气候变化领域集成服务门户(CCPortal): Urban inland wintertime N2O5 and ClNO2 influenced by snow-covered ground, air turbulence, and precipitation

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DOI	10.5194/acp-22-2553-2022
	Urban inland wintertime N2O5 and ClNO2 influenced by snow-covered ground, air turbulence, and precipitation
	Kulju, Kathryn D.; McNamara, Stephen M.; Chen, Qianjie; Kenagy, Hannah S.; Edebeli, Jacinta; Fuentes, Jose D.; Bertman, Steven B.; Pratt, Kerri A.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	2553
结束页码	2568
卷号	22 期号:4 页码:16
英文摘要	The atmospheric multiphase reaction of dinitrogen pentoxide (N2O5) with chloride-containing aerosol particles produces nitryl chloride (ClNO2), which has been observed across the globe. The photolysis of ClNO2 produces chlorine radicals and nitrogen dioxide (NO2), which alter pollutant fates and air quality. However, the effects of local meteorology on near-surface ClNO2 production are not yet well understood, as most observational and modeling studies focus on periods of clear conditions. During a field campaign in Kalamazoo, Michigan, from January-February 2018, N2O5 and ClNO2 were measured using chemical ionization mass spectrometry, with simultaneous measurements of atmospheric particulate matter and meteorological parameters. We examine the impacts of atmospheric turbulence, precipitation (snow, rain) and fog, and ground cover (snowcovered and bare ground) on the abundances of ClNO2 and N2O5. N2O5 mole ratios were lowest during periods of lower turbulence and were not statistically significantly different between snow-covered and bare ground. In contrast, ClNO2 mole ratios were highest, on average, over snow-covered ground, due to saline snowpack ClNO2 production. Both N2O5 and ClNO2 mole ratios were lowest, on average, during rainfall and fog because of scavenging, with N2O5 scavenging by fog droplets likely contributing to observed increased particulate nitrate concentrations. These observations, specifically those during active precipitation and with snow-covered ground, highlight important processes, including N2O5 and ClNO2 wet scavenging, fog nitrate production, and snowpack ClNO2 production, that govern the variability in observed atmospheric chlorine and nitrogen chemistry and are missed when considering only clear conditions.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000763276100001
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/273268
作者单位	University of Michigan System; University of Michigan; Swiss Federal Institutes of Technology Domain; Paul Scherrer Institute; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Western Michigan University; University of Michigan System; University of Michigan; Hong Kong Polytechnic University
推荐引用方式 GB/T 7714	Kulju, Kathryn D.,McNamara, Stephen M.,Chen, Qianjie,et al. Urban inland wintertime N2O5 and ClNO2 influenced by snow-covered ground, air turbulence, and precipitation[J],2022,22(4):16.
APA	Kulju, Kathryn D..,McNamara, Stephen M..,Chen, Qianjie.,Kenagy, Hannah S..,Edebeli, Jacinta.,...&Pratt, Kerri A..(2022).Urban inland wintertime N2O5 and ClNO2 influenced by snow-covered ground, air turbulence, and precipitation.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(4),16.
MLA	Kulju, Kathryn D.,et al."Urban inland wintertime N2O5 and ClNO2 influenced by snow-covered ground, air turbulence, and precipitation".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.4(2022):16.