Indranil Nandi

Abstract Delhi’s persistent wintertime pollution cannot be addressed through local measures alone. Using a high-resolution, online-coupled atmospheric chemistry-transport model (WRF-Chem), together with India-specific anthropogenic emissions and near-real-time biomass-burning inputs, we quantify how existing and realistically strengthened mitigation policies could improve air quality over NCT-Delhi when implemented within Delhi-NCR versus across the broader regional airshed.