A synchronous observation of enhanced aerosol and NO2 over Beijing, China, in winter 2015

doi:10.1016/j.scitotenv.2016.09.189

	A synchronous observation of enhanced aerosol and NO2 over Beijing, China, in winter 2015
	Chen, Zhenyi1 ; Liu, Cheng 1,2,3; Liu, Wenqing1 ; Zhang, Tianshu1 ; Xu, Jin 1
	2017
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
摘要	Despite extensive efforts into the characterization of air pollution during the past decade, concurrent real-time characterization of aerosol and NO2 as well as satellite observation above the urban canopy in the megacity of Beijing has sparsely been performed to date. We conducted a simultaneous real-time measurement of aerosol and NO2 in urban Beijing in a pollution episode from November 25, 2015 to December 2, 2015. The aerosol extinction coefficient was measured by a 532 Mie lidar and the NO2 concentration by a Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS). The highest aerosol extinction coefficient was 1.55 (+/-0.16) km(-1) at 532 m at a height of 0.27 km. The high average aerosol extinction was observed throughout the pollution period, probably due to the favorable static weather conditions under high surface high-pressure system and transportation sources. NO2 showed similar temporal variations between ground level and 0.3 km, whereas a much weaker diurnal evolution was found for NO2. The boundary layer structures were observed, and the relatively homogeneous mixture maintained the pollution within the layer under 0.5 km. Ozone Monitoring Instrument (OMI) NO2 products based on well-known DOAS trace gas fitting algorithm and WRF-Chem model further illustrated the simultaneous enhancement of NO2 during the observation period. Backward trajectories suggest that long-range pollution transportation from northwest China contributes more to this pollution event. (C) 2016 Published by Elsevier B.V.
文章类型	Article
关键词	Aerosol No2 Lidar Max-doas
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.1016/j.scitotenv.2016.09.189
关键词[WOS]	AIR-POLLUTION ; NORTH CHINA ; APEC BLUE ; EMISSIONS ; LIDAR ; DOAS ; SIZE ; ICE
收录类别	SCI
语种	英语
项目资助者	Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)(2014CB447900) ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)(2014CB447900) ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)(2014CB447900) ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)(2014CB447900) ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)(2014CB447900) ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)(2014CB447900) ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)(2014CB447900) ; Key Project of Chinese National Programs for Fundamental Research and Development (973 Program)(2014CB447900) ; National Natural Science Foundation of China(41305126 ; National Natural Science Foundation of China(41305126 ; National Natural Science Foundation of China(41305126 ; National Natural Science Foundation of China(41305126 ; National Natural Science Foundation of China(41305126 ; National Natural Science Foundation of China(41305126 ; National Natural Science Foundation of China(41305126 ; National Natural Science Foundation of China(41305126 ; 41575021 ; 41575021 ; 41575021 ; 41575021 ; 41575021 ; 41575021 ; 41575021 ; 41575021 ; 91544212) ; 91544212) ; 91544212) ; 91544212) ; 91544212) ; 91544212) ; 91544212) ; 91544212)
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000390373400044
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/31714
专题	中科院安徽光学精密机械研究所
作者单位	1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, CAS Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
第一作者单位	中科院安徽光学精密机械研究所
推荐引用方式 GB/T 7714	Chen, Zhenyi,Liu, Cheng,Liu, Wenqing,et al. A synchronous observation of enhanced aerosol and NO2 over Beijing, China, in winter 2015[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,575(无):429-436.
APA	Chen, Zhenyi,Liu, Cheng,Liu, Wenqing,Zhang, Tianshu,&Xu, Jin.(2017).A synchronous observation of enhanced aerosol and NO2 over Beijing, China, in winter 2015.SCIENCE OF THE TOTAL ENVIRONMENT,575(无),429-436.
MLA	Chen, Zhenyi,et al."A synchronous observation of enhanced aerosol and NO2 over Beijing, China, in winter 2015".SCIENCE OF THE TOTAL ENVIRONMENT 575.无(2017):429-436.

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