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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 (IF:5.668[JCR-2018],6.201[5-Year]) |
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. |
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