Articles | Volume 24, issue 2
https://doi.org/10.5194/acp-24-789-2024
https://doi.org/10.5194/acp-24-789-2024
Research article
 | 
19 Jan 2024
Research article |  | 19 Jan 2024

Quantifying effects of long-range transport of NO2 over Delhi using back trajectories and satellite data

Ailish M. Graham, Richard J. Pope, Martyn P. Chipperfield, Sandip S. Dhomse, Matilda Pimlott, Wuhu Feng, Vikas Singh, Ying Chen, Oliver Wild, Ranjeet Sokhi, and Gufran Beig

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Our paper uses novel satellite datasets and high-resolution emissions datasets alongside a back-trajectory model to investigate the balance of local and external sources influencing NOx air pollution changes in Delhi. We find in the post-monsoon season that NOx from local and non-local transport emissions contributes most to poor air quality in Delhi. Therefore, air quality mitigation strategies in Delhi and surrounding regions are used to control this issue.
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