Metallic elements and Pb isotopes in PM(2.5)in three Chinese typical megacities: spatial distribution and source apportionment
文献类型：期刊论文
| 作者 | Xu, H. M.1,2,3; He, K. L.1; Feng, R.1; Shen, Z. X.1; Cao, J. J.2; Liu, S. X.2; Ho, K. F.4; Huang, R-J2; Guinot, B.3; Wang, Q. Y.2 |
| 刊名 | ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
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| 出版日期 | 2020-08-01 |
| 卷号 | 22期号:8页码:1718-1730 |
| ISSN号 | 2050-7887 |
| DOI | 10.1039/d0em00174k |
| 通讯作者 | Xu, H. M.(xuhongmei@xjtu.edu.cn) ; Cao, J. J.(cao@loess.llqg.ac.cn) |
| 英文摘要 | Heavy metal pollution in fine particulate matter (PM2.5) is a serious environmental and health concern in China, particularly during winter. Here, we detected 40 elements in 24 h integrated daily PM(2.5)samples collected in January 2014 from three typical Chinese metropolises (Beijing, Changchun, and Chengdu) to reflect elemental spatial variations, local sources, and regional transport. The measured elemental concentrations in Changchun were 11.1% and 48.4% higher than those in Beijing and Chengdu, respectively. Thus, PM(2.5)from Changchun exhibited high levels and diversity in the elemental profile (characterized by high concentrations of industrial emission elemental markers). The results of elemental ratios and Pb isotopes proved that, except for a coal combustion source, vehicular emissions contributed more to PM(2.5)heavy metals in Beijing than in the other two cities; Changchun PM(2.5)elements received large contributions from industrial sources, including iron and steel manufacturing, and automobile industry. Moreover, crustal dust from long-range transport of regional air masses from the northwest regions of China played a crucial role in determining elemental levels in Beijing and Changchun, accounting for more than 50% of source intensity. However, a specific dominant source was not determined in Chengdu; the contribution of anthropogenic dust, mainly from construction activities, needs to be paid attention in Chengdu eastern area. This study contributed to enhancing our understanding of elemental spatial distribution characteristics and sources and to setting more judicious standards and strategies for PM(2.5)bound heavy metals in China. |
| WOS关键词 | FINE PARTICULATE MATTER ; LONG-RANGE TRANSPORT ; TRACE-ELEMENTS ; CHEMICAL-COMPOSITION ; REGIONAL TRANSPORT ; HEAVY-METALS ; HEALTH-RISK ; LEAD POLLUTION ; HAZE EPISODES ; QINGHAI LAKE |
| 资助项目 | National Natural Science Foundation of China[41877376] ; National Natural Science Foundation of China[41771220] ; Fundamental Research Funds for the Central Universities[xjj2018248] ; Key Research and Development Program of Shaanxi Province[2018-ZDXM3-01] ; Natural Science Basic Research Plan in Shaanxi Province of the ChinaKey Project[2019JZ-36] |
| WOS研究方向 | Chemistry ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000560533900009 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Key Research and Development Program of Shaanxi Province ; Natural Science Basic Research Plan in Shaanxi Province of the ChinaKey Project |
| 源URL | [http://ir.ieecas.cn/handle/361006/15197]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 通讯作者 | Xu, H. M.; Cao, J. J. |
| 作者单位 | 1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian, Peoples R China 3.Univ Toulouse 3, UPS, CNRS, Lab Aerol, Toulouse, France 4.Chinese Univ Hong Kong, JC Sch Publ Hlth & Primary Care, Hong Kong, Peoples R China 5.Shaanxi Normal Univ, Sch Geog & Tourism, Xian, Peoples R China 6.Baoji Univ Arts & Sci, Coll Geog & Environm, Shaanxi Key Lab Disaster Monitoring & Mech Simula, Baoji, Peoples R China 7.Univ Toulouse, Lab Geosci Environm Toulouse, Observ Midipyrenees, CNRS,IRD, Toulouse, France |
| 推荐引用方式 GB/T 7714 | Xu, H. M.,He, K. L.,Feng, R.,et al. Metallic elements and Pb isotopes in PM(2.5)in three Chinese typical megacities: spatial distribution and source apportionment[J]. ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,2020,22(8):1718-1730. |
| APA | Xu, H. M..,He, K. L..,Feng, R..,Shen, Z. X..,Cao, J. J..,...&Sonke, J. E..(2020).Metallic elements and Pb isotopes in PM(2.5)in three Chinese typical megacities: spatial distribution and source apportionment.ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,22(8),1718-1730. |
| MLA | Xu, H. M.,et al."Metallic elements and Pb isotopes in PM(2.5)in three Chinese typical megacities: spatial distribution and source apportionment".ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS 22.8(2020):1718-1730. |
入库方式： OAI收割
来源：地球环境研究所
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