Delhi Air Quality Measures: Recent Developments
The air quality in Delhi has been a pressing concern for residents and authorities alike. The Hon’ble Supreme Court recently issued directives regarding air quality management in the National Capital Region (NCR). These directives are part of the ongoing efforts to combat air pollution and ensure the health and safety of the public. The Commission for Air Quality Management (CAQM) has been actively implementing measures based on these directives. This article explores the recent developments in air quality management in Delhi, focusing on the Graded Response Action Plan (GRAP) and its implications for residents.
Supreme Court Directives on Air Quality Management
On December 5, 2024, the Supreme Court issued important directives in the case of M.C. Mehta Vs. Union of India & Ors. The court emphasized the need for immediate action when the Air Quality Index (AQI) reaches critical levels. Specifically, it mandated that if the AQI exceeds 350, Stage-III measures must be implemented. If the AQI surpasses 400, Stage-IV measures should be reintroduced. These measures are designed to protect public health and mitigate the effects of severe air pollution.
Following these directives, the CAQM Sub-Committee on GRAP took swift action. On December 16, 2024, they invoked Stage-III of the revised GRAP when Delhi’s AQI breached the 350 mark. Later that day, as the situation worsened, Stage-IV measures were implemented when the AQI reached 401. This proactive approach reflects the seriousness of the air quality crisis in Delhi and the commitment of authorities to address it.
Current Air Quality Status in Delhi
As of December 24, 2024, Delhi’s daily average AQI was recorded at 369, indicating a “Very Poor” air quality level. However, there was a notable improvement throughout the day. The AQI dropped to 364 at 5 PM and further to 361 by 6 PM. This trend prompted the CAQM Sub-Committee to convene and review the air quality situation, along with forecasts from the Indian Meteorological Department (IMD) and the Indian Institute of Tropical Meteorology (IITM).
The Sub-Committee observed that the AQI had peaked at 478 earlier in the day but showed signs of improvement. The forecasts suggested that the air quality would not degrade further in the coming days. This positive trend led the Sub-Committee to decide to revoke Stage-IV measures across the NCR, effective immediately. However, they emphasized that actions under Stages III, II, and I would remain in place to prevent the AQI from slipping back into the “Severe” category.
Implementation of Graded Response Action Plan
The CAQM has been diligent in implementing the Graded Response Action Plan (GRAP) to manage air quality in Delhi. The plan consists of several stages, each corresponding to different levels of air pollution. While Stage-IV measures have been revoked, the Sub-Committee has stressed the importance of adhering to the remaining stages. This includes strict monitoring and enforcement of actions under Stages III, II, and I.
Various agencies, including Pollution Control Boards (PCBs) and the Delhi Pollution Control Committee (DPCC), have been tasked with ensuring compliance with these measures. The goal is to maintain air quality within acceptable limits and prevent further deterioration. Citizens are also encouraged to follow the Citizen Charter associated with these stages, which outlines actions they can take to contribute to improved air quality.
Future Monitoring and Public Awareness
The CAQM Sub-Committee has committed to closely monitoring the air quality situation in Delhi. They will review the air quality data and forecasts regularly to make informed decisions about the necessary actions. The winter season poses unique challenges, as weather conditions can affect air quality. Therefore, it is crucial for both authorities and citizens to remain vigilant.
Public awareness is key to managing air quality effectively. The CAQM has made the revised GRAP schedule accessible on its official website, allowing residents to stay informed about the current measures in place. By working together, authorities and citizens can contribute to a healthier environment in Delhi.
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