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• W3043456213 endingPage "117783" @default.
• W3043456213 startingPage "117783" @default.
• W3043456213 abstract "The National Park Service is tasked with protecting the lands it oversees, including from impacts from air pollutants. While ozone is regularly monitored in many parks across the United States, precursors to ozone formation are not routinely measured. In this work we characterize volatile organic compounds (VOCs) at four national parks in the southwestern United States: Carlsbad Caverns (CAVE), Great Basin (GRBA), Grand Canyon (GRCA), and Joshua Tree (JOTR). Whole air samples were collected for VOC analysis for five months (mid-April through mid-September) in 2017. Samples were collected from 3 p.m. to 5 p.m. local time, corresponding approximately to the time of expected peak ozone concentrations, and were analyzed using gas chromatography for a variety of compounds including alkanes, alkenes, aromatics, biogenics, and alkyl nitrates. Among the four parks, the total measured VOC mixing ratio was greatest at CAVE, mostly due to an abundance of light alkanes (on average 94% of all VOCs measured) from oil and gas sources. VOC concentrations at the other three parks were similar to each other and approximately 7–10 times lower than at CAVE. While VOC sources varied across sites, VOC-OH reactivity was dominated by biogenic compounds at all sites except CAVE, which had similar contributions from biogenics and from light alkanes. JOTR had the highest levels of ozone, and the highest concentrations of biogenic VOCs among the parks studied. Back trajectory analysis suggests that the high levels of ozone occurred when air flow came from the west, in the direction of the greater Los Angeles area. The two parks most removed from oil and gas and urban sources, GRBA and GRCA, had the lowest concentrations of total VOCs, and were likely influenced by long range transport of pollutants. To better characterize source influences at the park with the highest VOC concentrations, intensive measurements were conducted in and around CAVE for one week in September 2017. These measurements showed an oil and gas influence throughout the region and indicated that the whole air samples collected over the five-month study did not capture the full range of VOC mixing ratios present at other times of the day." @default.
• W3043456213 created "2020-07-23" @default.
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• W3043456213 date "2020-10-01" @default.
• W3043456213 modified "2023-10-14" @default.
• W3043456213 title "Volatile organic compounds and ozone at four national parks in the southwestern United States" @default.
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• W3043456213 cites W1903012642 @default.
• W3043456213 cites W1967598287 @default.
• W3043456213 cites W1975905253 @default.
• W3043456213 cites W1976920812 @default.
• W3043456213 cites W1981205119 @default.
• W3043456213 cites W1982139112 @default.
• W3043456213 cites W1983862566 @default.
• W3043456213 cites W1986980302 @default.
• W3043456213 cites W1988546432 @default.
• W3043456213 cites W2002262909 @default.
• W3043456213 cites W2014025252 @default.
• W3043456213 cites W2018222203 @default.
• W3043456213 cites W2019442711 @default.
• W3043456213 cites W2030834523 @default.
• W3043456213 cites W2031691972 @default.
• W3043456213 cites W2032686116 @default.
• W3043456213 cites W2037571592 @default.
• W3043456213 cites W2044083327 @default.
• W3043456213 cites W2044724516 @default.
• W3043456213 cites W2045484967 @default.
• W3043456213 cites W2048954684 @default.
• W3043456213 cites W2053741216 @default.
• W3043456213 cites W2057144126 @default.
• W3043456213 cites W2062025716 @default.
• W3043456213 cites W2063369264 @default.
• W3043456213 cites W2065087680 @default.
• W3043456213 cites W2067209936 @default.
• W3043456213 cites W2076335579 @default.
• W3043456213 cites W2077191941 @default.
• W3043456213 cites W2079743517 @default.
• W3043456213 cites W2086314571 @default.
• W3043456213 cites W2095169149 @default.
• W3043456213 cites W2096650579 @default.
• W3043456213 cites W2101845599 @default.
• W3043456213 cites W2106976345 @default.
• W3043456213 cites W2111758284 @default.
• W3043456213 cites W2113018399 @default.
• W3043456213 cites W2116608634 @default.
• W3043456213 cites W2119946860 @default.
• W3043456213 cites W2122689441 @default.
• W3043456213 cites W2124904730 @default.
• W3043456213 cites W2130050908 @default.
• W3043456213 cites W2132835654 @default.
• W3043456213 cites W214132746 @default.
• W3043456213 cites W2141838531 @default.
• W3043456213 cites W2144304061 @default.
• W3043456213 cites W2157983471 @default.
• W3043456213 cites W2165258611 @default.
• W3043456213 cites W2209260785 @default.
• W3043456213 cites W2323679184 @default.
• W3043456213 cites W2327777796 @default.
• W3043456213 cites W2432489147 @default.
• W3043456213 cites W2461005879 @default.
• W3043456213 cites W2475470419 @default.
• W3043456213 cites W2510511451 @default.
• W3043456213 cites W2514479037 @default.
• W3043456213 cites W2560292447 @default.
• W3043456213 cites W2566921109 @default.
• W3043456213 cites W2587123157 @default.
• W3043456213 cites W2588460766 @default.
• W3043456213 cites W2607350314 @default.
• W3043456213 cites W2607395021 @default.
• W3043456213 cites W2740028073 @default.
• W3043456213 cites W2765925730 @default.
• W3043456213 cites W2766997064 @default.
• W3043456213 cites W2772898641 @default.
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• W3043456213 cites W2793277649 @default.
• W3043456213 cites W2801799411 @default.
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• W3043456213 cites W2982487551 @default.
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• W3043456213 doi "https://doi.org/10.1016/j.atmosenv.2020.117783" @default.
• W3043456213 hasPublicationYear "2020" @default.
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