气候变化领域集成服务门户(CCPortal): Estimation of hygroscopic growth properties of source-related sub-micrometre particle types in a mixed urban aerosol

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DOI	10.1038/s41612-021-00175-w
	Estimation of hygroscopic growth properties of source-related sub-micrometre particle types in a mixed urban aerosol
	Vu T.V.; Shi Z.; Harrison R.M.
发表日期	2021
ISSN	23973722
卷号	4 期号:1
英文摘要	Knowledge of hygroscopic properties is essential to prediction of the role of aerosol in cloud formation and lung deposition. Our objective was to introduce a new approach to classify and predict the hygroscopic growth factors (Gfs) of specific atmospheric sub-micrometre particle types in a mixed aerosol based on measurements of the ensemble hygroscopic growth factors and particle number size distribution (PNSD). Based on a non-linear regression model between aerosol source contributions from PMF applied to the PNSD data set and the measured Gf values (at 90% relative humidity) of ambient aerosols, the estimated mean Gf values for secondary inorganic, mixed secondary, nucleation, urban background, fresh, and aged traffic-generated particle classes at a diameter of 110 nm were found to be 1.51, 1.34, 1.12, 1.33, 1.09 and 1.10, respectively. It is found possible to impute (fill) missing HTDMA data sets using a Random Forest regression on PNSD and meteorological conditions. © 2021, The Author(s).
语种	英语
scopus关键词	aerosol property; meteorology; particle size; size distribution; urban atmosphere
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177992
作者单位	Division of Environmental Health & Risk Management, School of Geography, Earth & Environmental Sciences, University of Birmingham, Birmingham, United Kingdom; Institute of Earth Surface System Science, Tianjin University, Tianjin, China; Department of Environmental Sciences/Center of Excellence in Environmental Studies, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia
推荐引用方式 GB/T 7714	Vu T.V.,Shi Z.,Harrison R.M.. Estimation of hygroscopic growth properties of source-related sub-micrometre particle types in a mixed urban aerosol[J],2021,4(1).
APA	Vu T.V.,Shi Z.,&Harrison R.M..(2021).Estimation of hygroscopic growth properties of source-related sub-micrometre particle types in a mixed urban aerosol.npj Climate and Atmospheric Science,4(1).
MLA	Vu T.V.,et al."Estimation of hygroscopic growth properties of source-related sub-micrometre particle types in a mixed urban aerosol".npj Climate and Atmospheric Science 4.1(2021).