globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2014.10.035
Scopus记录号: 2-s2.0-84908398251
论文题名:
Response of the summertime ground-level ozone trend in the Chicago area to emission controls and temperature changes, 2005-2013
作者: Jing P; , Lu Z; , Xing J; , Streets D; G; , Tan Q; , O'Brien T; , Kamberos J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 99
起始页码: 630
结束页码: 640
语种: 英语
英文关键词: Chicago ; NOx and VOC emission control ; Ozone trend ; Temperature dependence of ozone
Scopus关键词: Chicago ; Ground-level ozone ; Ozone trends ; Temperature changes ; Temperature dependence ; VOC emission control ; nitric oxide ; ozone ; volatile organic compound ; air quality ; ambient air ; climate change ; concentration (composition) ; emission control ; emission inventory ; global climate ; mixing ratio ; nitrogen oxides ; ozone ; spatiotemporal analysis ; temperature effect ; air pollution control ; air temperature ; Article ; energy consumption ; environmental temperature ; humidity ; meteorological phenomena ; meteorology ; summer ; United States ; urban area ; Chicago ; Illinois ; United States
Scopus学科分类: Environmental Science: Water Science and Technology ; Earth and Planetary Sciences: Earth-Surface Processes ; Environmental Science: Environmental Chemistry
英文摘要: Despite strenuous efforts to reduce the emissions of ozone precursors such as nitrogen oxides (NOx), concentrations of ground-level ozone (O3) still often exceed the National Ambient Air Quality Standard in U.S. cities in summertime, including Chicago. Furthermore, studies have projected a future increase in O3 formation due to global climate change. This study examines the response of summertime O3 to emission controls and temperature change in the Chicago area from 2005 to 2013 by employing observations of O3, O3 precursors, and meteorological variables. We find that meteorology explains about 53% of the O3 variance in Chicago. O3 mixing ratios over Chicago are found to show no clear decline over the 2005-2013 period. The summertime ground-level O3 trend consists of a decrease of 0.08 ppb/year between 2005 and 2009 and an increase of 1.49 ppb/year between 2009 and 2013. Emissions of NOx and concentrations of NO2 have been decreasing steadily from 2005 to 2013 in the Chicago area. Concentrations of volatile organic compounds (VOCs) in Chicago, however, have more than doubled since 2009, even though emission inventories suggest that VOC emissions have decreased. We believe that O3 production in Chicago became more sensitive to VOCs starting in 2008/2009 and may have switched from being NOx-limited to VOC-limited. The warmer climate since 2008 has also contributed to the increasing ozone trend in the Chicago area. Increased attention should be paid to improving the quantification of VOC sources, enhancing the monitoring of reactive VOC concentrations, and designing VOC mitigation measures. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80549
Appears in Collections:气候变化事实与影响

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作者单位: Institute of Environmental Sustainability, Loyola University Chicago, Chicago, IL, United States; Decision and Information Sciences Division, Argonne National Laboratory, Argonne, IL, United States; U.S. Environmental Protection Agency, Research Triangle Park, NC, United States; Goddard Earth Sciences Technology and Research (GESTAR) Studies and Investigations, NASA Goddard Space Flight Center, MD, United States; Department of Mathematics and Statistics, Loyola University Chicago, Chicago, IL, United States

Recommended Citation:
Jing P,, Lu Z,, Xing J,et al. Response of the summertime ground-level ozone trend in the Chicago area to emission controls and temperature changes, 2005-2013[J]. Atmospheric Environment,2014-01-01,99
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