气候变化领域集成服务门户(CCPortal): CCN activation of carbonaceous aerosols from different combustion emissions sources: A laboratory study

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DOI	10.1016/j.atmosres.2020.105252
	CCN activation of carbonaceous aerosols from different combustion emissions sources: A laboratory study
	Panicker A.S.; Anil Kumar V.; Raju M.P.; Pandithurai G.; Safai P.D.; Beig G.; Das S.
发表日期	2021
ISSN	0169-8095
卷号	248
英文摘要	A laboratory-based experiment has been carried out to understand the cloud condensation nuclei (CCN) activation of carbonaceous aerosols from various sources of emissions such as combustion of wood, cow dung cake, wood-coal burning and diesel generator (DG). The aerosol particles from DG exhaust found to activate completely to cloud condensation nuclei (CCN) at a higher supersaturation (SS) of 0.9% (100.9% RH). However, the CCN activation was faster in carbonaceous aerosol emission from combustion of cow dung cake, where complete CCN activation of particles was observed at 0.3% SS. Wood burning also showed a faster activation at 0.4% SS, whereas for wood-coal burning, the CCN activation has occurred at 0.7% SS. Organic carbon (OC) was found to be the dominant carbon component in all four emission sources compared to elemental carbon (EC) and black carbon (BC). Among all four combustion emissions, wood-burning had the highest OC/EC ratio (8.35) and the lowest was for DG emissions (2.03). BC mass concentration was higher in DG emissions compared to other emissions for the same number of aerosol particles. The non-refractory aerosol chemical composition analysis showed that organic species dominate inorganic species in all the emissions. The study indicates that the carbonaceous aerosols originating from direct emission sources have the potential to get activated as CCN at high supersaturations. © 2020 Elsevier B.V.
英文关键词	Black carbon; CCN; Elemental carbon; Organic carbon
语种	英语
scopus关键词	Aerosols; Chemical activation; Chemical analysis; Condensation; Organic carbon; Supersaturation; Wood; Aerosol chemical composition; Aerosol particles; Carbonaceous aerosol; Cloud condensation nuclei; Combustion emissions; Inorganic species; Laboratory studies; Mass concentration; Coal combustion; aerosol; biomass burning; black carbon; cloud condensation nucleus; combustion; concentration (composition); elemental carbon; laboratory method; organic carbon; source apportionment
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141678
作者单位	Indian Institute of Tropical Meteorology, MoES, Govt. of India, Pune, India; International Centre for Theoretical Physics, Trieste, Italy
推荐引用方式 GB/T 7714	Panicker A.S.,Anil Kumar V.,Raju M.P.,et al. CCN activation of carbonaceous aerosols from different combustion emissions sources: A laboratory study[J],2021,248.
APA	Panicker A.S..,Anil Kumar V..,Raju M.P..,Pandithurai G..,Safai P.D..,...&Das S..(2021).CCN activation of carbonaceous aerosols from different combustion emissions sources: A laboratory study.Atmospheric Research,248.
MLA	Panicker A.S.,et al."CCN activation of carbonaceous aerosols from different combustion emissions sources: A laboratory study".Atmospheric Research 248(2021).