Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2016.12.004 |
Characterization of chemical compositions in size-segregated atmospheric particles during severe haze episodes in three mega-cities of China | |
Wang, Jiao1; Zhang, Jin-sheng1; Liu, Ze-jun1; Wu, Jian-hui1; Zhang, Yu-fen1; Han, Su-qin2; Zheng, Xian-jue3; Zhou, Lai-dong4; Feng, Yin-chang1; Zhu, Tan1 | |
2017-05-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 187 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | To investigate the characterization of chemical compositions in size-segregated particles during severe haze pollution episodes in different regions of China, a campaign was conducted in Tianjin, Hangzhou and Chengdu. Size segregated particles were collected with eight-stage Anderson cascade impactor in these cities in winter respectively. Ten major compositions of particles including (Na+, NH4+, K+, Mg2+, Ca2+, Cl-, NO3-, SO42-, OC and EC) were analyzed. A similar bimodal distribution of particles was found between northern and southern cities peaked at 0.7-2.1 and 9.0-10.0 mu m. OC, EC, SO42-, NO3-, Cl- and NH4+ were the major chemical compositions of fine-mode particles, whereas OC, EC, SO42-, NO3- and Ca2+ were the major compositions of coarse-mode particles. In the three cities, Cl-, SO42-, NO3-, NH4+ and K+ of all compositions were unimodal distributions peaked at 0.7-2.1 mu m. Different sources to particles in the three cities were inferred based on the size distribution characteristics of chemical compositions. For Tianjin, the influence of sea salt was greater to Hangzhou and Chengdu based on the concentrations and distributions of Na+ and the Cl-. Fine-mode Cl(-)and SO42- were highest in Tianjin, meaning the greater contribution of coal burning to particles during severe pollution. For Hangzhou, the NO concentration was higher than Tianjin and Chengdu. Contribution of nitrate to PM was higher than that of sulfate. For Chengdu, carbonaceous species contributed mostly to fine particles. However, sulfate and nitrate contributed mostly to fine particles in Tianjin and Hangzhou. The contributions of EC and Ca2+ to coarse-mode particles was much higher than that in other cities, implying the greater influence of soil particles, construction dust or falling dust to PM in Chengdu. In addition, there were greater emission source of NH4+ in Chengdu. Northwest, west and southeast were the major transport pathways of air masses for Tianjin, Hangzhou and Chengdu. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Size distribution Carbonaceous specie Inorganic ion Tianjin Hangzhou Chengdu |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000393635300011 |
WOS关键词 | YANGTZE-RIVER DELTA ; WATER-SOLUBLE IONS ; LONG-RANGE TRANSPORT ; SOURCE APPORTIONMENT ; SICHUAN BASIN ; PARTICULATE MATTER ; AIR-POLLUTION ; VERTICAL CHARACTERISTICS ; CARBONACEOUS AEROSOL ; SPATIAL VARIABILITY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/38420 |
专题 | 地球科学 |
作者单位 | 1.Nankai Univ, Coll Environm Sci & Engn, State Environm Protect Key Lab Urban Ambient Air, 38 Tongyan Rd, Tianjin 300071, Peoples R China; 2.Tianjin Inst Meteorol Sci, Tianjin 300074, Peoples R China; 3.Hangzhou Municipal Environm Monitoring Ctr, Hangzhou 310007, Zhejiang, Peoples R China; 4.Chengdu Res Acad Environm Sci, Chengdu 610042, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Jiao,Zhang, Jin-sheng,Liu, Ze-jun,et al. Characterization of chemical compositions in size-segregated atmospheric particles during severe haze episodes in three mega-cities of China[J]. ATMOSPHERIC RESEARCH,2017,187. |
APA | Wang, Jiao.,Zhang, Jin-sheng.,Liu, Ze-jun.,Wu, Jian-hui.,Zhang, Yu-fen.,...&Zhu, Tan.(2017).Characterization of chemical compositions in size-segregated atmospheric particles during severe haze episodes in three mega-cities of China.ATMOSPHERIC RESEARCH,187. |
MLA | Wang, Jiao,et al."Characterization of chemical compositions in size-segregated atmospheric particles during severe haze episodes in three mega-cities of China".ATMOSPHERIC RESEARCH 187(2017). |
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