The impact of relative humidity on the size distribution and chemical processes of major water-soluble inorganic ions in the megacity of Chongqing, China

doi:10.1016/j.atmosres.2017.03.016

GSTDTAP > 地球科学

DOI	10.1016/j.atmosres.2017.03.016
	The impact of relative humidity on the size distribution and chemical processes of major water-soluble inorganic ions in the megacity of Chongqing, China
	Wang, Lu 1,2; Ji, Dongsheng 1; Li, Yi 3; Gao, Meng 4; Tian, Shili 1; Wen, Tianxue 1; Liu, Zirui 1; Wang, Lili 1; Xu, Peng 1,5; Jiang, Changsheng 5; Wang, Yuesi 1
	2017-08-01
发表期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2017
卷号	192
文章类型	Article
语种	英语
国家	Peoples R China; USA
英文摘要	To investigate the impacts of relative humidity (RH) on the size distribution and evolution of water-soluble inorganic ions (WSIIs) in Chongqing, China, size-resolved aerosols were collected using nine-stage viable Andersen cascade impactors bi-weeldy from June 2012 to May 2014. The WSIls (SO42-, NO3-, NH4+, K+, Na+, Cl-, Ca2+, Mg2+ and F-) were analyzed. The SO42-, NO3- and NH4+ peaks shifted from 0.43-0.65 mu m particles at 40-60% RH to 0.65-1.1 mu m particles at 70-90% RH. For K+, Na+ and Cl- the peak concentrations were in the size range of 0.65-2.1 mu m and increased as the RH increased from 40 to 90%. However, the Ca2+, Mg2+ and F- peaks at all RH levels were mainly concentrated in the coarse mode, and their concentrations did not increase as regularly as those of SO42-, NO3- and NH4+. All of the results suggest that RH was likely an important factor in determining the size distributions of the WSIIs. SO42-, NO3- and NH4+ increased linearly in all size ranges as a function of RH (40-90%). Additionally, SO42- presented the highest rate of mass increase at 1.8 pg/m(3)/10% RH in 1.1
英文关键词	Relative humidity Size distribution Water-soluble inorganic ions Chemical processes Chongqing
领域	地球科学
收录类别	SCI-E
WOS记录号	WOS:000401885000003
WOS关键词	SPATIAL/TEMPORAL VARIABILITY ; AEROSOL COMPOSITION ; PM2.5 ; POLLUTION ; URBAN ; AMMONIA ; SULFATE ; AIR ; INSIGHTS ; ACIDITY
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/38166
专题	地球科学
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Arizona Dept Environm Qual, Phoenix, AZ 85007 USA; 4.Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA; 5.Southwest Univ, Coll Resources & Environm, Chongqing 400715, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lu,Ji, Dongsheng,Li, Yi,et al. The impact of relative humidity on the size distribution and chemical processes of major water-soluble inorganic ions in the megacity of Chongqing, China[J]. ATMOSPHERIC RESEARCH,2017,192.
APA	Wang, Lu.,Ji, Dongsheng.,Li, Yi.,Gao, Meng.,Tian, Shili.,...&Wang, Yuesi.(2017).The impact of relative humidity on the size distribution and chemical processes of major water-soluble inorganic ions in the megacity of Chongqing, China.ATMOSPHERIC RESEARCH,192.
MLA	Wang, Lu,et al."The impact of relative humidity on the size distribution and chemical processes of major water-soluble inorganic ions in the megacity of Chongqing, China".ATMOSPHERIC RESEARCH 192(2017).