Evolution of aerosol chemistry in Beijing under strong influence of anthropogenic pollutants: Composition, sources, and secondary formation of fine particulate nitrated aromatic compounds
文献类型：期刊论文
| 作者 | Ren, Yanqin2; Wei, Jie3; Wang, Gehui1,4; Wu, Zhenhai2; Ji, Yuanyuan2; Li, Hong2 |
| 刊名 | ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 204页码:8 |
| 关键词 | Fine particle matter Nitrated aromatic compounds Sources NOx Secondary formation |
| ISSN号 | 0013-9351 |
| DOI | 10.1016/j.envres.2021.111982 |
| 通讯作者 | Ren, Yanqin(renyq@craes.org.cn) ; Li, Hong(lihong@craes.org.cn) |
| 英文摘要 | Nitrated aromatic compounds (NACs) constitute a key segment of brown carbon (BrC), thereby contributing to the light-absorbing characteristics of aerosols in the atmosphere. However, until recently, there is a scarcity of research on their generation in the urban environment. The current study is based upon an extensive field study of NACs from fine particle samples obtained at an urban location in Beijing in the spring and summer of 2017, which was characterized by both high anthropogenic volatile organic compounds (VOCs) and high-NOx dominated conditions. The mean total concentration of the nine NACs was 8.58 ng m- 3 in spring and 8.54 ng m- 3 in summer. In the spring, the most abundant NACs were 4-nitrophenol (33.7%) and 4-nitrocatechol (19.3%), while in the summer, the most abundant NACs were 4-nitroguaiacol (34.9%) and 2, 4-dinitrophenol (23%). Atmospheric NACs were primarily produced from coal combustion (52%) and biomass burning (32%) in spring, and originated from the secondary formation (37%) and traffic (35%) in summer. NO2 could promote the formation of NACs with a significant effect on their compositions, especially for nitrophenols and nitrocatechols. It can also affect the formation of nitrated aerosols and their existing form. Inorganic nitrates were increased to conversion in the daytime when NO2 concentrations were higher than 30 ppb, but the corresponding oxidation products shifted to primarily organic ones at night. The transition was VOC-sensitive regimes for NAC formation, and nitration of toluene was a more important pathway during the campaign in Beijing. |
| WOS关键词 | ATMOSPHERIC BROWN CARBON ; LIGHT-ABSORPTION ; NITROAROMATIC COMPOUNDS ; LIQUID-CHROMATOGRAPHY ; CHEMICAL-COMPOSITIONS ; ORGANIC-COMPOUNDS ; INLAND CHINA ; BLACK CARBON ; PHENOLS ; URBAN |
| 资助项目 | National Natural Science Foundation of China[41907197] ; Fundamental Research Funds for Central Public Welfare Scientific Research Institutes of China, Chinese Research Academy of Environmental Sciences[2019YSKY-018] ; National Key Research and Development Program of China[2017YFC0212703] |
| WOS研究方向 | Environmental Sciences & Ecology ; Public, Environmental & Occupational Health |
| 语种 | 英语 |
| WOS记录号 | WOS:000704954800003 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for Central Public Welfare Scientific Research Institutes of China, Chinese Research Academy of Environmental Sciences ; National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/166923]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Ren, Yanqin; Li, Hong |
| 作者单位 | 1.East China Normal Univ, Sch Geog Sci, Key Lab Geog Informat Sci, Minist Educ China, Shanghai 200142, Peoples R China 2.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Inst Ecochongming, 3663 N Zhongshan Rd, Shanghai 200062, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Yanqin,Wei, Jie,Wang, Gehui,et al. Evolution of aerosol chemistry in Beijing under strong influence of anthropogenic pollutants: Composition, sources, and secondary formation of fine particulate nitrated aromatic compounds[J]. ENVIRONMENTAL RESEARCH,2022,204:8. |
| APA | Ren, Yanqin,Wei, Jie,Wang, Gehui,Wu, Zhenhai,Ji, Yuanyuan,&Li, Hong.(2022).Evolution of aerosol chemistry in Beijing under strong influence of anthropogenic pollutants: Composition, sources, and secondary formation of fine particulate nitrated aromatic compounds.ENVIRONMENTAL RESEARCH,204,8. |
| MLA | Ren, Yanqin,et al."Evolution of aerosol chemistry in Beijing under strong influence of anthropogenic pollutants: Composition, sources, and secondary formation of fine particulate nitrated aromatic compounds".ENVIRONMENTAL RESEARCH 204(2022):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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