气候变化领域集成服务门户(CCPortal): Using carbon-14 and carbon-13 measurements for source attribution of atmospheric methane in the Athabasca oil sands region

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DOI	10.5194/acp-22-2121-2022
	Using carbon-14 and carbon-13 measurements for source attribution of atmospheric methane in the Athabasca oil sands region
	Gonzalez Moguel, Regina; Vogel, Felix; Ars, Sebastien; Schaefer, Hinrich; Turnbull, Jocelyn C.; Douglas, Peter M. J.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	2121
结束页码	2133
卷号	22 期号:3 页码:13
英文摘要	The rapidly expanding and energy-intensive production from the Canadian oil sands, one of the largest oil reserves globally, accounts for almost 12 % of Canada's greenhouse gas emissions according to inventories. Developing approaches for evaluating reported methane (CH4) emission is crucial for developing effective mitigation policies, but only one study has characterized CH4 sources in the Athabasca oil sands region (AOSR). We tested the use of C-14 and C-13 carbon isotope measurements in ambient CH4 from the AOSR to estimate source contributions from key regional CH4 sources: (1) tailings ponds, (2) surface mines and processing facilities, and (3) wetlands. The isotopic signatures of ambient CH4 indicate that the CH4 enrichments measured at the site were mainly influenced by fossil CH4 emissions from surface mining and processing facilities (56 +/- 18 %), followed by fossil CH4 emissions from tailings ponds (34 +/- 18 %) and to a lesser extent modern CH4 emissions from wetlands (10 +/- <1 %). Our results confirm the importance of tailings ponds in regional CH4 emissions and show that this method can successfully distinguish wetland CH4 emissions. In the future, the isotopic characterization of CH4 sources and measurements from different seasons and wind directions are needed to provide a better source attribution in the AOSR.
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:000759328900001
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/273531
作者单位	McGill University; Environment & Climate Change Canada; GNS Science - New Zealand; University of Colorado System; University of Colorado Boulder
推荐引用方式 GB/T 7714	Gonzalez Moguel, Regina,Vogel, Felix,Ars, Sebastien,et al. Using carbon-14 and carbon-13 measurements for source attribution of atmospheric methane in the Athabasca oil sands region[J],2022,22(3):13.
APA	Gonzalez Moguel, Regina,Vogel, Felix,Ars, Sebastien,Schaefer, Hinrich,Turnbull, Jocelyn C.,&Douglas, Peter M. J..(2022).Using carbon-14 and carbon-13 measurements for source attribution of atmospheric methane in the Athabasca oil sands region.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(3),13.
MLA	Gonzalez Moguel, Regina,et al."Using carbon-14 and carbon-13 measurements for source attribution of atmospheric methane in the Athabasca oil sands region".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.3(2022):13.