Characterizing the composition and evolution of and urban particles in Chongqing (China) during summertime

doi:10.1016/j.atmosres.2016.12.005

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 大气环境研究中心

	Characterizing the composition and evolution of and urban particles in Chongqing (China) during summertime
	Chen, Yang1,2 ; Yang, Fumo1,3 ; Mi, Tian 1; Cao, Junji 2; Shi, Guangming 1; Huang, Rujin 2,4; Wang, Huanbo 1; Chen, Jun 5; Lou, Shengrong 6; Wang, Qiyuan 2
刊名	ATMOSPHERIC RESEARCH
	2017-05-01
卷号	187 页码:84-94
关键词	Mixing state Atmospheric process Single particle Chongqing
ISSN号	0169-8095
DOI	10.1016/j.atmosres.2016.12.005
通讯作者	Yang, FM (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China. ; Yang, FM (reprint author), Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China.
英文摘要	Urban particles were investigated using a single particle aerosol mass spectrometer (SPAMS) in Chongqing during the summertime (from 07/05/2014 to 08/06/2014). Chemical composition, mixing state, and atmospheric behavior of urban particles were studied. The major particle types include ECOC (Elemental-Carbon-Organic-Carbon 20.6%), OC (20.1%), KSec (K-Secondary) (13.3%), BB (Biomass burning, 11.9%), NaK (sodium-potassium-rich, 73%), Al-rich (4.0%), Fe-rich (3.2%), Ca-rich (1.4%), Ca-EC, (1.6%), and NaKPb (0.5%). EC, ECOC, OC, and Ca-EC were prevalent in the condensation mode (<0.7 pm), while KSec, EC, NaK were significant in both the droplet mode (0.7-1.1 mu m) and coarse mode. Increases in aged groups such as EC, KSec, and NaK were observed in the afternoon. Case studies suggested that wet scavenging (rain) rates of different single particle types followed an order of NaKPb > Fe-rich > EC > Ca-EC > Ca-rich > KSec > OC > NaK > ECOC > Al-rich > BB. Increased number fraction of EC and KSec were correlated with the increase of odd oxygen (O-x = O-3 + NO2). EC, OC, and ECOC were enriched at higher relative humidity. The findings of this study on the mixing state, temporal variation, processing, and evolution of single particles provide new insight into the atmospheric behavior and impacts of urban particles. (C) 2016 Elsevier B.V. All rights reserved.
资助项目	Chinese Academy of Sciences[KJZD-EW-TZ-G06] ; National Natural Science Foundation of China[41375123] ; "Western Talents" of Chinese Academy of Sciences ; Basic and Frontier Research Plan of Chongqing[cstc2015jcyjA20003] ; Basic and Frontier Research Plan of Chongqing[cstc2014yykfC20003] ; Basic and Frontier Research Plan of Chongqing[cstckjcxljrc13] ; Shanghai Science and Technology Commission, China[13DZ2260900] ; Key Lab of Aerosol Chemistry & Physics Research Program
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000393635300007
内容类型	期刊论文
源URL	[http://172.16.51.4:88/handle/2HOD01W0/243]
专题	大气环境研究中心
通讯作者	Yang, Fumo
作者单位	1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 4.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland 5.Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China 6.Shanghai Acad Environm Sci, Shanghai 200233, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yang,Yang, Fumo,Mi, Tian,et al. Characterizing the composition and evolution of and urban particles in Chongqing (China) during summertime[J]. ATMOSPHERIC RESEARCH,2017,187:84-94.
APA	Chen, Yang.,Yang, Fumo.,Mi, Tian.,Cao, Junji.,Shi, Guangming.,...&Wang, Qiyuan.(2017).Characterizing the composition and evolution of and urban particles in Chongqing (China) during summertime.ATMOSPHERIC RESEARCH,187,84-94.
MLA	Chen, Yang,et al."Characterizing the composition and evolution of and urban particles in Chongqing (China) during summertime".ATMOSPHERIC RESEARCH 187(2017):84-94.