What is Delhi's current air quality index?

Delhi's average AQI is currently 374, categorized as 'Very Poor'.

How is the fog affecting Delhi's air quality?

Dense fog is exacerbating pollution by trapping pollutants and reducing visibility, leading to unfavorable conditions for dispersal.

Which sector contributes most to Delhi's PM2.5 emissions?

The transport sector is currently the largest contributor to Delhi's PM2.5 emissions.

Home / Environment / Delhi Chokes: AQI Hits 374, Fog Worsens Crisis

Delhi Chokes: AQI Hits 374, Fog Worsens Crisis

20 Dec, 2025

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Summary

Delhi's AQI remains at 374, Noida hits 'Severe' category.
Dense fog disrupts visibility and hinders pollutant dispersal.
Transport sector remains top contributor to PM2.5 emissions.

Delhi Chokes: AQI Hits 374, Fog Worsens Crisis

Delhi's air quality index (AQI) stood at 374 on Friday, maintaining its 'Very Poor' status, with some areas experiencing 'Severe' conditions. Neighboring Noida recorded an AQI of 410, placing it in the 'Severe' category, while Gurgaon's AQI worsened to 322.

Dense fog has significantly reduced visibility across the capital, especially during early morning hours, disrupting transportation. This, coupled with unfavorable weather patterns and low wind speeds, is hindering the dispersal of pollutants, with forecasts indicating continued 'Severe' to 'Very Poor' air quality for the next six days.

The transport sector remains the leading contributor to PM2.5 emissions in Delhi, followed by industrial units. Road dust and construction activities also play a role. Weather conditions are expected to keep the ventilation index low, further impeding any potential improvement in air quality.