Articles | Volume 21, issue 5
Atmos. Chem. Phys., 21, 4007–4023, 2021
Atmos. Chem. Phys., 21, 4007–4023, 2021

Research article 17 Mar 2021

Research article | 17 Mar 2021

A comparison of long-term trends in observations and emission inventories of NOx

Elena Macdonald et al.

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Cited articles

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Beevers, S. D., Westmoreland, E., de Jong, M. C., Williams, M. L., and Carslaw, D. C.: Trends in NOx and NO2 emissions from road traffic in Great Britain, Atmos. Environ., 54, 107–116,, 2012. a, b, c, d, e, f, g
Bigazzi, A. Y. and Rouleau, M.: Can traffic management strategies improve urban air quality? A review of the evidence, J. Transp. Health, 7, 111–124,, 2017. a
Short summary
NO2 limit values are still regularly exceeded in many European cities despite decreasing emissions. Measurements of NOx concentrations from stations across Europe were systematically analysed to assess long-term changes observed in urban areas. We compared trends in concentration increments to trends in total and traffic emissions to find potential discrepancies. The results can help in evaluating inaccuracies in emission inventories and in improving spatial imbalances in data availability.
Final-revised paper