Five-Year Record of Black Carbon Concentrations in Urban Wanzhou, Sichuan Basin, China

doi:10.4209/aaqr.2019.10.0516

	Five-Year Record of Black Carbon Concentrations in Urban Wanzhou, Sichuan Basin, China
	Huang, Yimin 3; Zhang, Liuyi 2,3; Qiu, Yang 1; Chen, Yang 2; Shi, Guangming 1; Li, Tingzhen 3; Zhang, Lei 3; Yang, Fumo 1,2,3
刊名	AEROSOL AND AIR QUALITY RESEARCH
	2020-06-01
卷号	20 期号:6 页码:1282-1293
关键词	Black carbon Seasonal variation Diel variation Meteorological parameters
ISSN号	1680-8584
DOI	10.4209/aaqr.2019.10.0516
通讯作者	Shi, Guangming(shigm@scu.edu.cn) ; Yang, Fumo(fmyang@cigit.ac.cn)
英文摘要	The atmospheric fine particle black carbon (BC) was measured from June 2013 till February 2018 in Wanzhou District, the second largest metropolitan area in Chongqing Municipality, China, which is located in the eastern Sichuan Basin. The average daily concentration ranged from 0.5 to 10.4 mu g m(-3), with a mean of 4.4 +/- 2.2 mu g m(-3), and the annual mean displayed a significantly decreasing trend, from 5.3 mu g m(-3) in 2013 to 3.7 mu g m(-3) in 2017. The frequency distribution of the average daily concentrations during the years 2014-2017 skewed toward lower values (compared to the rest of the study period), with over 60% falling between 1 and 5 mu g m(-3). The BC exhibited a seasonal pattern, with the highest concentrations being reported during winter, followed by spring and fall, and the lowest ones during summer, as well as a double-peaked diel variability all year round, with a morning peak occurring between 07:00 and 09:00 and an evening peak between 19:00 and 21:00, Furthermore, the concentration was negatively correlated with the planetary boundary layer (PBL) height and influenced by the strong scavenging effect of precipitation. An inverse relationship between the concentration and the wind speed was observed when the latter was below 2.0 m s(-1). The wind direction also affected the concentration, with easterly and southeasterly winds accompanying higher levels of BC regardless of the season.
资助项目	National Natural Science Foundation of China[41375123] ; Fundamental Research Funds for the Central Universities[YJ201891] ; Science and Technology Commission of Chongqing Project[cstc2018jcyjAX0236] ; Scientific and Technological Research Program of Chongqing Municipal Education Commission ; Chongqing Three Gorges University project[19QN03]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TAIWAN ASSOC AEROSOL RES-TAAR
WOS记录号	WOS:000537943300010
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/11207]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Shi, Guangming; Yang, Fumo
作者单位	1.Sichuan Univ, Dept Environm Sci & Engn, Natl Engn Res Ctr Flue Gas Desulfurizat, Chengdu, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Chongqing Three Gorges Univ, Key Lab Water Environm Evolut & Pollut Control Th, Chongqing 404100, Peoples R China
推荐引用方式 GB/T 7714	Huang, Yimin,Zhang, Liuyi,Qiu, Yang,et al. Five-Year Record of Black Carbon Concentrations in Urban Wanzhou, Sichuan Basin, China[J]. AEROSOL AND AIR QUALITY RESEARCH,2020,20(6):1282-1293.
APA	Huang, Yimin.,Zhang, Liuyi.,Qiu, Yang.,Chen, Yang.,Shi, Guangming.,...&Yang, Fumo.(2020).Five-Year Record of Black Carbon Concentrations in Urban Wanzhou, Sichuan Basin, China.AEROSOL AND AIR QUALITY RESEARCH,20(6),1282-1293.
MLA	Huang, Yimin,et al."Five-Year Record of Black Carbon Concentrations in Urban Wanzhou, Sichuan Basin, China".AEROSOL AND AIR QUALITY RESEARCH 20.6(2020):1282-1293.