The worsening air quality poses health risks, particularly for vulnerable groups such as children, the elderly, and individuals with respiratory or cardiovascular conditions. Areas like ITO, Vivek Vihar, RK Puram, and Jahangirpuri are experiencing severe pollution levels, with AQI readings ranging from 262 to 430. The transport sector is the largest contributor to PM2.5 levels in Delhi, accounting for 23.2% of emissions. Stubble burning, which currently has a minimal impact, is expected to contribute up to 12% of PM2.5 levels by Wednesday.