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Changes in Atmospheric Butanes and Pentanes and Their Isomeric Ratios in the Continental United States
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2018
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Source: Journal of Geophysical Research: Atmospheres, 123(7), 3772-3790
[PDF-2.03 MB]
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Journal Title:Journal of Geophysical Research: Atmospheres
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Description:Nonmethane hydrocarbons have been used as tracers in research on emissions and atmospheric oxidation chemistry. This research investigates source region mixing ratio trends of the nonmethane hydrocarbons i-butane, n-butane, i-pentane, and n-pentane, and the ( i/n) isomeric ratios of these compounds between 2001 and 2015. Data collected at Photochemical Assessment Monitoring Stations, mandated by the U.S. Environmental Protection Agency in ozone nonattainment areas, and data collected at Global Greenhouse Gas Reference Network sites within the National Oceanic and Atmospheric Administrationnetwork, and analyzed at the Institute of Arctic and Alpine Research at the University of Colorado-Boulder, were examined. Among all considered species, linear regression analyses on concentration time series had
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Source:Journal of Geophysical Research: Atmospheres, 123(7), 3772-3790
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ISSN:2169-897X;2169-8996;
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Rights Information:Other
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