Observational evidence of cloud processes contributing to daytime elevated nitrate in an urban atmosphere
文献类型：期刊论文
| 作者 | Zhang, Zhisheng4; Tao, Jun4; Tan, Haobo5; Zhang, Leiming6; Wu, Yunfei7; Sun, Jiaren4; Che, Huizheng1; Cao, Junji3; Cheng, Peng2; Chen, Laiguo4 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2018-08-01 |
| 卷号 | 186期号:8页码:209-215 |
| 关键词 | Nitrate Episode Aerosol Size Distribution Cloud Processed Aerosols Boundary-layer Mixing |
| DOI | 10.1016/j.atmosenv.2018.05.040 |
| 文献子类 | Article |
| 英文摘要 | Nitrate has become the most important hydrophilic chemical component in PM2.5 during serious air pollution periods in urban areas of the Pearl River Delta (PRD) region of south China, but there is a lack of fully understanding of its formation mechanisms and controlling factors, especially during daytime nitrate episodes. To fill the knowledge gap, water-soluble inorganic ions in PM2.5 and trace gases including SO2, HNO3, NH3, NOx and O-3, particle size distribution, vertical profile of aerosol backscatter density, and ground-level and vertical profiles of key meteorological variables were simultaneously measured at high time resolution in urban Guangzhou of the PRD. The remarkably enhanced nitrate mass concentrations observed at the surface-level during daytime were identified to be caused by strong boundary-layer turbulent mixing of residual aerosols produced from evaporation of low-level shallow stratocumulus clouds. This finding may have important implications on the sources of secondary inorganic aerosols in this and other similar cloudy regions. |
| WOS关键词 | SIZE DISTRIBUTIONS ; PARTICULATE NITRATE ; INORGANIC-IONS ; CHINA ; AEROSOLS ; PM2.5 ; SITE ; INVENTORY ; EMISSIONS ; GASES |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000436202500019 |
| 源URL | [http://ir.ieecas.cn/handle/361006/5103]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 作者单位 | 1.Chinese Acad Meteorol Sci, China Meteorol Adm, Inst Atmospher Composit, Beijing, Peoples R China 2.Jinan Univ, Inst Mass Spectrometer & Atmospher Environm, Guangzhou, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Shaanxi, Peoples R China 4.Minist Ecol & Environm, South China Inst Environm Sci, Guangzhou, Guangdong, Peoples R China 5.China Meteorol Adm, Inst Trop & Marine Meteorol, Key Lab Reg Numer Weather Predict, Guangzhou, Guangdong, Peoples R China 6.Environm & Climate Change Canada, Sci & Technol Branch, Air Qual Res Div, Toronto, ON, Canada 7.Chinese Acad Sci, Inst Atmospher Phys, RCE TEA, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Zhisheng,Tao, Jun,Tan, Haobo,et al. Observational evidence of cloud processes contributing to daytime elevated nitrate in an urban atmosphere[J]. ATMOSPHERIC ENVIRONMENT,2018,186(8):209-215. |
| APA | Zhang, Zhisheng.,Tao, Jun.,Tan, Haobo.,Zhang, Leiming.,Wu, Yunfei.,...&Zhang, Renjian.(2018).Observational evidence of cloud processes contributing to daytime elevated nitrate in an urban atmosphere.ATMOSPHERIC ENVIRONMENT,186(8),209-215. |
| MLA | Zhang, Zhisheng,et al."Observational evidence of cloud processes contributing to daytime elevated nitrate in an urban atmosphere".ATMOSPHERIC ENVIRONMENT 186.8(2018):209-215. |
入库方式： OAI收割
来源：地球环境研究所
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