Simultaneous measurements of urban and rural particles in Beijing - Part 2: Case studies of haze events and regional transport

doi:10.5194/acp-20-9249-2020

	Simultaneous measurements of urban and rural particles in Beijing - Part 2: Case studies of haze events and regional transport
	Chen, Yang 7; Shi, Guangming 4,7; Cai, Jing 5,6; Shi, Zongbo 3; Wang, Zhichao 7; Yao, Xiaojiang 7; Tian, Mi 7; Peng, Chao 7; Han, Yiqun 5,6; Zhu, Tong 5,6
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2020-08-05
卷号	20 期号:15 页码:9249-9263
ISSN号	1680-7316
DOI	10.5194/acp-20-9249-2020
通讯作者	Zheng, Mei(mzheng@pku.edu.cn) ; Yang, Fumo(fmyang@scu.edu.cn)
英文摘要	Two parallel field studies were conducted simultaneously at both urban and rural sites in Beijing from 1 to 29 November 2016. An online single-particle chemical composition analysis was used as a tracer system to investigate the impact of heating activities and the formation of haze events. Central heating elevated EC-Nit (elemental carbon-nitrate), EC-Nit-Sul (EC-nitrate-sulfate), and ECOC-Nit (ECOC: internal-mixed elemental carbon and organic carbon) levels by 1.5-2.0 times due to the increased use of coal in the urban areas. However, in the rural areas, residential heating, which mainly consumes low-quality coal, and biomass burning elevated ECOC-Nit-Sul, NaK-Nit, and OC-Sul levels by 1.2-1.5 times. Four severe haze events (hourly PM2.5 > 200 mu g m(-3)) occurred at both sites during the studies. In each event, a pattern of transport and accumulation was found. In the first stage of the pattern, particles were regionally transported from the south and southwest and accumulated under air stagnation, creating significant secondary formation, then PM2.5 was elevated to 300 mu g m(-3). At both sites, the severe haze occurred due to different patterns of local emission, transport, and secondary processes. At Pinggu (PG), the sulfate-rich residential coal burning particles were dominant. The regional transport between PG and Peking University (PKU) was simulated using the Weather Research and Forecasting HYbrid Single-Particle Lagrangian Integrated Trajectory (WRF-HYSPLIT) model, confirming that the transport from PG to PKU was significant, but PKU to PG occurred occasionally. These cases can explain the serious air pollution in the urban areas of Beijing and the interaction between urban and rural areas. This study can provide references for enhancing our understanding of haze formation in Beijing.
资助项目	National Natural Science Foundation of China[41703136] ; National Natural Science Foundation of China[81571130100]
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000558763100003
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/11619]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Zheng, Mei; Yang, Fumo
作者单位	1.Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China 2.Tsinghua Univ, Dept Earth Syst Sci, Beijing 100084, Peoples R China 3.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham B15 2TT, W Midlands, England 4.Sichuan Univ, Coll Architecture & Environm, Dept Environm Sci & Engn, Chengdu 610065, Peoples R China 5.Peking Univ, Coll Environm Sci & Engn, BIC ESAT, Beijing 100871, Peoples R China 6.Peking Univ, Coll Environm Sci & Engn, SKL ESPC, Beijing 100871, Peoples R China 7.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yang,Shi, Guangming,Cai, Jing,et al. Simultaneous measurements of urban and rural particles in Beijing - Part 2: Case studies of haze events and regional transport[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(15):9249-9263.
APA	Chen, Yang.,Shi, Guangming.,Cai, Jing.,Shi, Zongbo.,Wang, Zhichao.,...&He, Kebin.(2020).Simultaneous measurements of urban and rural particles in Beijing - Part 2: Case studies of haze events and regional transport.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(15),9249-9263.
MLA	Chen, Yang,et al."Simultaneous measurements of urban and rural particles in Beijing - Part 2: Case studies of haze events and regional transport".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.15(2020):9249-9263.