气候变化领域集成服务门户(CCPortal): Contributions to OH reactivity from unexplored volatile organic compounds measured by PTR-ToF-MS - A case study in a suburban forest of the Seoul metropolitan area during the Korea-United States Air Quality Study (KORUS-AQ) 2016

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DOI	10.5194/acp-21-6331-2021
	Contributions to OH reactivity from unexplored volatile organic compounds measured by PTR-ToF-MS - A case study in a suburban forest of the Seoul metropolitan area during the Korea-United States Air Quality Study (KORUS-AQ) 2016
	Sanchez D.; Seco R.; Gu D.; Guenther A.; Mak J.; Lee Y.; Kim D.; Ahn J.; Blake D.; Herndon S.; Jeong D.; T. Sullivan J.; McGee T.; Park R.; Kim S.
发表日期	2021
ISSN	1680-7316
起始页码	6331
结束页码	6345
卷号	21 期号:8
英文摘要	We report OH reactivity observations by a chemical ionization mass spectrometer–comparative reactivity method (CIMS-CRM) instrument in a suburban forest of the Seoul metropolitan area (SMA) during the Korea–United States Air Quality Study (KORUS-AQ 2016) from mid-May to mid-June of 2016. A comprehensive observational suite was deployed to quantify reactive trace gases inside of the forest canopy including a high-resolution proton transfer reaction time-of-flight mass spectrometer (PTR-ToF-MS). An average OH reactivity of 30:75:1 s1 was observed, while the OH reactivity calculated from CO, NOCNO2 (NOx ), ozone (O3), sulfur dioxide (SO2), and 14 volatile organic compounds (VOCs) was 11:81:0 s1. An analysis of 346 peaks from the PTR-ToF-MS accounted for an additional 6:02:2 s1 of the total measured OH reactivity, leaving 42.0% missing OH reactivity. A series of analyses indicate that the missing OH reactivity most likely comes from VOC oxidation products of both biogenic and anthropogenic origin. © 2021 EDP Sciences. All rights reserved.
语种	英语
scopus关键词	air quality; atmospheric chemistry; concentration (composition); hydroxyl radical; mass spectrometry; metropolitan area; volatile organic compound; Seoul [Seoul (ADS)]; Seoul [South Korea]; South Korea
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246940
作者单位	Department of Earth System Science, University of California, Irvine, CA 92697, United States; School of Marine and Atmospheric Sciences, Stony Brooke University, Stony Brook, NY 11794, United States; National Institute of Environmental Research, Inchoen, 22689, South Korea; Department of Chemistry, University of California, Irvine, CA 92697, United States; Aerodyne Research Inc., Billerica, MA 01821, United States; Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea; Now At: Terrestrial Ecology Section, Department of Biology, University of Copenhagen, Copenhagen, Denmark; Center for Permafrost (CENPERM), Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark; Division of Environment and Sustainability, Hong Kong University of Science and Technology, Hong Kong
推荐引用方式 GB/T 7714	Sanchez D.,Seco R.,Gu D.,et al. Contributions to OH reactivity from unexplored volatile organic compounds measured by PTR-ToF-MS - A case study in a suburban forest of the Seoul metropolitan area during the Korea-United States Air Quality Study (KORUS-AQ) 2016[J],2021,21(8).
APA	Sanchez D..,Seco R..,Gu D..,Guenther A..,Mak J..,...&Kim S..(2021).Contributions to OH reactivity from unexplored volatile organic compounds measured by PTR-ToF-MS - A case study in a suburban forest of the Seoul metropolitan area during the Korea-United States Air Quality Study (KORUS-AQ) 2016.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(8).
MLA	Sanchez D.,et al."Contributions to OH reactivity from unexplored volatile organic compounds measured by PTR-ToF-MS - A case study in a suburban forest of the Seoul metropolitan area during the Korea-United States Air Quality Study (KORUS-AQ) 2016".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.8(2021).