气候变化领域集成服务门户(CCPortal): Urban core-downwind differences and relationships related to ozone production in a major urban area in Texas

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DOI	10.1016/j.atmosenv.2021.118624
	Urban core-downwind differences and relationships related to ozone production in a major urban area in Texas
	Guo F.; Bui A.A.T.; Schulze B.C.; Yoon S.; Shrestha S.; Wallace H.W.; Sakai Y.; Actkinson B.W.; Erickson M.H.; Alvarez S.; Sheesley R.; Usenko S.; Flynn J.; Griffin R.J.
发表日期	2021
ISSN	1352-2310
卷号	262
英文摘要	San Antonio, the second-most populous city in Texas and the seventh-most populous city in the United States (US), has been designated a marginal non-attainment area by the US Environmental Protection Agency with respect to the 2015 ozone (O3) National Ambient Air Quality Standard. While stationary air quality monitoring sites are operated in the region by the Texas Commission on Environmental Quality (TCEQ), there are limited in situ field measurements for O3 and its precursors in the urban core. To better understand O3 dynamics in San Antonio, a suite of meteorological and gas instruments was deployed during May 2017. We incorporate field measurements from two campaign sites and one TCEQ stationary monitoring site into a zero-dimensional O3 model to characterize the local formation and destruction rates of O3, hydroxyl radical (OH) reactivity of volatile organic compounds (VOCs), O3 production efficiency, and O3 formation regime in the urban core and directly downwind of San Antonio. Upwind/downwind differences indicate the importance of photochemical processing of VOCs with carbon-carbon double bonds. San Antonio was mostly in a nitrogen oxide (NOX)-sensitive regime throughout the daytime during the campaign period, with O3 formation peaking at noon in the city center and early afternoon at the downwind region. Formaldehyde (HCHO), isoprene, and alkenes dominated VOC reactivity, with alkenes and isoprene from San Antonio's core (upwind) likely contributing to the downwind formation of HCHO and enhancing its OH reactivity. However, their direct impact on downwind O3 production was not observed. Model results suggest further strengthening NOX emission controls to decrease O3 formation in San Antonio. © 2021 Elsevier Ltd
关键词	Nitrogen oxides Ozone production San Antonio VOC reactivity
语种	英语
scopus关键词	Air quality; Carbon; Environmental Protection Agency; Isoprene; Olefins; Volatile organic compounds; Field measurement; Hydroxyl radicals; Monitoring sites; Ozone production; San Antonio; Texas Commission on Environmental Quality; Urban areas; Urban core; Volatile organic compound reactivity; Volatile organics; Nitrogen oxides; acetaldehyde; acetone; alkane; alkene; formaldehyde; hydroxyl radical; isoprene; nitrogen dioxide; nitrogen oxide; ozone; volatile organic compound; air quality; hydroxyl radical; ozone; spatiotemporal analysis; suburban area; urban area; volatile organic compound; Article; circadian rhythm; oxidation; photooxidation; solar radiation; Texas; time series analysis; urban area; San Antonio; Texas; United States
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248290
作者单位	Department of Civil and Environmental Engineering, Rice University, Houston, TX, United States; Department of Environmental Science and Engineering, California Institute of Technology, Pasadena, CA, United States; Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, United States; Department of Environmental Science, Baylor University, Waco, TX, United States; Washington State Department of Ecology, Lacey, WA, United States; Department of Systems Innovation, University of Tokyo, Tokyo, Japan; TerraGraphics Environmental Engineering, Pasco, WA, United States; Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, United States
推荐引用方式 GB/T 7714	Guo F.,Bui A.A.T.,Schulze B.C.,et al. Urban core-downwind differences and relationships related to ozone production in a major urban area in Texas[J],2021,262.
APA	Guo F..,Bui A.A.T..,Schulze B.C..,Yoon S..,Shrestha S..,...&Griffin R.J..(2021).Urban core-downwind differences and relationships related to ozone production in a major urban area in Texas.ATMOSPHERIC ENVIRONMENT,262.
MLA	Guo F.,et al."Urban core-downwind differences and relationships related to ozone production in a major urban area in Texas".ATMOSPHERIC ENVIRONMENT 262(2021).