Delhi's Air Quality Deteriorates to 'Very Poor' Ahead of Diwali
Delhi's Air Quality Deteriorates to 'Very Poor' Ahead of Diwali
IN · Published Nov 4, 2026
• Delhi's air quality has worsened significantly, entering the 'very poor' category for the first time this season on 2 November 2026, with an average Air Quality Index (AQI) of
• Some monitoring stations recorded AQI levels above 400, categorised as 'severe'. The early onset of pollution is attributed to a combination of factors, including crop-residue burning in Punjab and Haryana, as well as an unusually high number of agricultural fires in Pakistan's Punjab province. Northwesterly winds are carrying smoke from these fires into Delhi-NCR, while stagnant weather conditions are preventing pollutants from dispersing. The situation is expected to worsen as Diwali approaches, with additional emissions from firecrackers likely to exacerbate the smog.

Impact & Risks

The deteriorating air quality poses significant health risks, particularly for vulnerable groups such as children, the elderly, and those with pre-existing respiratory conditions. The 'very poor' and 'severe' AQI levels indicate a high concentration of harmful pollutants, which can lead to respiratory issues, cardiovascular problems, and other health complications. The combination of local emissions, crop-residue burning, and unfavourable weather conditions is expected to prolong the smog, increasing the risk of prolonged exposure to toxic air.

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