Delhi’s air quality saw a significant improvement, with the average Air Quality Index (AQI) dropping from 348 at 5 PM to 341 at 6 PM, and further to 334 by 7 PM on December 27, 2024, indicating a clear downward trend. This improvement prompted the Sub-Committee on the Graded Response Action Plan (GRAP) of the Commission for Air Quality Management (CAQM) in NCR and adjoining areas to convene and reassess the ongoing air quality scenario and forecasts provided by the Indian Meteorological Department (IMD) and the Indian Institute of Tropical Meteorology (IITM).
Favourable meteorological conditions, including continuous rainfall since early morning, played a crucial role in this improvement. Forecasts suggest that the AQI is likely to shift into the “Poor” category (201-300) in the coming days, further signalling better air quality ahead. Considering this, the Sub-Committee decided to revoke Stage-III restrictions of the revised GRAP across the National Capital Region (NCR) with immediate effect. However, actions under Stages II and I of GRAP will remain in force and continue to be implemented, monitored, and reviewed by all relevant agencies.
The revocation of Stage-III restrictions comes as a relief to stakeholders and the public, as these measures had a disruptive impact on various sectors. However, strict vigilance will be maintained to ensure compliance with Stages II and I. Authorities have emphasised intensified measures under these stages to prevent the reimplementation of Stage-III restrictions.
Construction and demolition sites, along with industrial units that were previously ordered to cease operations due to non-compliance with statutory guidelines, will not be permitted to resume activities without explicit approval from the Commission. Citizens are urged to adhere to the GRAP charter under Stages II and I, especially considering the winter season when meteorological conditions may not always favour air quality improvement.
The Sub-Committee assured that it would continue to monitor the air quality closely and review the situation regularly to take timely and appropriate action if necessary.
The collaborative efforts of agencies and public compliance remain critical to maintaining this positive momentum in Delhi’s fight against air pollution.