Continuous CH4 and δ13CH4 measurements in London demonstrate under-reported natural gas leakage

Saboya, Eric; Zazzeri, Giulia; Graven, Heather; Manning, Alistair J.; Englund Michel, Sylvia

doi:https://doi.org/10.5194/acp-22-3595-2022

Articles | Volume 22, issue 5

https://doi.org/10.5194/acp-22-3595-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-3595-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 5

Research article

|

17 Mar 2022

Research article |

| 17 Mar 2022

Continuous CH₄ and δ¹³CH₄ measurements in London demonstrate under-reported natural gas leakage

Eric Saboya, Giulia Zazzeri, Heather Graven, Alistair J. Manning, and Sylvia Englund Michel

Supplement

https://doi.org/10.5194/acp-22-3595-2022-supplement

Data sets

Graven Laboratory: Atmospheric methane measurements and simulations H. Graven, G. Zazzeri, and E. Saboya https://doi.org/10.5281/zenodo.6044538

Emissions Database for Global Atmospheric Research, version v4.3.2 part I Greenhouse gases (gridmaps) G. Janssens-Maenhout, M. Crippa, D. Guizzardi, M. Muntean, and E. Schaaf http://data.europa.eu/89h/jrc-edgar-edgar_v432_ghg_gridmaps

The UK National Atmospheric Emissions Inventory NAEI https://naei.beis.gov.uk/data/mapping-archive

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Short summary

Continuous measurements of atmospheric methane concentrations and its carbon-13 isotope have been made in central London since early 2018. These measurements were used to evaluate methane emissions reported in global and UK-specific emission inventories for the London area. Compared to atmospheric methane measurements from March 2018 to October 2020, both inventories are under-reporting natural gas leakage for the London area.