Delhi’s air quality index reached 348 on November 3, 2026, forcing authorities to implement Stage II of the Graded Response Action Plan (GRAP) across the National Capital Region. The shift to these emergency measures follows a rapid deterioration in air quality as winter conditions trap pollutants near the ground.
Commission Triggers Emergency Restrictions Following Air Quality Drop
The Commission for Air Quality Management (CAQM) triggered the Stage II restrictions on November 2 after the city’s average air quality index (AQI) hit 324. These measures aim to curb dust and vehicle emissions through several immediate mandates:
As Delhi’s air quality dropped to the 'very poor' category on Monday, with 'severe' AQI readings of 400+ in several parts, GRAP Stage II restrictions are now in force across the NCR. Under Stage II of the Graded Response Action Plan (GRAP), agencies are instructed to step up… pic.twitter.com/gTFP9xbBaO
- Fuel and Emission Controls: A No PUC, No Fuel rule is now in effect, preventing vehicles without a valid Pollution Under Control certificate from refueling with petrol, diesel, or CNG.
- Vehicle Restrictions: From November 1, 2026, to January 31, 2027, vehicles registered outside Delhi that do not meet BS-VI emission standards are barred from entering or operating in the capital.
- Infrastructure and Maintenance: Authorities have increased mechanical road sweeping and water sprinkling. Parking fees for private vehicles have been doubled at authorized sites through February 28, 2027, to discourage usage.
- Generator Usage: The use of diesel generators is prohibited, except for essential services. Only generators running on natural gas, biogas, or LPG are permitted, and those exceeding 800 kilowatts may be operated only during retrofitting.
While these restrictions are in place, public transport services, including the Delhi Metro, have increased capacity. Additionally, authorities have directed government offices to implement staggered working hours to ease traffic congestion.
Seasonal Weather Patterns Drive Current Pollution Crisis
The current crisis stems from a combination of seasonal weather patterns and localized pollution sources. Anil Kumar, former director of the Delhi government’s Department of Environment, noted that lower temperatures, slow wind speeds and a lower mixing height make it difficult for pollutants to disperse. He stated that the first two weeks of November typically bring high pollution levels.
Weather conditions have a major role in the pollution levels across North India,
Kumar said.
The current index accounts for eight major pollutants, including PM2.5—tiny particles roughly 30 times smaller than the width of a human hair that can penetrate deep into the lungs. Maninder Singh Nayyar, founder and CEO of CEF Group, noted that cold weather, weak winds, and temperature inversion cause pollution to linger in the air for longer periods. Experts warn that simply restricting vehicles will not solve the problem, as road dust, factory emissions, waste burning, and construction work continue to contribute significantly to the city’s toxic air.
Delhi’s air pollution worsened today despite the enforcement of Stage-II restrictions under the Graded Response Action Plan (GRAP), with the city’s air quality remaining in the ‘Very Poor’ category and several monitoring stations reporting ‘Severe’ pollution levels. The Air… pic.twitter.com/jpupFDHnmX
Accumulation of PM2.5 Raises Significant Health Concerns
The accumulation of PM2.5 has raised significant health concerns for millions, particularly children and the elderly. As the AQI climbs, authorities have advised residents to exercise caution. Maninder Singh Nayyar suggested that hospitals should maintain adequate supplies of medicines and oxygen while improving ventilation and air filtration in areas treating vulnerable patients.
The pollution has reached a critical threshold, with 10 out of 57 air monitoring stations reporting severe levels, while 35 stations recorded very poor air quality. Jahangirpuri was identified as one of the most polluted areas, recording an AQI of 462.
Potential for Further Escalation
The GRAP framework serves as an emergency response that becomes progressively stricter as air quality worsens. Officials noted that a recent Western Disturbance brought rain and stronger winds that briefly cleared the air, but as the weather settled, northwesterly winds returned, carrying smoke from burning fields toward the capital.
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