干旱区生态环境知识资源中心(Arid): A modeling study of the impact of heterogeneous reactions on mineral aerosol surfaces on tropospheric chemistry over East Asia

Arid

	A modeling study of the impact of heterogeneous reactions on mineral aerosol surfaces on tropospheric chemistry over East Asia
	Li Jiawei; Han Zhiwei
来源期刊	Particuology
ISSN	1674-2001
出版年	2010
卷号	8 期号:5 页码:433-441
英文摘要	Nine heterogeneous reactions (uptake of H_20_2, HNO_3, HO_2, N_20_5, NO_2, NO_3, O_3, OH and SO_2 on mineral aerosol surfaces) are incorporated into a Regional Air Quality Model System (RAQMS) to investigate their impacts on tropospheric chemistry in East Asia during the dust storm period in March 2006. Comparison with observations shows the model system well represents the behaviors of the gaseous and aerosol species. Most of the reaction probability y values used for this study are the best estimation specifically for dust samples from deserts of China, derived from analysis of a number of recent laboratory studies. There are large variations in gas and aerosol concentrations while taking heterogeneous reactions on mineral aerosol surface into account, especially during dust storm events. The domain-averaged monthly mean percentage changes in SO_2, NO_2, 0_3, HNO_3, NH_3, total sulfate, total nitrate and total ammonium concentrations are -4.4%, -3.8%, -2.1%, -22.0%, 12.7%, 6.6%, 26.1%, and -9.5%, respectively below 3 km. These changes indicate the considerable perturbation of heterogeneous reactions on mineral aerosol surface to tropospheric chemical system and components. The strength of heterogeneous reactions is determined by both reaction probability and gas precursor concentration. Among the nine reactions, dust uptakes of HNO_3, SO_2, and N_20_5 exert relatively large influences on the other chemical components, whereas the reactions regarding H_20_2, HO_2, and OH have little impacts
英文关键词	Heterogeneous reaction Mineral aerosol Tropospheric chemistry Numerical simulation Dust storm
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Chemistry
CSCD记录号	CSCD:4077726
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335080
作者单位	Li Jiawei, Key Laboratory of Regional Climate-Environment Research for Temperate East-Asia (RCE-TEA), Institute of Atmospheric Physics, Chinese Academy of Sciences, Key Laboratory of Regional Climate-Environment Research for Temperate East-Asia (RCE-TEA), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing China.; Han Zhiwei, Key Laboratory of Regional Climate-Environment Research for Temperate East-Asia (RCE-TEA), Institute of Atmospheric Physics, Chinese Academy of Sciences, Key Laboratory of Regional Climate-Environment Research for Temperate East-Asia (RCE-TEA), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing China.
推荐引用方式 GB/T 7714	Li Jiawei,Han Zhiwei. A modeling study of the impact of heterogeneous reactions on mineral aerosol surfaces on tropospheric chemistry over East Asia[J],2010,8(5):433-441.
APA	Li Jiawei,&Han Zhiwei.(2010).A modeling study of the impact of heterogeneous reactions on mineral aerosol surfaces on tropospheric chemistry over East Asia.Particuology,8(5),433-441.
MLA	Li Jiawei,et al."A modeling study of the impact of heterogeneous reactions on mineral aerosol surfaces on tropospheric chemistry over East Asia".Particuology 8.5(2010):433-441.