Chemical source profiles of urban fugitive dust PM2.5 samples from 21 cities across China
文献类型：期刊论文
| 作者 | Sun, Jian1,6; Shen, Zhenxing1,6; Zhang, Leiming5; Lei, Yali6; Gong, Xuesong6; Zhang, Qian6; Zhang, Tian6; Xu, Hongmei6; Cui, Song4; Wang, Qiyuan1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 649页码:1045-1053 |
| 关键词 | Urban fugitive dust Chemical profiles Source identification |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2018.08.374 |
| 通讯作者 | Shen, Zhenxing(zxshen@mail.xjtu.edu.cn) |
| 英文摘要 | Urban fugitive (road and construction) dust PM2.5 samples were collected in 21 cities of seven regions in China. Seven water-soluble ions, eight sub-fractions of carbonaceous components, and 19 elements were determined to investigate the chemical profiles of urban fugitive dust. Among the analyzed chemical compositions and on regional average, the elemental compositions showed the highest proportion (12.5-28.9% in road dust (RD) and 13.1-38.0% in construction dust (CD)), followed by water-soluble ions (5.1-19.0% in RD and 42-16.4% in CD) and carbonaceous fractions (5.4-9.6% in RD and 4.9-9.3% in CD). Chemical compositions measured in CD were all slightly lower than those in RD although statistically insignificant (p > 0.05). Soil dust, which was estimated from Fe concentration, was proved to be the biggest contributor to urban fugitive dust PM2.5 mass. While, it showed a higher contribution in Northern China (71.5%) than in Southern China (52.1%). Higher enrichment factors were found for elemental S. Zn and Pb in RD than CD, reflecting stronger anthropogenic sources (i.e. vehicle exhaust) in RD. Low NO3-/SO42- and high SO42-/K+ ratios both indicated that fugitive dust was strongly influenced by stationary sources (e.g. coal combustion), and this influence was especially strong in Northern China. Coefficients of divergence proved that dust profiles within the same region were more similar than across regions, reflecting that urban fugitive dust was influenced more by local sources than long-range transport. (C) 2018 Elsevier B.V. All rights reserved. |
| WOS关键词 | FINE PARTICULATE MATTER ; SAN-JOAQUIN VALLEY ; SOURCE APPORTIONMENT ; ACE-ASIA ; NORTHERN CHINA ; ION CHEMISTRY ; LOESS PLATEAU ; HONG-KONG ; AEROSOL ; PM10 |
| 资助项目 | Chinese Ministry of Science and Technology[2013FY112700] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS[SKLLQG1616] ; Fundamental Research Funds for Central Universities of China[xkjc2015002] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000446076500099 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Chinese Ministry of Science and Technology ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS ; Fundamental Research Funds for Central Universities of China |
| 源URL | [http://ir.ieecas.cn/handle/361006/14690]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 通讯作者 | Shen, Zhenxing |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710049, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Res Temperate East A, Beijing 100029, Peoples R China 3.Minist Environm Protect, South China Inst Environm Sci, Guangzhou, Guangdong, Peoples R China 4.Northeast Agr Univ, Sch Water Conservancy & Civil Engn, Int Joint Res Ctr Persistent Tox Pollutants, Harbin 150030, Heilongjiang, Peoples R China 5.Environm & Climate Change Canada, Sci & Technol Branch, Air Qual Res Div, Toronto, ON, Canada 6.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jian,Shen, Zhenxing,Zhang, Leiming,et al. Chemical source profiles of urban fugitive dust PM2.5 samples from 21 cities across China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,649:1045-1053. |
| APA | Sun, Jian.,Shen, Zhenxing.,Zhang, Leiming.,Lei, Yali.,Gong, Xuesong.,...&Zhang, Renjian.(2019).Chemical source profiles of urban fugitive dust PM2.5 samples from 21 cities across China.SCIENCE OF THE TOTAL ENVIRONMENT,649,1045-1053. |
| MLA | Sun, Jian,et al."Chemical source profiles of urban fugitive dust PM2.5 samples from 21 cities across China".SCIENCE OF THE TOTAL ENVIRONMENT 649(2019):1045-1053. |
入库方式： OAI收割
来源：地球环境研究所
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