气候变化领域集成服务门户(CCPortal): Unexplored volatile organic compound emitted from petrochemical facilities: Implications for ozone production and atmospheric chemistry

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DOI	10.5194/acp-21-11505-2021
	Unexplored volatile organic compound emitted from petrochemical facilities: Implications for ozone production and atmospheric chemistry
	Sarkar C.; Wong G.; Mielnik A.; Nagalingam S.; Gross N.J.; Guenther A.B.; Lee T.; Park T.; Ban J.; Kang S.; Park J.-S.; Ahn J.; Kim D.; Kim H.; Choi J.; Seo B.-K.; Kim J.-H.; Kim J.-H.; Park S.B.; Kim S.
发表日期	2021
ISSN	1680-7316
起始页码	11505
结束页码	11518
卷号	21 期号:15
英文摘要	A compound was observed using airborne proton transfer reaction time-of-flight mass spectrometry (PTRTOF-MS) measurements in the emission plumes from the Daesan petrochemical facility in South Korea. The compound was detected at m=z 43.018 on the PTR-TOF-MS and was tentatively identified as ketene, a rarely measured reactive volatile organic compound (VOC). Estimated ketene mixing ratios as high as 50 ppb (parts per billion) were observed in the emission plumes. Emission rates of ketene from the facility were estimated using a horizontal advective flux approach and ranged from 84-316 kg h-1. These emission rates were compared to the emission rates of major known VOCs such as benzene, toluene, and acetaldehyde. Significant correlations (r2 0.7) of ketene with methanol, acetaldehyde, benzene, and toluene were observed for the peak emissions, indicating commonality of emission sources. The calculated average ketene OH reactivity for the emission plumes over Daesan ranged from 3.33-7.75 s-1, indicating the importance of the quantification of ketene to address missing OH reactivity in the polluted environment. The calculated average O3 production potential for ketene ranged from 2.98-6.91 ppb h-1. Our study suggests that ketene, or any possible VOC species detected at m=z 43.018, has the potential to significantly influence local photochemistry, and therefore, further studies focusing on the photooxidation and atmospheric fate of ketene through chamber studies are required to improve our current understanding of VOC OH reactivity and, hence, tropospheric O3 production. © 2021 Copernicus GmbH. All rights reserved.
语种	英语
scopus关键词	atmospheric chemistry; mixing ratio; ozone; petrochemistry; photooxidation; volatile organic compound; 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/246689
作者单位	Department of Earth System Science, University of California Irvine, Irvine, CA 92697, United States; Department of Environmental Science, Hankuk University of Foreign Studies, Yongin, 17035, South Korea; Air Quality Research Division, National Institute of Environmental Research, Incheon, 22689, South Korea; Institute of Environmental Research, Hanseo University, Seosan-si, South Korea; Apm Engineering Co. Ltd., Bucheon-si, South Korea
推荐引用方式 GB/T 7714	Sarkar C.,Wong G.,Mielnik A.,et al. Unexplored volatile organic compound emitted from petrochemical facilities: Implications for ozone production and atmospheric chemistry[J],2021,21(15).
APA	Sarkar C..,Wong G..,Mielnik A..,Nagalingam S..,Gross N.J..,...&Kim S..(2021).Unexplored volatile organic compound emitted from petrochemical facilities: Implications for ozone production and atmospheric chemistry.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(15).
MLA	Sarkar C.,et al."Unexplored volatile organic compound emitted from petrochemical facilities: Implications for ozone production and atmospheric chemistry".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.15(2021).