Articles | Volume 25, issue 14
https://doi.org/10.5194/acp-25-8271-2025
https://doi.org/10.5194/acp-25-8271-2025
Research article
 | 
31 Jul 2025
Research article |  | 31 Jul 2025

Satellite detection of NO2 distributions using TROPOMI and TEMPO and comparison with ground-based concentration measurements

Summer Acker, Tracey Holloway, and Monica Harkey

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Cited articles

Achakulwisut, P., Brauer, M., Hystad, P., and Anenberg, S. C.: Global, national, and urban burdens of paediatric asthma incidence attributable to ambient NO2 pollution: estimates from global datasets, Lancet Planetary Health, 3, e166–e178, https://doi.org/10.1016/S2542-5196(19)30046-4, 2019. 
Aerts, S., Haesbroeck, G., and Ruwet, C.: Multivariate coefficients of variation: Comparison and influence functions, J. Multivariate Anal., 142, 183–198, https://doi.org/10.1016/j.jmva.2015.08.006, 2015. 
Ahmad, N., Lin, C., Lau, A. K. H., Kim, J., Zhang, T., Yu, F., Li, C., Li, Y., Fung, J. C. H., and Lao, X. Q.: Estimation of ground-level NO2 and its spatiotemporal variations in China using GEMS measurements and a nested machine learning model, Atmos. Chem. Phys., 24, 9645–9665, https://doi.org/10.5194/acp-24-9645-2024, 2024. 
Ahmed, Z., Zeeshan, S., Persaud, N., Degroat, W., Abdelhalim, H., and Liang, B. T.: Investigating genes associated with cardiovascular disease among heart failure patients for translational research and precision medicine, Clinical and Translational Discovery, 3, e206, https://doi.org/10.1002/ctd2.206, 2023. 
Anenberg, S. C., Mohegh, A., Goldberg, D. L., Kerr, G. H., Brauer, M., Burkart, K., Hystad, P., Larkin, A., Wozniak, S., and Lamsal, L.: Long-term trends in urban NO2 concentrations and associated paediatric asthma incidence: estimates from global datasets, Lancet Planetary Health, 6, e49–e58, https://doi.org/10.1016/S2542-5196(21)00255-2, 2022. 
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Short summary
We studied how well satellites detect nitrogen dioxide, a harmful air pollutant, compared with the EPA's ground monitors across the US. Both satellites performed best in areas far from roads, where pollution is lower and more uniform. The newer TEMPO satellite, with hourly data, agreed most closely with monitors at midday and performed better than TROPOMI, a satellite with daily measurements. These findings highlight the ability of satellites to complement existing ground-based monitors.
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