The characteristics of Beijing aerosol during two distinct episodes:   Impacts of biomass burning and fireworks

doi:10.1016/j.envpol.2013.10.037

CORC > 北京大学 > 环境科学与工程学院

	The characteristics of Beijing aerosol during two distinct episodes: Impacts of biomass burning and fireworks
	Cheng, Yuan ; Engling, Guenter ; He, Ke-bin ; Duan, Feng-kui ; Du, Zhen-yu ; Ma, Yong-liang ; Liang, Lin-lin ; Lu, Zi-feng ; Liu, Jiu-meng ; Zheng, Mei ; Weber, Rodney J.
刊名	environmental pollution
	2014
关键词	Secondary aerosol Biomass burning Firework Levoglucosan WSOC FINE-PARTICLE EMISSIONS PULSED-AMPEROMETRIC DETECTION WOOD STOVE COMBUSTION CHEMICAL-CHARACTERIZATION UNITED-STATES FIREPLACE COMBUSTION ORGANIC AEROSOLS PHOTOCHEMICAL OXIDATION ATMOSPHERIC PARTICLES SIZE DISTRIBUTIONS
DOI	10.1016/j.envpol.2013.10.037
英文摘要	The chemical composition of Beijing aerosol was measured during summer and winter. Two distinct episodes were identified. Water-soluble potassium (K) increased significantly during the firework episode in winter with an episode to non-episode ratio of 4.97, whereas the biomass burning (BB) episode in summer was characterized by high episode to non-episode ratios of levoglucosan (6.38) and K+ (6.90). The BB and firework episodes had only a minor influence on the water-soluble OC (organic carbon) to OC ratio. Based on separate investigations of episode and non-episode periods, it was found that: (i) sulfate correlated strongly with both relative humidity and nitrate during the typical winter period presumably indicating the importance of the aqueous-phase oxidation of sulfur dioxide by nitrogen dioxide, (ii) oxalate and WSOC during both winter and summer in Beijing were mainly due to secondary formation, and (iii) high humidity can significantly enhance the formation potential of WSOC in winter. (C) 2013 Elsevier Ltd. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000331672500019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Environmental Sciences; SCI(E); EI; PubMed; 11; ARTICLE; ycheng@mail.tsinghua.edu.cn; hekb@tsinghua.edu.cn; 149-157; 185
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/189787]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Cheng, Yuan,Engling, Guenter,He, Ke-bin,et al. The characteristics of Beijing aerosol during two distinct episodes: Impacts of biomass burning and fireworks[J]. environmental pollution,2014.
APA	Cheng, Yuan.,Engling, Guenter.,He, Ke-bin.,Duan, Feng-kui.,Du, Zhen-yu.,...&Weber, Rodney J..(2014).The characteristics of Beijing aerosol during two distinct episodes: Impacts of biomass burning and fireworks.environmental pollution.
MLA	Cheng, Yuan,et al."The characteristics of Beijing aerosol during two distinct episodes: Impacts of biomass burning and fireworks".environmental pollution (2014).