Articles | Volume 16, issue 16
https://doi.org/10.5194/acp-16-10543-2016
https://doi.org/10.5194/acp-16-10543-2016
Research article
 | 
24 Aug 2016
Research article |  | 24 Aug 2016

Spatial and temporal variability of urban fluxes of methane, carbon monoxide and carbon dioxide above London, UK

Carole Helfter, Anja H. Tremper, Christoforos H. Halios, Simone Kotthaus, Alex Bjorkegren, C. Sue B. Grimmond, Janet F. Barlow, and Eiko Nemitz

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There are relatively few long-term, direct measurements of pollutant emissions in urban settings. We present over 3 years of measurements of fluxes of CO, CO2 and CH4, study their respective temporal and spatial dynamics and offer an independent verification of the London Atmospheric Emissions Inventory. CO and CO2 were strongly controlled by traffic and well characterised by the inventory whilst measured CH4 was two-fold larger and linked to natural gas usage and perhaps biogenic sources.
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