GRAP Stage III is invoked when AQI reaches 401 to 450, classified as 'severe'.
Delhi Air 'Very Poor', 'Severe' In Several Areas Day Before Diwali
In short
Air quality across the capital was tracked at very poor levels overall just one day prior to Diwali. Conditions worsened considerably in multiple localities, where pollution metrics reached the severe designation. Under the existing emergency framework, Stage III of the Graded Response Action Plan is triggered whenever the Air Quality Index falls within the severe range of 401 to 450.
Key points
- Citywide atmospheric metrics reflect a mix of very poor and severe air quality conditions.: Citywide atmospheric metrics reflect a mix of very poor and severe air quality conditions.
- Regulatory frameworks require immediate implementation of Stage III actions when threshol…: Regulatory frameworks require immediate implementation of Stage III actions when thresholds meet the severe standard.
- The pollution surge occurred directly on the eve of the Diwali festival period.: The pollution surge occurred directly on the eve of the Diwali festival period.