Delhi-NCR is facing a severe air quality crisis, prompting authorities to implement the most stringent measures under the Graded Response Action Plan (GRAP). On Saturday, the Commission for Air Quality Management (CAQM) invoked Stage IV of GRAP across the region as the Air Quality Index (AQI) crossed the 450 mark, reaching the 'Severe+' category. The AQI in Delhi was recorded at 478 around 7 pm on Saturday. These emergency restrictions are being implemented in addition to the measures already in place under Stages I, II, and III of GRAP.

The decision to escalate to GRAP-IV was made by the CAQM sub-committee after reviewing the deteriorating air quality trend. The commission stated that the emergency measures were necessary to prevent further deterioration of air quality across Delhi-NCR. This move came just hours after GRAP-III was invoked in the national capital, highlighting the rapid decline in air quality.

GRAP-IV includes a range of stringent measures aimed at curbing pollution. Details on specific restrictions and allowances under GRAP-IV are awaited.

The public is advised to stay informed about the evolving situation and adhere to guidelines issued by authorities. Real-time air quality data is available from the Central Pollution Control Board (CPCB) and other monitoring agencies. Residents, especially those with respiratory issues, are urged to take necessary precautions, such as wearing masks and avoiding prolonged outdoor activities.

The weather forecast for Delhi indicates partly cloudy conditions during the day and cloudy conditions at night. The temperature is expected to range between 8°C and 24°C. The weather conditions, combined with existing pollution sources, contribute to the current air quality crisis.