CHARACTERISTICS OF OC/EC IN PM2.5 OBSERVED IN A MOUNTAINOUS SUBURB OF MEGACITY CHONGQING

	CHARACTERISTICS OF OC/EC IN PM2.5 OBSERVED IN A MOUNTAINOUS SUBURB OF MEGACITY CHONGQING
	Wang, Xianghong 1; Xiao, Xiong 1,2; Wang, Baozhen 1; Yuan, Jing 1
刊名	FRESENIUS ENVIRONMENTAL BULLETIN
	2020
卷号	29 期号:8 页码:6602-6608
关键词	Organic carbon Element carbon Secondary organic carbon
ISSN号	1018-4619
通讯作者	Wang, Xianghong(wangxianghong@yznu.edu.cn)
英文摘要	Mass concentrations of organic carbon (OC) and elemental carbon (EC) were measured during winter of 2014 and summer of 2015 in the mountainous Fuling District of megacity Chongqing to understand the Carbon Aerosol in PM2.5. Results showed that the average concentration of OC was 8.22 mu g. m(-3) in the summer and 30.61 mu g.m(-3) in the winter, The average concentration of EC was 2.95 mu g.m(-3) and 12,39 mu g.m(-3), in summer and winter, respectively. Both OC and EC concentrations in winter were higher than those in summer. The ratios of OC/EC for both seasons exceeded 2 with values of 3.18 and 2.97 in summer and winter, respectively, indicating the existence of the secondary pollution. By the tracer method of EC, the estimated concentration of the secondary organic carbon (SOC) was between 0.96 similar to 7.76 mu g.m(-3) with an average of 3.59 mu g.m(-3), and accounted for 45.43%of the total OC in summer. In contrast, the SOC concentration in winter was between similar to 0.04-29.07 mu gm(-3) and averaged at 11.16 mu gm(-3) and 41.64%of the total OC. The high concentration of SOC in winter is probably duc to thc cloudy weather in thc mountain region, which is not conducive for pollutant spreading and/or diffusion.
资助项目	Chongqing Municipal Commission of natural science foundation projects[cstc2019jcyj-msxm X0860]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	PARLAR SCIENTIFIC PUBLICATIONS (P S P)
WOS记录号	WOS:000629177800028
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/13267]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Wang, Xianghong
作者单位	1.Yangtze Normal Univ, Green Intelligent Environm Sch, 16 Li Du Juxian Rd, Chongqing 408100, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xianghong,Xiao, Xiong,Wang, Baozhen,et al. CHARACTERISTICS OF OC/EC IN PM2.5 OBSERVED IN A MOUNTAINOUS SUBURB OF MEGACITY CHONGQING[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2020,29(8):6602-6608.
APA	Wang, Xianghong,Xiao, Xiong,Wang, Baozhen,&Yuan, Jing.(2020).CHARACTERISTICS OF OC/EC IN PM2.5 OBSERVED IN A MOUNTAINOUS SUBURB OF MEGACITY CHONGQING.FRESENIUS ENVIRONMENTAL BULLETIN,29(8),6602-6608.
MLA	Wang, Xianghong,et al."CHARACTERISTICS OF OC/EC IN PM2.5 OBSERVED IN A MOUNTAINOUS SUBURB OF MEGACITY CHONGQING".FRESENIUS ENVIRONMENTAL BULLETIN 29.8(2020):6602-6608.