Influences of relative humidity and particle chemical composition on   aerosol scattering properties during the 2006 PRD campaign

doi:10.1016/j.atmosenv.2007.10.077

CORC > 北京大学 > 环境科学与工程学院

	Influences of relative humidity and particle chemical composition on aerosol scattering properties during the 2006 PRD campaign
	Liu, Xingang ; Cheng, Yafang ; Zhang, Yuanhang ; Jung, Jinsang ; Sugimoto, Nobuo ; Chang, Shih-Yu ; Kim, Young J. ; Fan, Shaojia ; Zeng, Limin
刊名	大气环境
	2008
关键词	hygroscopic growth factor carbonaceous aerosols sea salt PRD campaign HYGROSCOPIC PROPERTIES HUMIDIFICATION FACTORS RADIATIVE PROPERTIES LIGHT-ABSORPTION ACE-ASIA DUST DEPOSITION POLLUTION ATLANTIC BEHAVIOR
DOI	10.1016/j.atmosenv.2007.10.077
英文摘要	In situ measurements of the physical, chemical, and optical properties of aerosols were carried out in Guangzhou city, China, from 1 to 31 July 2006 during the Pearl River Delta (PRD) Campaign. The light extinction coefficient of the ambient atmosphere, the aerosol scattering coefficient under dry conditions, the aerosol absorption coefficient under ambient conditions, NO(2) concentration, and relative humidity (RH) were measured by transmissionmeter, an integrating nephelometer, a multi-angle absorption photometer (MAAP), a NO(X) analyzer, and art automatic meteorological station, respectively. Meanwhile, the molecular scattering coefficient was calculated by the Rayleigh scattering function using the US Standard Atmosphere. A method to calculate the aerosol hygroscopic growth factor(RH), defined its the ratio of the aerosol scattering coefficient under it wet condition to that under a dry condition (40% RH), is proposed based oil these optical parameters. The mean and standard deviation aerosol hygroscopic growth factors at 80% RH (f(RH) = 80%) in Ganzhou were 2.04 +/- 0.28, 2.29 +/- 0.28, and 2.68 +/- 0.59 for urban aerosols, mixed aerosols, and marine aerosols, respectively, with the air mass classification being based oil the air mass source region. The relationship between(RH) and RH is fitted by empirical equations and the fitting parameters are calculated. The relationships between(RH) = 80% and total carbon mass fraction (TCF) in PM(2.5), the water-soluble mass fraction (WSF) in PM(10), and the sea-salt aerosol mass fraction (SSF) in PM(10) reveal that the hygroscopic properties of the observed aerosol have a good positive correlation with the WSF and SSF, but have a negative correlation with the TCF. (C) 2007 Elsevier Ltd. All rights reserved.; Environmental Sciences; Meteorology & Atmospheric Sciences; SCI(E); EI; 55; ARTICLE; 7; 1525-1536; 42
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/158573]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Liu, Xingang,Cheng, Yafang,Zhang, Yuanhang,et al. Influences of relative humidity and particle chemical composition on aerosol scattering properties during the 2006 PRD campaign[J]. 大气环境,2008.
APA	Liu, Xingang.,Cheng, Yafang.,Zhang, Yuanhang.,Jung, Jinsang.,Sugimoto, Nobuo.,...&Zeng, Limin.(2008).Influences of relative humidity and particle chemical composition on aerosol scattering properties during the 2006 PRD campaign.大气环境.
MLA	Liu, Xingang,et al."Influences of relative humidity and particle chemical composition on aerosol scattering properties during the 2006 PRD campaign".大气环境 (2008).