Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.08.012 |
Chemical characteristics of PM2.5 lduring summer at a background site of the Yangtze River Delta in China | |
Liang, Linlin1,2; Engling, Guenter3,4; Zhang, Xiaoye1,2; Sun, Junying1,2; Zhang, Yangmei1,2; Xu, Wanyun1,2; Liu, Chang1,2; Zhang, Gen1,2; Liu, Xuyan5; Ma, Qianli6 | |
2017-12-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 198 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Taiwan; USA |
英文摘要 | With rapid economic development and urbanization, particular attention has been paid to atmospheric chemical studies in the Yangtze River Delta in China. PM2.5 samples were collected by a MiniVol(TM) air sampler in summer time at a background site of the Yangtze River Delta in China. Carbonaceous components, i.e., OC and EC, levoglucosan and water-soluble inorganic ions, including sulfate, nitrate, ammonium, etc., were quantified. The average concentration of PM2.5 in summer at Lin'an was 30.19 +/- 8.86 mu g m(-3), lower than previous studies reported, confirming that air pollution in China is improving, e.g., by emission control measures and subsequent reduction in PM emissions in China. Investigating the relationship among sulfate, nitrate and ammonium showed that SO42- existed as (NH4)(2)SO4, while NO3 may have been present as NaNO3 and KNO3. Based on molecular tracers, synoptic data as well as air mass back trajectory analysis, it was revealed that regional transport and stable synoptic conditions both play an important role in controlling the variations of aerosol chemical components. The comparison of chemical species between clean and hazy days showed that secondary organic and inorganic aerosols have different production processes. Secondary organic carbon (SOC) was much more important during clean days, while secondary inorganic aerosol species were readily produced and consequently became more important during polluted periods in Lin'an during summer time. |
英文关键词 | PM2.5 Organic aerosol Water-soluble inorganic ions Haze YRD |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413281000015 |
WOS关键词 | BIOMASS BURNING SMOKE ; ORGANIC-MATTER ; SEASONAL-VARIATIONS ; EVOLUTION PROCESSES ; RELATIVE-HUMIDITY ; AMBIENT AEROSOL ; FINE PARTICLES ; HAZE POLLUTION ; AIR-POLLUTION ; UNITED-STATES |
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/38317 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China; 2.Chinese Acad Meteorol Sci, Key Lab Atmospher Chem, Beijing, Peoples R China; 3.Natl Tsing Hua Univ, Dept Biomed Engn & Environm Sci, Hsinchu, Taiwan; 4.Calif Air Resources Board, El Monte, CA USA; 5.China Meteorol Adm, Natl Satellite Meteorol Ctr, Beijing, Peoples R China; 6.Linan Reg Atmosphere Background Stn, Linan, Peoples R China |
推荐引用方式 GB/T 7714 | Liang, Linlin,Engling, Guenter,Zhang, Xiaoye,et al. Chemical characteristics of PM2.5 lduring summer at a background site of the Yangtze River Delta in China[J]. ATMOSPHERIC RESEARCH,2017,198. |
APA | Liang, Linlin.,Engling, Guenter.,Zhang, Xiaoye.,Sun, Junying.,Zhang, Yangmei.,...&Ma, Qianli.(2017).Chemical characteristics of PM2.5 lduring summer at a background site of the Yangtze River Delta in China.ATMOSPHERIC RESEARCH,198. |
MLA | Liang, Linlin,et al."Chemical characteristics of PM2.5 lduring summer at a background site of the Yangtze River Delta in China".ATMOSPHERIC RESEARCH 198(2017). |
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