Stage 3 Measures in Delhi: Grap 4 Announced as AQI Stays in the Very Poor Range
With Delhi continuing to grapple with a “very poor” air quality index (AQI), the Commission for Air Quality Management (CAQM) has unveiled Grap 4 measures to be implemented under Stage 3 of the Graded Response Action Plan (GRAP). The decision follows a Supreme Court observation on November 19 urging proactive, consultative steps to curb pollution and protect public health. The new measures aim to tighten curbs on emissions and mobilize authorities and the public to limit exposure during peak pollution periods.
What GRAP Stage 3 Means for Delhi
GRAP is a framework designed to regulate and ease air pollution in stages. Stage 3 signifies heightened restrictions as pollution crosses thresholds that pose a clear risk to health. Grap 4 under Stage 3 constructs additional controls and enforcement aimed at reducing emissions from major sources while encouraging public vigilance and behavior changes to minimize exposure to polluted air.
Key Components of Grap 4 Under Stage 3
1. Construction and demolition activity curbs: Municipal bodies may restrict or suspend construction at non-essential sites, alongside mandatory dust suppression measures and street cleaning to curb fugitive emissions.
2. Industrial and power sector controls: Industries may face stricter time-bound emission limits, mandatory installation of pollution control devices, and enhanced monitoring of smokestack emissions. Power plants may run on tighter schedules to minimize peak-load pollution spikes.
3. Vehicular movement restrictions: Traffic rationing or odd-even style restrictions could be reintroduced in high-traffic corridors during peak pollution hours. Public transport deployment increases to reduce private vehicle usage, with a focus on electric and clean-energy options where feasible.
Public Health Safeguards and Awareness
The Grap 4 measures under Stage 3 emphasize protecting vulnerable populations by urging schools and workplaces to adjust outdoor activities, particularly during morning and evening pollution peaks. Public advisories will stress the use of N95 masks in high-exposure zones and encourage residents to check daily AQI forecasts before planning outdoor activities.
Coordination and Compliance
The CAQM has underscored the need for robust coordination among environmental agencies, transport departments, and municipal bodies to ensure swift enforcement of the Grap 4 measures. Local authorities will monitor hotspots, enforce penalties for violations, and engage communities through awareness campaigns to sustain compliance beyond the initial response phase.
Context: Supreme Court Observation and the Road Ahead
The CAQM referenced a Supreme Court observation from November 19, which directed the Commission to adopt proactive, consultative actions to curb pollution. The Grap 4 measures reflect an approach that relies on stakeholder engagement, transparent monitoring, and timely adjustments based on evolving air quality data. While the court’s guidance emphasizes precaution, the emphasis for Delhi remains on reducing emissions at the source and safeguarding public health in near-term practice.
What Residents Can Do Now
Beyond regulatory steps, individuals can contribute to cleaner air by limiting outdoor activity during high-pollution hours, using air purifiers indoors, wearing protective masks when outdoors, and supporting green transport options. Businesses and schools can implement flexible schedules and indoor air quality improvements to minimize risk to employees and students.
Looking Forward
As Delhi navigates the persistent challenge of very poor AQI levels, Grap 4 under Stage 3 represents a decisive step toward reducing emissions and safeguarding health. The effectiveness of these measures will hinge on timely enforcement, inter-agency coordination, and public cooperation. Stakeholders should stay informed about daily AQI updates and be prepared to adapt as the weather patterns and pollution sources evolve.
