Radiocarbon measurements reveal underestimated fossil CH4 and CO2 emissions in London
Radiocarbon (14C) is a powerful tracer of fossil emissions because fossil fuels are entirely depleted in 14C, but observations of 14CO2 and especially 14CH4 in urban regions are sparse. We present the first observations of 14C in both methane (CH4) and carbon dioxide (CO2) in an urban area (London)...
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| Main Authors: | , , , , , , , , |
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| Format: | Article (Journal) Editorial |
| Language: | English |
| Published: |
16 August 2023
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| In: |
Geophysical research letters
Year: 2023, Volume: 50, Issue: 15, Pages: 1-8 |
| ISSN: | 1944-8007 |
| DOI: | 10.1029/2023GL103834 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1029/2023GL103834 Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1029/2023GL103834 
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| Author Notes: | Giulia Zazzeri, Heather Graven, Xiaomei Xu, Eric Saboya, Liam Blyth, Alistair J. Manning, Hannah Chawner, Dien Wu, and Samuel Hammer |
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| 520 | |a Radiocarbon (14C) is a powerful tracer of fossil emissions because fossil fuels are entirely depleted in 14C, but observations of 14CO2 and especially 14CH4 in urban regions are sparse. We present the first observations of 14C in both methane (CH4) and carbon dioxide (CO2) in an urban area (London) using a recently developed sampling system. We find that the fossil fraction of CH4 and the atmospheric concentration of fossil CO2 are consistently higher than simulated values using the atmospheric dispersion model NAME coupled with emission inventories. ... | ||
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