Articles | Volume 18, issue 11
https://doi.org/10.5194/acp-18-8203-2018
https://doi.org/10.5194/acp-18-8203-2018
Research article
 | 
13 Jun 2018
Research article |  | 13 Jun 2018

Top–down quantification of NOx emissions from traffic in an urban area using a high-resolution regional atmospheric chemistry model

Friderike Kuik, Andreas Kerschbaumer, Axel Lauer, Aurelia Lupascu, Erika von Schneidemesser, and Tim M. Butler

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Short summary
Modelled NOx concentrations are often underestimated compared to observations, and measurement studies show that reported NOx emissions in urban areas are often too low when the contribution from traffic is largest. This modelling study quantifies the underestimation of traffic NOx emissions in the Berlin–Brandenburg and finds that they are underestimated by ca. 50 % in the core urban area. More research is needed in order to more accurately understand real-world NOx emissions from traffic.
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