globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2016.11.009
Scopus记录号: 2-s2.0-84998799650
论文题名:
A comparison study of carbonaceous aerosols in a typical North China Plain urban atmosphere: Seasonal variability, sources and implications to haze formation
作者: Zhou S; , Yang L; , Gao R; , Wang X; , Gao X; , Nie W; , Xu P; , Zhang Q; , Wang W
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 149
起始页码: 95
结束页码: 103
语种: 英语
英文关键词: Biomass burning ; Carbonaceous aerosols ; Coal burning ; Haze ; Secondary organic aerosol
Scopus关键词: Aerosols ; Biomass ; Coal ; Combustion ; Organic carbon ; Biomass-burning ; Carbonaceous aerosol ; Coal-burning ; Haze ; Secondary organic aerosols ; Coal combustion
Scopus学科分类: Environmental Science: Water Science and Technology ; Earth and Planetary Sciences: Earth-Surface Processes ; Environmental Science: Environmental Chemistry
英文摘要: For a better understanding of the formation of regional haze in the North China Plain (NCP) region, aerosol concentrations and compositions, trace gases and meteorological factors were comprehensively measured for 1 year in Jinan, a typical city in the NCP. Through comparison studies between hazy & non-hazy days, and five years of changes, this paper presents the characterisation of seasonal variations and sources of carbonaceous aerosol, and their implications to haze formation in the NCP region. The contributions of carbonaceous aerosols (OC × 1.8 + EC) to PM2.5 ranged from 17.2 to 30.4% on hazy days and 20.5–29.7% on non-hazy days. The annual trends of organic carbon (OC) and elemental carbon showed obvious seasonality, with the lowest and highest concentrations in spring and winter, respectively. The ratio of secondary OC to OC on hazy days during all four seasons ranged from 43.8 to 63.4%, which was higher than that on non-hazy days. Different types of haze events are identified (e.g., combustion of coal and biomass), and the sources and formation mechanisms of carbonaceous aerosols are discussed. In winter, coal combustion and secondary formation were the main sources of carbonaceous aerosols. Biomass combustion contributed to the rapid enhancement of carbonaceous aerosols during summer and autumn. We found that the OC and secondary OC concentrations on haze-fog days during the winter of 2012–2013 in Jinan were much higher than those during the winter of 2007–2008, which was consistent with the ambient relative humidity. These results suggest that aqueous reaction played a significant role in the formation of secondary organic aerosols and contributed to regional haze formation in the NCP region. © 2016 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82531
Appears in Collections:气候变化事实与影响

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作者单位: Environment Research Institute, Shandong University, Jinan, China; School of Atmospheric Sciences, Sun Yat-Sen University, Guangzhou, China; Jiangsu Collaborative Innovation Center for Climate Change, Nanjing, China; Shandong Academy of Environmental Science, Jinan, China; School of Resources and Environment, University of Jinan, Jinan, China; Institute for Climate and Global Change Research & School of Atmospheric Sciences, Nanjing University, Nanjing, China; College of Geography and Environment, Shandong Normal University, Jinan, China

Recommended Citation:
Zhou S,, Yang L,, Gao R,et al. A comparison study of carbonaceous aerosols in a typical North China Plain urban atmosphere: Seasonal variability, sources and implications to haze formation[J]. Atmospheric Environment,2017-01-01,149
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