Articles | Volume 23, issue 2
https://doi.org/10.5194/acp-23-1511-2023
https://doi.org/10.5194/acp-23-1511-2023
Research article
 | 
26 Jan 2023
Research article |  | 26 Jan 2023

Ground-level gaseous pollutants (NO2, SO2, and CO) in China: daily seamless mapping and spatiotemporal variations

Jing Wei, Zhanqing Li, Jun Wang, Can Li, Pawan Gupta, and Maureen Cribb

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Cited articles

ADS: Atmosphere Data Store, https://ads.atmosphere.copernicus.eu/, last access: 1 January 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. 
Cai, M., Zhang, S., Lin, X., Qian, Z., McMillin, S. E., Yang, Y., Zhang, Z., Pan, J., and Lin, H.: Association of Ambient Particulate Matter Pollution of Different Sizes With In-Hospital Case Fatality Among Stroke Patients in China, Neurology, 98, e2474–e2486, https://doi.org/10.1212/WNL.0000000000200546, 2022. 
CDS: Climate Data Store, https://cds.climate.copernicus.eu/, last access: 1 January 2023. 
Chen, L., Wei, J., Ma, T., Gao, D., Wang, X., Wen, B., Chen, M., Li, Y., Jiang, J., Wu, L., Li, W., Liu, X., Song, Y., Guo, X., Dong, Y., and Ma, J.: Ambient gaseous pollutant exposure and incidence of visual impairment among children and adolescents: findings from a longitudinal, two-center cohort study in China, Environ. Sci. Pollut. R., 29, 73262–73270, https://doi.org/10.1007/s11356-022-20025-3, 2022a. 
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Short summary
This study estimated the daily seamless 10 km ambient gaseous pollutants (NO2, SO2, and CO) across China using machine learning with extensive input variables measured on monitors, satellites, and models. Our dataset yields a high data quality via cross-validation at varying spatiotemporal scales and outperforms most previous related studies, making it most helpful to future (especially short-term) air pollution and environmental health-related studies.
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