气候变化领域集成服务门户(CCPortal): Impacts of Emissions of C2-C5 Alkanes From the U.S. Oil and Gas Sector on Ozone and Other Secondary Species

CCPortal

DOI	10.1029/2019JD031935
	Impacts of Emissions of C2-C5 Alkanes From the U.S. Oil and Gas Sector on Ozone and Other Secondary Species
	Tzompa-Sosa Z.A.; Fischer E.V.
发表日期	2021
ISSN	2169897X
卷号	126 期号:1
英文摘要	Inside many U.S. oil and gas-producing regions, the oil and gas sector dominates local anthropogenic emission fluxes of C2-C5 alkanes. Here, we present a detailed analysis of the impact of these emissions on secondary species production over the continental United States using the GEOS-Chem model. Oil- and gas-producing areas in the central United States show the highest summertime surface ozone (O3) enhancements due to oil and gas C2-C5 alkane emissions. The Colorado Front Range is the most impacted 8-hr O3 non-attainment area in the United States with 3-hr daytime instantaneous O3 enhancements >4 ppb. From three selected non-attainment areas, the Colorado Front Range has (1) the lowest monthly mean VOC reactivity (1.5 s−1); (2) the highest percent contribution of oil and gas sources (52%) to calculated VOC reactivity; and (3) the largest relative increases in PAN (peroxyacetyl nitrate), PPN (peroxypropionyl nitrate), and >C4 alkyl nitrates. Enhanced abundances of PAN, PPN, and >C4 alkyl nitrates have the potential to perturb remote O3 production through increased NOx export to remote regions via PAN chemistry. Globally, simulated C2-C5 alkane emissions from the U.S. oil and gas sector contribute 0.5 Tg (~0.17%) to the tropospheric O3 burden with a ~0.27% contribution in the Northern Hemisphere. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	alkanes; oil and gas; ozone; PAN; PPN; secondary species
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185565
作者单位	Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
推荐引用方式 GB/T 7714	Tzompa-Sosa Z.A.,Fischer E.V.. Impacts of Emissions of C2-C5 Alkanes From the U.S. Oil and Gas Sector on Ozone and Other Secondary Species[J],2021,126(1).
APA	Tzompa-Sosa Z.A.,&Fischer E.V..(2021).Impacts of Emissions of C2-C5 Alkanes From the U.S. Oil and Gas Sector on Ozone and Other Secondary Species.Journal of Geophysical Research: Atmospheres,126(1).
MLA	Tzompa-Sosa Z.A.,et al."Impacts of Emissions of C2-C5 Alkanes From the U.S. Oil and Gas Sector on Ozone and Other Secondary Species".Journal of Geophysical Research: Atmospheres 126.1(2021).