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Carbon-13 - Astrophysics Data System

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Last Updated: 10 July 2022

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Using Carbon-14 and Carbon-13 Measurements for Source Attribution of Atmospheric Methane in the Athabasca Oil Sands Region

The CH4 enrichments measured at the site were mostly influenced by fossil CH4 emissions from surface mining and processing plants, followed by fossil CH4 emissions from tailings ponds, and to a lesser extent by modern CH4 emissions from wetlands. Our findings support the role of tailings ponds in regional CH4 emissions and demonstrate that this method can successfully separate wetland CH4 emissions.

Source link: https://ui.adsabs.harvard.edu/abs/2021AGUFM.A35B1626G/abstract


Attributing Regional Methane Sources with Carbon-13 and Radiocarbon in Atmospheric Methane in the UK

Methane emissions between top-down and bottom-up approaches in the United Kingdom differ greatly, with top-down approaches using carbon-13 data indicating higher fossil CH4 emissions in London than bottom-up inventory estimates 1,2. We present a framework for assigning regional CH4 emissions using existing 14CH4 and 13CH4 tracers, and we assess the combined effectiveness of 14CH4 and 13CH4 tracers for separating regional sources. In areas where mixed CH4 source emissions exist, we find that 14 CH4-13CH4 slopes will most likely increase the accuracy of pollution event source attribution and CH4 emission audits. On 14CH4 in the United Kingdom, we also use the simulations to determine the potential confounding effect of 14CH4 emissions from nuclear power plants.

Source link: https://ui.adsabs.harvard.edu/abs/2021AGUFM.B25O..11S/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions