Articles | Volume 21, issue 5
https://doi.org/10.5194/acp-21-4007-2021
https://doi.org/10.5194/acp-21-4007-2021
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, Noelia Otero, and Tim Butler

Related authors

What controls the tail behaviour of flood series: rainfall or runoff generation?
Elena Macdonald, Bruno Merz, Björn Guse, Viet Dung Nguyen, Xiaoxiang Guan, and Sergiy Vorogushyn
Hydrol. Earth Syst. Sci., 28, 833–850, https://doi.org/10.5194/hess-28-833-2024,https://doi.org/10.5194/hess-28-833-2024, 2024
Short summary

Related subject area

Subject: Gases | Research Activity: Atmospheric Modelling and Data Analysis | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
Interpreting Geostationary Environment Monitoring Spectrometer (GEMS) geostationary satellite observations of the diurnal variation in nitrogen dioxide (NO2) over East Asia
Laura Hyesung Yang, Daniel J. Jacob, Ruijun Dang, Yujin J. Oak, Haipeng Lin, Jhoon Kim, Shixian Zhai, Nadia K. Colombi, Drew C. Pendergrass, Ellie Beaudry, Viral Shah, Xu Feng, Robert M. Yantosca, Heesung Chong, Junsung Park, Hanlim Lee, Won-Jin Lee, Soontae Kim, Eunhye Kim, Katherine R. Travis, James H. Crawford, and Hong Liao
Atmos. Chem. Phys., 24, 7027–7039, https://doi.org/10.5194/acp-24-7027-2024,https://doi.org/10.5194/acp-24-7027-2024, 2024
Short summary
An intercomparison of satellite, airborne, and ground-level observations with WRF–CAMx simulations of NO2 columns over Houston, Texas, during the September 2021 TRACER-AQ campaign
M. Omar Nawaz, Jeremiah Johnson, Greg Yarwood, Benjamin de Foy, Laura Judd, and Daniel L. Goldberg
Atmos. Chem. Phys., 24, 6719–6741, https://doi.org/10.5194/acp-24-6719-2024,https://doi.org/10.5194/acp-24-6719-2024, 2024
Short summary
Interannual variability of summertime formaldehyde (HCHO) vertical column density and its main drivers at northern high latitudes
Tianlang Zhao, Jingqiu Mao, Zolal Ayazpour, Gonzalo González Abad, Caroline R. Nowlan, and Yiqi Zheng
Atmos. Chem. Phys., 24, 6105–6121, https://doi.org/10.5194/acp-24-6105-2024,https://doi.org/10.5194/acp-24-6105-2024, 2024
Short summary
The impact of multi-decadal changes in VOC speciation on urban ozone chemistry: a case study in Birmingham, United Kingdom
Jianghao Li, Alastair C. Lewis, Jim R. Hopkins, Stephen J. Andrews, Tim Murrells, Neil Passant, Ben Richmond, Siqi Hou, William J. Bloss, Roy M. Harrison, and Zongbo Shi
Atmos. Chem. Phys., 24, 6219–6231, https://doi.org/10.5194/acp-24-6219-2024,https://doi.org/10.5194/acp-24-6219-2024, 2024
Short summary
Technical note: Challenges in detecting free tropospheric ozone trends in a sparsely sampled environment
Kai-Lan Chang, Owen R. Cooper, Audrey Gaudel, Irina Petropavlovskikh, Peter Effertz, Gary Morris, and Brian C. McDonald
Atmos. Chem. Phys., 24, 6197–6218, https://doi.org/10.5194/acp-24-6197-2024,https://doi.org/10.5194/acp-24-6197-2024, 2024
Short summary

Cited articles

Amt der Oberösterreichischen Landesregierung: Mobilitätsleitbild für die Region Linz, available at: https://www.linz.at/images/mobilitaetsleitbild_kumm_steig_um.pdf (last access: 15 July 2020), 2018. a, b
Barrientos, M.: Population density, Europe, available at: https://www.indexmundi.com/map/?v=21000&r=eu&l=en (last access: 14 April 2020), 2019. a
Beevers, S. D., Carslaw, D. C., Westmoreland, E., and Mittal, H.: Air pollution and emissions trends in London, King's College London and the Institute for Transport Studies, available at: https://www.researchgate.net/publication/242635799_Air_pollution_and_emissions_trends_in_London (last access: 26 July 2020) 2009. a, b, c, d, e, f, g, h, i
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, https://doi.org/10.1016/j.atmosenv.2012.02.028, 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, https://doi.org/10.1016/j.jth.2017.08.001, 2017. a
Download
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.
Altmetrics
Final-revised paper
Preprint