Aerosol effects on ozone concentrations in Beijing: A model sensitivity   study

doi:10.1016/S1001-0742(11)60811-5

CORC > 北京大学 > 环境科学与工程学院

	Aerosol effects on ozone concentrations in Beijing: A model sensitivity study
	Xu, Jun ; Zhang, Yuanhang ; Zheng, Shaoqing ; He, Youjiang
刊名	journal of environmental sciences china
	2012
关键词	aerosol heterogeneous reactions ozone radiative influence MINERAL AEROSOL HETEROGENEOUS REACTIONS TROPOSPHERIC CHEMISTRY EAST-ASIA URBAN PARTICLES SURFACES IMPACT WATER OH
DOI	10.1016/S1001-0742(11)60811-5
英文摘要	Most previous O-3 simulations were based only on gaseous phase photochemistry. However, some aerosol-related processes, namely, heterogeneous reactions occurring on the aerosol surface and photolysis rate alternated by aerosol radiative influence, may affect O-3 photochemistry under high aerosol loads. A three-dimensional air quality model, Models-3/Community Multi-scale Air Quality-Model of Aerosol Dynamics, Reaction, Ionization, and Dissolution, was employed to simulate the effects of the above-mentioned processes on O-3 formation under typical high O-3 episodes in Beijing during summer. Five heterogeneous reactions, i.e., NO2, NO3, N2O5, HO2, and O-3, were individually investigated to elucidate their effects on O-3 formation. The results showed that the heterogeneous reactions significantly affected O-3 formation in the urban plume. NO2 heterogeneous reaction increased O-3 to 90 ppb, while HO2 heterogeneous reaction decreased O-3 to 33 ppb. In addition, O-3 heterogeneous loss decreased O-3 to 31 ppb. The effects of NO2, NO3, and N2O5 heterogeneous reactions showed opposite O-3 concentration changes between the urban and extra-urban areas because of the response of the reactions to the two types of O-3 formation regimes. When the aerosol radiative influence was included, the photolysis rate decreased and O-3 decreased significantly to 73 ppb O-3. The two aerosol-related processes should be considered in the study of O-3 formation because high aerosol concentration is a ubiquitous phenomenon that affects the urban- and regional air quality in China.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000303297400011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Environmental Sciences; SCI(E); EI; 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 1; ARTICLE; 4; 645-656; 24
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/236258]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Xu, Jun,Zhang, Yuanhang,Zheng, Shaoqing,et al. Aerosol effects on ozone concentrations in Beijing: A model sensitivity study[J]. journal of environmental sciences china,2012.
APA	Xu, Jun,Zhang, Yuanhang,Zheng, Shaoqing,&He, Youjiang.(2012).Aerosol effects on ozone concentrations in Beijing: A model sensitivity study.journal of environmental sciences china.
MLA	Xu, Jun,et al."Aerosol effects on ozone concentrations in Beijing: A model sensitivity study".journal of environmental sciences china (2012).