Firecrackers remained Delhi's primary pollution source post-Deepavali, IITM reports

Data from the Indian Institute of Tropical Meteorology indicates that firecrackers were the leading cause of Delhi's air pollution on November 9. This spike occurred one day after Deepavali celebrations concluded. Pollution levels eventually began to decline by November 11. These findings highlight the significant environmental impact of firecracker usage on the capital's air quality.