文献类型：期刊文献

英文题名：Chlorine levels and species in fine and size resolved atmospheric particles by X-ray absorption near-edge structure spectroscopy analysis in Beijing, China

作者：Ouyang, Jie[1,2];Yang, Guo-Sheng[3];Ma, Ling-Ling[1];Luo, Min[1];Zheng, Lei[4];Huo, Qing[5];Zhao, Yi-Dong[4];Hu, Tian-Dou[4];Cai, Zhen-Feng[6];Xu, Dian-Dou[1]

第一作者：Ouyang, Jie

通讯作者：Ma, LL[1];Xu, DD[1]

机构：[1]Chinese Acad Sci, Beijing Engn Res Ctr Radiog Techn & Equipment, Inst High Energy Physids, Beijing 100049, Peoples R China;[2]Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China;[3]Hirosaki Univ, Inst Radiat Emergency Med, Dept Radiat Chem, 66-1 Hon Cho, Hirosaki, Aomori 0368564, Japan;[4]Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China;[5]Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China;[6]Beijing North Energy Conservat & Environm Protect, Beijing 100070, Peoples R China

第一机构：Chinese Acad Sci, Beijing Engn Res Ctr Radiog Techn & Equipment, Inst High Energy Physids, Beijing 100049, Peoples R China

通讯机构：[1]corresponding author), Chinese Acad Sci, Beijing Engn Res Ctr Radiog Techn & Equipment, Inst High Energy Physids, Beijing 100049, Peoples R China.

年份：2018

卷号：196

起止页码：393-401

外文期刊名：CHEMOSPHERE

收录：;EI(收录号：20180204629532);Scopus(收录号：2-s2.0-85040079399);WOS:【SCI-EXPANDED(收录号:WOS:000425075500046)】；

基金：We thank the financial supports from National Natural Science Foundation of China (Grant Nos. 11375212, 11435002, 21407149, 11575210, 91643206), Innovation Funding of Institute of High Energy Physics (Y7545110U2) and Key Deployment Projects, Chinese Academy of Sciences (ZDRW-CN-2018-1).

语种：英文

外文关键词：Chlorine species; Fine atmospheric particles; X-ray absorption near edge structure; (XANES) spectroscopy; Size distribution; Beijing

摘要：An understanding of the species of chlorine is crucial in the metropolis-Beijing, which is suffering serious haze pollution with high frequency. Particulate Matters (PMs) with five different sizes were collected in Beijing from July 2009 to March 2016, and characterized non-destructively by X-ray absorption near edge structure spectroscopy. PM<0.2, PM0.2-0.5 and PM>2.5 contributed for the major PMs mass in spring and summer, PM0.5-1.0 and PM1.0-25 contributed for the major PMs mass in autumn and winter. The concentrations of the three chlorine species were in the order of inorganic chlorine (Cl-inorg) > aliphatic chlorine (Cl-ali) > aromatic chlorine (Cl-aro), indicating that Cl-inorg constituted the primary chlorine fraction and less toxic Cl-ali constituted the primary total organic chlorine (Cl-ali + Cl-aro, abbreviated as Cl-org) in the PMs in Beijing. In addition, these three chlorine species exhibited identical seasonal variation in PM2.5: winter > autumn> spring > summer. Wet precipitation is an important factor to result in the lower mass concentrations of these three chlorine species in summer. The temporal variations of both size resolved PM mass concentrations and chlorine species concentrations suggested that the air pollution prevention and control in Beijing has just won initial success. (C) 2017 Elsevier Ltd. All rights reserved.