Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2019.104687 |
Chemical characterization and source analysis of water-soluble inorganic ions in PM2.5 from a plateau city of Kunming at different seasons | |
Guo, Wei1,2; Zhang, Zhongyi1,2; Zheng, Nengjian1,2; Luo, Li1,2; Xiao, Huayun1,3; Xiao, Hongwei1,2 | |
2020-04-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
![]() |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2020 |
卷号 | 234 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Water-soluble inorganic ions (WSIIs) in PM2.5 from different cities have been studied in previous studies. However, the studies of WSIIs in plateau cities are relative deficient. Due to differences in topography, climate and emission sources, the WSIIs characteristics of plateau cities are expected to be different. Here, we determined the concentrations of WSIIs (SO42-, NO3-, NH4+, Ca2+, Mg2+, Na+, K+, F-, Cl-, NO2-) in PM2.5 from different seasons of Kunming, a typical plateau city in southwest China. The data will improve our understanding of the chemical characterization and source of PM2.5 in plateau environment. Our results showed that the secondary aerosols were the main pollutants (contributing > 50% to PM2.5) in PM2.5 of Kunming, which mainly from coal combustion, agricultural activities and vehicle exhaust. Seasonally, high volatility of the NO3- and NH4+ and washout effects of rainfall in hot months (wet seasons) were favorable for the decreased of pollutants, while high emission, poor dispersion conditions and low removal rate could lead to the increased of pollutants in cold months (dry seasons). It suggested that adequate NH3 and intense solar radiation promotes the photochemical reactions of SO2, NOx and NH3 to form NH4HSO4, (NH4)(2)SO4 and NH4NO3. High temperature in hot months would promote the volatilization of NH4NO3 in Kunming. |
英文关键词 | PM2.5 Water-soluble inorganic ions (WSIIs) Source identification Seasonality Kunming |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000513182600001 |
WOS关键词 | SEGREGATED ATMOSPHERIC PARTICLES ; AEROSOL OPTICAL-PROPERTIES ; SOURCE IDENTIFICATION ; SOURCE APPORTIONMENT ; SUMMERTIME PM2.5 ; AIR MASSES ; CHINA ; COMPONENTS ; HEBEI ; 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/278821 |
专题 | 地球科学 |
作者单位 | 1.East China Univ Technol, Jiangxi Prov Key Lab Causes & Control Atmospher P, Nanchang 330013, Jiangxi, Peoples R China; 2.East China Univ Technol, Coll Water Resources & Environm Engn, Nanchang 330013, Jiangxi, Peoples R China; 3.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China |
推荐引用方式 GB/T 7714 | Guo, Wei,Zhang, Zhongyi,Zheng, Nengjian,et al. Chemical characterization and source analysis of water-soluble inorganic ions in PM2.5 from a plateau city of Kunming at different seasons[J]. ATMOSPHERIC RESEARCH,2020,234. |
APA | Guo, Wei,Zhang, Zhongyi,Zheng, Nengjian,Luo, Li,Xiao, Huayun,&Xiao, Hongwei.(2020).Chemical characterization and source analysis of water-soluble inorganic ions in PM2.5 from a plateau city of Kunming at different seasons.ATMOSPHERIC RESEARCH,234. |
MLA | Guo, Wei,et al."Chemical characterization and source analysis of water-soluble inorganic ions in PM2.5 from a plateau city of Kunming at different seasons".ATMOSPHERIC RESEARCH 234(2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论