干旱区生态环境知识资源中心(Arid): Investigating ground-level ozone pollution in semi-arid and arid regions of Arizona using WRF-Chem v4.4 modeling

Arid

DOI	10.5194/gmd-17-4331-2024
	Investigating ground-level ozone pollution in semi-arid and arid regions of Arizona using WRF-Chem v4.4 modeling
	Guo, Yafang; Roychoudhury, Chayan; Mirrezaei, Mohammad Amin; Kumar, Rajesh; Sorooshian, Armin; Arellano, Avelino F.
通讯作者	Guo, YF
来源期刊	GEOSCIENTIFIC MODEL DEVELOPMENT
ISSN	1991-959X
EISSN	1991-9603
出版年	2024
卷号	17 期号:10 页码:4331-4353
英文摘要	Ground-level ozone (O 3 ) pollution is a persistent environmental concern, even in regions that have made efforts to reduce emissions. This study focuses on the state of Arizona, which has experienced elevated O 3 concentrations over past decades and contains two non-attainment areas as designated by the U.S. Environmental Protection Agency. Using the Weather Research and Forecasting with Chemistry (WRF-Chem) model, we examine O 3 levels in the semi-arid and arid regions of Arizona. Our analysis focuses on the month of June between 2017 and 2021, a period characterized by high O 3 levels before the onset of the North American Monsoon (NAM). Our evaluation of the WRF-Chem model against surface Air Quality System (AQS) observations reveals that the model adeptly captures the diurnal variation of hourly O 3 levels and the episodes of O 3 exceedance through the maximum daily 8 h average (MDA8) O 3 concentrations. However, the model tends to overestimate surface NO 2 concentrations, particularly during nighttime hours. Among the three cities studied, Phoenix (PHX) and Tucson (TUS) exhibit a negative bias in both hourly and MDA8 O 3 levels, while Yuma demonstrates a relatively large positive bias. The simulated mean hourly and MDA8 O 3 concentrations in Phoenix are 44.6 and 64.7 parts per billion (ppb), respectively, compared to observed values of 47.5 and 65.7 ppb, resulting in mean negative biases of - 2.9 and - 1.0 ppb, respectively.Furthermore, the analysis of the simulated ratio of formaldehyde (HCHO) to NO 2 ( HCHO / NO 2 ; FNR), reveals interesting insights of the sensitivity of O 3 to its precursors. In Phoenix, the FNR varies from a VOC (volatile organic compound)-limited regime in the most populated areas to a transition between VOC-limited and NO x -limited regimes throughout the metro area, with an average FNR of 1.15. In conclusion, this study sheds light on the persistent challenge of ground-level O 3 pollution in semi-arid and arid regions, using the state of Arizona as a case study.
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001230197000001
WOS关键词	TROPOSPHERIC OZONE ; SURFACE OZONE ; AIR-QUALITY ; CAM-CHEM ; EMISSIONS ; CHEMISTRY ; CLIMATE ; CHINA ; ATTRIBUTION ; PRECURSORS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403961
推荐引用方式 GB/T 7714	Guo, Yafang,Roychoudhury, Chayan,Mirrezaei, Mohammad Amin,et al. Investigating ground-level ozone pollution in semi-arid and arid regions of Arizona using WRF-Chem v4.4 modeling[J],2024,17(10):4331-4353.
APA	Guo, Yafang,Roychoudhury, Chayan,Mirrezaei, Mohammad Amin,Kumar, Rajesh,Sorooshian, Armin,&Arellano, Avelino F..(2024).Investigating ground-level ozone pollution in semi-arid and arid regions of Arizona using WRF-Chem v4.4 modeling.GEOSCIENTIFIC MODEL DEVELOPMENT,17(10),4331-4353.
MLA	Guo, Yafang,et al."Investigating ground-level ozone pollution in semi-arid and arid regions of Arizona using WRF-Chem v4.4 modeling".GEOSCIENTIFIC MODEL DEVELOPMENT 17.10(2024):4331-4353.