Zheng, Yu,et al."Aerosol optical properties observation and its relationship to meteorological conditions and emission during the Chinese National Day and Spring Festival holiday in Beijing".ATMOSPHERIC RESEARCH 197(2017). |
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