Chemical speciation, transport and contribution of biomass burning smoke   to ambient aerosol in Guangzhou, a mega city of China

doi:10.1016/j.atmosenv.2010.05.024

CORC > 北京大学 > 环境科学与工程学院

	Chemical speciation, transport and contribution of biomass burning smoke to ambient aerosol in Guangzhou, a mega city of China
	Zhang, Zhisheng ; Engling, Guenter ; Lin, Chuan-Yao ; Chou, Charles C.K. ; Lung, Shih-Chun C. ; Chang, Shih-Yu ; Fan, Shaojia ; Chan, Chuen-Yu ; Zhang, Yuan-Hang
刊名	大气环境
	2010
关键词	Biomass combustion PM(10) Levoglucosan Non-sea-salt potassium Pearl River Delta FINE-PARTICLE EMISSIONS AIR-POLLUTION SOURCES FIREPLACE COMBUSTION PARTICULATE MATTER WOOD COMBUSTION UNITED-STATES ORGANIC-COMPOUNDS MOLECULAR MARKER HONG-KONG LEVOGLUCOSAN
DOI	10.1016/j.atmosenv.2010.05.024
英文摘要	Intensive measurements of aerosol (PM(10)) and associated water-soluble ionic and carbonaceous species were conducted in Guangzhou, a mega city of China, during summer 2006. Elevated levels of most chemical species were observed especially at nighttime during two episodes, characterized by dramatic build-up of the biomass burning tracers levoglucosan and non-sea-salt potassium, when the prevailing wind direction had changed due to two approaching tropical cyclones. High-resolution air mass back trajectories based on the MM5 model revealed that air masses with high concentrations of levoglucosan (43-473 ng m(-3)) and non-sea-salt potassium (0.83-3.2 mu g m(-3)) had passed over rural regions of the Pearl River Delta and Guangdong Province, where agricultural activities and field burning of crop residues are common practices. The relative contributions of biomass burning smoke to organic carbon in PM(10) were estimated from levoglucosan data to be on average 7.0 and 14% at daytime and nighttime, respectively, with maxima of 9.7 and 32% during the episodic transport events, indicating that biomass and biofuel burning activities in the rural parts of the Pearl River Delta and neighboring regions could have a significant impact on ambient urban aerosol levels. (C) 2010 Elsevier Ltd. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000280754600012&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Environmental Sciences; Meteorology & Atmospheric Sciences; SCI(E); EI; 43; ARTICLE; 26; 3187-3195; 44
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/242588]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Zhang, Zhisheng,Engling, Guenter,Lin, Chuan-Yao,et al. Chemical speciation, transport and contribution of biomass burning smoke to ambient aerosol in Guangzhou, a mega city of China[J]. 大气环境,2010.
APA	Zhang, Zhisheng.,Engling, Guenter.,Lin, Chuan-Yao.,Chou, Charles C.K..,Lung, Shih-Chun C..,...&Zhang, Yuan-Hang.(2010).Chemical speciation, transport and contribution of biomass burning smoke to ambient aerosol in Guangzhou, a mega city of China.大气环境.
MLA	Zhang, Zhisheng,et al."Chemical speciation, transport and contribution of biomass burning smoke to ambient aerosol in Guangzhou, a mega city of China".大气环境 (2010).