Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2018.10.010 |
Wintertime aerosol chemistry in Beijing during haze period: Significant contribution from secondary formation and biomass burning emission | |
Li, Xingru1,2,3; Jiang, Lei4; Bai, Yu2; Yang, Yang2; Liu, Shuiqiao3; Chen, Xi2; Xu, Jing2; Liu, Yusi2; Wang, Yingfeng2; Guo, Xueqing2; Wang, Yuesi5,6; Wang, Gehui1,6 | |
2019-04-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2019 |
卷号 | 218页码:25-33 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Air pollution in north China is still severe, although Chinese government has exerted great efforts to cut down pollutant emissions in the past decade. To understand the chemistry and sources of the haze particles in north China, PM2.5 aerosols were collected in Beijing from January 7 to February 27, 2014, during which two haze episodes (haze I and haze II) occurred. The samples were analyzed for water soluble inorganic ions, trace elements, sugars, n-alkane, polycyclic aromatic hydrocarbons (PAHs), fatty acids, dicarboxylic acid, EC (elemental carbon) and OC (organic carbon). Our results showed that relative abundances of primary species such as sugars, PAHs and EC were more abundant on the clean days and the haze I period in Beijing, while secondary aerosols especially secondary inorganic aerosol (SIA)were more abundant in the haze II period. Source apportionment further showed that emissions from cooking (21.6%), road-dust (19.4%), coal combustion (17.8%) and biomass burning (15.4%) were the main sources of PM2.5 during the clean days, while biomass burning (20.1%) and coal combustion (17.1%) were the main sources during haze I period. For the haze II period, vehicle exhausts (26.9%), secondary aerosol formation (26.6%) and industrial emission (19.1%) were the dominant sources of PM2.5. Our work suggests that it is indispensable to reduce the emissions from biomass burning and vehicle exhaust in Beijing in order to further mitigate the haze pollution. |
英文关键词 | Haze PM2.5 Chemical compositions Organic tracers Source apportionment |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000457814600003 |
WOS关键词 | POLYCYCLIC AROMATIC-HYDROCARBONS ; ORGANIC MARKER COMPOUNDS ; CHEMICAL-COMPOSITION ; SOURCE APPORTIONMENT ; PARTICULATE MATTER ; ATMOSPHERIC AEROSOLS ; SEASONAL-VARIATIONS ; REGIONAL TRANSPORT ; MOLECULAR TRACERS ; SIZE DISTRIBUTION |
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/38617 |
专题 | 地球科学 |
作者单位 | 1.East China Normal Univ, Sch Geog Sci, Key Lab Geog Informat Sci, Minist Educ, Shanghai 200241, Peoples R China; 2.Capital Normal Univ, Dept Chem, Analyt & Testing Ctr, Beijing 100048, Peoples R China; 3.Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China; 4.Beijing Municipal Res Inst Environm Protect, Beijing 100037, Peoples R China; 5.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 6.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Xingru,Jiang, Lei,Bai, Yu,et al. Wintertime aerosol chemistry in Beijing during haze period: Significant contribution from secondary formation and biomass burning emission[J]. ATMOSPHERIC RESEARCH,2019,218:25-33. |
APA | Li, Xingru.,Jiang, Lei.,Bai, Yu.,Yang, Yang.,Liu, Shuiqiao.,...&Wang, Gehui.(2019).Wintertime aerosol chemistry in Beijing during haze period: Significant contribution from secondary formation and biomass burning emission.ATMOSPHERIC RESEARCH,218,25-33. |
MLA | Li, Xingru,et al."Wintertime aerosol chemistry in Beijing during haze period: Significant contribution from secondary formation and biomass burning emission".ATMOSPHERIC RESEARCH 218(2019):25-33. |
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