The isotopic patterns and source apportionment of nitrate and ammonium in atmospheric aerosol
文献类型：期刊论文
| 作者 | Dong, Xinyuan2,3; Guo, Qingjun1,2; Han, Xiaokun4; Wei, Rongfei2; Tao, Zhenghua2,3 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2022-01-10 |
| 卷号 | 803页码:12 |
| ISSN号 | 0048-9697 |
| 关键词 | Isotopes Inorganic nitrogen Source apportionment Formation processes Regional migration Meteorological conditions |
| DOI | 10.1016/j.scitotenv.2021.149559 |
| 通讯作者 | Guo, Qingjun(guoqj@igsnrr.ac.cn) |
| 英文摘要 | Nitrate (NO3-) and ammonium (NH4+) are the major components in inorganic aerosol. However, their sources and formation processes remain unclear. This study conducted a year-round field measurement of TSP, PM2.5 and PM1.0 in five different sites in the Beijing-Tianjin-Hebei (BTH) region to determine the concentrations of water-soluble inorganic ions (WSIIs) and the isotopic compositions of inorganic nitrogen (delta N-15-NH4+, delta N-15-NO3-, and delta O-18-NO3-). The results showed the highest concentration of WSIIs in winter and lowest in summer. delta N-15-NO3-, delta O-18-NO3-, and delta N-15-NH4+ were in the range of -6.1-18.2, 52.2-103.8, and-28.7-36.2 parts per thousand, respectively. The seasonal variations of delta N-15-NO3- and delta N-15-NH4+ were an indication of relative contributions of the main sources and effects of meteorological conditions. The source apportionment identified fossil fuel combustion (38.2-50.6%), agricultural emissions (18-24.7%), biomass burning (16.3-22.7%), and road dust/soil (8.7-23.4%) were the main sources of inorganic aerosols. The local sources and regional migration contributed to the level of inorganic aerosol pollution. In winter, the aerosol in the BTH region was affected by the air mass from the northwest. While in spring and summer, the air mass was mainly from the South China. The low temperature and high relative humidity favored to the formation of inorganic nitrogen aerosol, and solar radiation affected the formation processes of inorganic aerosols by changing the oxidation pathway of NO3- and accelerating the volatilization and dissociation of ammonium nitrate (NH4NO3). This study discovered the main source contributions of inorganic nitrogen aerosol using N and O isotopes composition, and the obtained information has a great importance in understanding the effects of meteorological conditions on formation and the contribution of regional transport. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | SECONDARY FORMATION ; AIR-QUALITY ; NOX SOURCES ; NITROGEN ; OXYGEN ; PM2.5 ; POLLUTION ; CHINA ; EMISSIONS ; CHEMISTRY |
| 资助项目 | National Key Research and Development Program of China[2017YFC0212703] ; National Natural Science Foundation of China[41625006] ; National Natural Science Foundation of China[41761144066] ; National Natural Science Foundation of China[41561144005] ; National Natural Science Foundation of China[41890824] ; National Natural Science Foundation of China[41890822] ; Cross-Team and Key Laboratory Cooperative Research Special Project of Cross-Team and Key Laboratory Cooperative Research Special Project of Chinese Academy of Sciences (CAS Light of West China Program) |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000702878600006 |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Cross-Team and Key Laboratory Cooperative Research Special Project of Cross-Team and Key Laboratory Cooperative Research Special Project of Chinese Academy of Sciences (CAS Light of West China Program) |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/166914]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Guo, Qingjun |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Tianjin Univ, Sch Earth Syst Sci, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Xinyuan,Guo, Qingjun,Han, Xiaokun,et al. The isotopic patterns and source apportionment of nitrate and ammonium in atmospheric aerosol[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,803:12. |
| APA | Dong, Xinyuan,Guo, Qingjun,Han, Xiaokun,Wei, Rongfei,&Tao, Zhenghua.(2022).The isotopic patterns and source apportionment of nitrate and ammonium in atmospheric aerosol.SCIENCE OF THE TOTAL ENVIRONMENT,803,12. |
| MLA | Dong, Xinyuan,et al."The isotopic patterns and source apportionment of nitrate and ammonium in atmospheric aerosol".SCIENCE OF THE TOTAL ENVIRONMENT 803(2022):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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