Articles | Volume 25, issue 1
https://doi.org/10.5194/acp-25-575-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-575-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Global seasonal urban, industrial, and background NO2 estimated from TROPOMI satellite observations
Vitali Fioletov
CORRESPONDING AUTHOR
Air Quality Research Division, Environment and Climate Change Canada, Toronto, Canada
Chris A. McLinden
Air Quality Research Division, Environment and Climate Change Canada, Toronto, Canada
Debora Griffin
Air Quality Research Division, Environment and Climate Change Canada, Toronto, Canada
Xiaoyi Zhao
Air Quality Research Division, Environment and Climate Change Canada, Toronto, Canada
Henk Eskes
Royal Netherlands Meteorological Institute, De Bilt, the Netherlands
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Cited
14 citations as recorded by crossref.
- Hybrid transformer and physics-informed neural operator for correcting TEMPO NO2 biases over North America S. Kayastha et al. https://doi.org/10.1038/s44407-026-00056-7
- Advances in Satellite-Based Monitoring of Urban Emission Sources and Air Quality: A Review S. Naderi et al. https://doi.org/10.1007/s11270-025-09009-4
- Tracking the path to cleaner cities using global urban NO2 monitoring from space A. Hassani et al. https://doi.org/10.1088/1748-9326/ae5e97
- Mapping GHG Emission Vulnerability Using Convolutional Autoencoder And Multi-Sensor Satellite In Bali, Indonesia M. Saifulloh et al. https://doi.org/10.24057/2071-9388-2025-4005
- Global NO2 changes between 2019 and 2024 as observed by TROPOMI in urban areas and emerging hotspots D. Huber et al. https://doi.org/10.5194/acp-26-3783-2026
- Monitoring of total and off-road NOx emissions from Canadian oil sands surface mining using the Ozone Monitoring Instrument C. McLinden et al. https://doi.org/10.5194/acp-25-6093-2025
- Satellite-Based Estimation of Urban CO2 Emissions in Shandong Province, China, Using TROPOMI NO2 Observations and Differential Evolution Algorithm Y. Xie et al. https://doi.org/10.3390/rs18101470
- TANGO CO2 and NO2 observations: synergistic usage to improve emission quantification and characterize atmospheric chemistry T. Borsdorff et al. https://doi.org/10.5194/amt-19-4617-2026
- Investigating Ozone Formation Regimes in the Metropolitan Area of São Paulo Using Five Years of TROPOMI HCHO/NO2 Ratios A. Freitas et al. https://doi.org/10.3390/rs18101603
- Gap-filling XCO2 variability: A conditional framework to estimate XCO2 in data-sparse regions using dense TROPOMI NO2 observations over China J. Gu et al. https://doi.org/10.1016/j.envres.2026.124580
- A novel framework for temporal data transformation in environmental risk assessment: Addressing data variability and gaps in monitoring T. Marum et al. https://doi.org/10.1016/j.eiar.2026.108391
- A pan-European WRF–CMAQ framework for air quality assessment: Model evaluation and policy baseline N. Traka et al. https://doi.org/10.1016/j.apr.2026.102992
- Spatial and Seasonal Variation of Nitric Acid (HNO3) and Understanding the Formation of NH4NO3 in the HNO3–NH3 system in Korea D. Jung et al. https://doi.org/10.1007/s44408-025-00090-2
- Spatiotemporal estimation of daily surface NO2 concentrations over China from 2019 to 2024 based on TROPOMI data and MAPST-Net model Q. Zeng et al. https://doi.org/10.1016/j.atmosenv.2026.122203
14 citations as recorded by crossref.
- Hybrid transformer and physics-informed neural operator for correcting TEMPO NO2 biases over North America S. Kayastha et al. https://doi.org/10.1038/s44407-026-00056-7
- Advances in Satellite-Based Monitoring of Urban Emission Sources and Air Quality: A Review S. Naderi et al. https://doi.org/10.1007/s11270-025-09009-4
- Tracking the path to cleaner cities using global urban NO2 monitoring from space A. Hassani et al. https://doi.org/10.1088/1748-9326/ae5e97
- Mapping GHG Emission Vulnerability Using Convolutional Autoencoder And Multi-Sensor Satellite In Bali, Indonesia M. Saifulloh et al. https://doi.org/10.24057/2071-9388-2025-4005
- Global NO2 changes between 2019 and 2024 as observed by TROPOMI in urban areas and emerging hotspots D. Huber et al. https://doi.org/10.5194/acp-26-3783-2026
- Monitoring of total and off-road NOx emissions from Canadian oil sands surface mining using the Ozone Monitoring Instrument C. McLinden et al. https://doi.org/10.5194/acp-25-6093-2025
- Satellite-Based Estimation of Urban CO2 Emissions in Shandong Province, China, Using TROPOMI NO2 Observations and Differential Evolution Algorithm Y. Xie et al. https://doi.org/10.3390/rs18101470
- TANGO CO2 and NO2 observations: synergistic usage to improve emission quantification and characterize atmospheric chemistry T. Borsdorff et al. https://doi.org/10.5194/amt-19-4617-2026
- Investigating Ozone Formation Regimes in the Metropolitan Area of São Paulo Using Five Years of TROPOMI HCHO/NO2 Ratios A. Freitas et al. https://doi.org/10.3390/rs18101603
- Gap-filling XCO2 variability: A conditional framework to estimate XCO2 in data-sparse regions using dense TROPOMI NO2 observations over China J. Gu et al. https://doi.org/10.1016/j.envres.2026.124580
- A novel framework for temporal data transformation in environmental risk assessment: Addressing data variability and gaps in monitoring T. Marum et al. https://doi.org/10.1016/j.eiar.2026.108391
- A pan-European WRF–CMAQ framework for air quality assessment: Model evaluation and policy baseline N. Traka et al. https://doi.org/10.1016/j.apr.2026.102992
- Spatial and Seasonal Variation of Nitric Acid (HNO3) and Understanding the Formation of NH4NO3 in the HNO3–NH3 system in Korea D. Jung et al. https://doi.org/10.1007/s44408-025-00090-2
- Spatiotemporal estimation of daily surface NO2 concentrations over China from 2019 to 2024 based on TROPOMI data and MAPST-Net model Q. Zeng et al. https://doi.org/10.1016/j.atmosenv.2026.122203
Saved (final revised paper)
Latest update: 27 Jul 2026
Short summary
Satellite data were used to estimate urban per capita emissions for 261 major cities worldwide. Three components in tropospheric NO2 data (background NO2, NO2 from urban sources, and NO2 from industrial point sources) were isolated, and then each of these components was analyzed separately. The largest per capita emissions were found in the Middle East and the smallest in India and southern Africa. Urban weekend emissions are 20 %–50 % less than workday emissions for all regions except China.
Satellite data were used to estimate urban per capita emissions for 261 major cities worldwide....
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