Crackers still have say on Delhi's AQI: Air quality remains 'very poor'; farm fire share may rise to 20% today

Delhi's air quality has deteriorated following Diwali, with firecrackers contributing over 80% to pollution levels. On Wednesday, air quality remained in the very poor category, with particulate matter dominating emissions. Although the contribution from firecrackers dropped, secondary organic aerosols and wood burning remained significant sources of pollution. The Supreme Court's restrictions on firecracker use were widely ignored, leading to serious air quality issues.