气候变化领域集成服务门户(CCPortal): Ground-based investigation of HOx and ozone chemistry in biomass burning plumes in rural Idaho

CCPortal

DOI	10.5194/acp-22-4909-2022
	Ground-based investigation of HOx and ozone chemistry in biomass burning plumes in rural Idaho
	Lindsay, Andrew J.; Anderson, Daniel C.; Wernis, Rebecca A.; Liang, Yutong; Goldstein, Allen H.; Herndon, Scott C.; Roscioli, Joseph R.; Dyroff, Christoph; Fortner, Ed C.; Croteau, Philip L.; Majluf, Francesca; Krechmer, Jordan E.; Yacovitch, Tara I.; Knighton, Walter B.; Wood, Ezra C.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	4909
结束页码	4928
卷号	22 期号:7 页码:20
英文摘要	Ozone (O-3), a potent greenhouse gas that is detrimental to human health, is typically found in elevated concentrations within biomass burning (BB) smoke plumes. The radical species OH, HO2, and RO2 (known collectively as ROx) have central roles in the formation of secondary pollutants including O-3 but are poorly characterized for BB plumes. We present measurements of total peroxy radical concentrations ([XO2] + [RO2]) and additional trace-gas and particulate matter measurements from McCall, Idaho, during August 2018. There were five distinct periods in which BB smoke impacted this site. During BB events, O-3 concentrations were enhanced, evident by ozone enhancement ratios (Delta O-3/Delta CO) that ranged up to 0.06 ppbv ppbv(-1). [XO2] was similarly elevated during some BB events. Overall, instantaneous ozone production rates (P (O-3)) were minimally impacted by the presence of smoke as [NOx] enhancements were minimal Measured XO2 concentrations were compared to zero-dimensional box modeling results to evaluate the Master Chemical Mechanism (MCM) and GEOS-Chem mechanisms overall and during periods of BB influence. The models consistently overestimated XO2 with the base MCM and GEOS -Chem XO2 predictions high by an average of 28 % and 20 %, respectively. One period of BB influence had distinct measured enhancements of 15 pptv XO2 that were not reflected in the model output, likely due to the presence of unmeasured HOx sources. To the best of our knowledge, this is the first BB study featuring peroxy radical measurements.
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:000781905600001
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/273649
作者单位	Drexel University; University of California System; University of California Berkeley; University of California System; University of California Berkeley; Aerodyne Research; Montana State University System; Montana State University Bozeman; University System of Maryland; University of Maryland Baltimore County; National Aeronautics & Space Administration (NASA); NASA Goddard Space Flight Center
推荐引用方式 GB/T 7714	Lindsay, Andrew J.,Anderson, Daniel C.,Wernis, Rebecca A.,et al. Ground-based investigation of HOx and ozone chemistry in biomass burning plumes in rural Idaho[J],2022,22(7):20.
APA	Lindsay, Andrew J..,Anderson, Daniel C..,Wernis, Rebecca A..,Liang, Yutong.,Goldstein, Allen H..,...&Wood, Ezra C..(2022).Ground-based investigation of HOx and ozone chemistry in biomass burning plumes in rural Idaho.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(7),20.
MLA	Lindsay, Andrew J.,et al."Ground-based investigation of HOx and ozone chemistry in biomass burning plumes in rural Idaho".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.7(2022):20.