Summertime ozone formation in Xi'an and surrounding areas, China

doi:10.5194/acp-16-4323-2016

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Summertime ozone formation in Xi'an and surrounding areas, China
	Cao, Junji 5,6; Zhou, Weijian 5; Tie, Xuexi 5,6; Liu, Suixin 5,6; Zhang, Ting 5,6; Su, Xiaoli 5,6; Lei, Wenfang 3; Molina, Luisa T.3; Li, Guohui 5,6; Huang, Ru-Jin 4,6
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2016
卷号	16 期号:7 页码:4323-4342
DOI	10.5194/acp-16-4323-2016
文献子类	Article
英文摘要	In this study, the ozone (O-3) formation in China's northwest city of Xi'an and surrounding areas is investigated using the Weather Research and Forecasting atmospheric chemistry (WRF-Chem) model during the period from 22 to 24 August 2013, corresponding to a heavy air pollution episode with high concentrations of O-3 and PM2.5. The model generally performs well compared to measurements in simulating the surface temperature, relative humidity, and wind speed and direction, near-surface O-3 and PM2.5 mass concentrations, and aerosol constituents. High aerosol concentrations in Xi'an and surrounding areas significantly decrease the photolysis frequencies and can reduce O-3 concentrations by more than 50 mu g m(-3) (around 25 ppb) on average. Sensitivity studies show that the O-3 production regime in Xi'an and surrounding areas is complicated, varying from NOx to VOC (volatile organic compound)-sensitive chemistry. The industrial emissions contribute the most to the O-3 concentrations compared to biogenic and other anthropogenic sources, but neither individual anthropogenic emission nor biogenic emission plays a dominant role in the O-3 formation. Under high O-3 and PM2.5 concentrations, a 50 % reduction in all the anthropogenic emissions only decreases near-surface O-3 concentrations by about 14 % during daytime. The complicated O-3 production regime and high aerosol levels pose a challenge for O-3 control strategies in Xi'an and surrounding areas. Further investigation regarding O-3 control strategies will need to be performed, taking into consideration the rapid changes in anthropogenic emissions that are not reflected in the current emission inventories and the uncertainties in the meteorological field simulations.
WOS关键词	SECONDARY ORGANIC AEROSOL ; FINE PARTICULATE MATTER ; RIVER DELTA REGION ; MEXICO-CITY BASIN ; WRF-CHEM MODEL ; SURFACE OZONE ; FIELD CAMPAIGN ; AIR-QUALITY ; METEOROLOGICAL UNCERTAINTIES ; MCMA-2006/MILAGRO CAMPAIGN
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000374703000007
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5772]
专题	地球环境研究所_粉尘与环境研究室
作者单位	1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China 2.Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China 3.Molina Ctr Energy & Environm, La Jolla, CA USA 4.Paul Scherrer Inst, Lab Atmospher Chem, Villigen, Switzerland 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China 6.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Peoples R China
推荐引用方式 GB/T 7714	Cao, Junji,Zhou, Weijian,Tie, Xuexi,et al. Summertime ozone formation in Xi'an and surrounding areas, China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2016,16(7):4323-4342.
APA	Cao, Junji.,Zhou, Weijian.,Tie, Xuexi.,Liu, Suixin.,Zhang, Ting.,...&Zhang, Qiang.(2016).Summertime ozone formation in Xi'an and surrounding areas, China.ATMOSPHERIC CHEMISTRY AND PHYSICS,16(7),4323-4342.
MLA	Cao, Junji,et al."Summertime ozone formation in Xi'an and surrounding areas, China".ATMOSPHERIC CHEMISTRY AND PHYSICS 16.7(2016):4323-4342.