The government has blamed a combination of factors including stubble burning and firecrackers for Delhi’s worsening air quality.

Despite the enforcement of Stage-IV measures under the Graded Response Action Plan (Grap), pollution levels show little respite

The national capital's air quality was recorded in the "severe" category with an AQI index of 433 on Friday morning, according to data from the Central Pollution Control Board (CPCB). An AQI between zero and 50 is considered 'good',

Delhi's air quality remains "severe" for the fifth day, exceeding WHO limits by over 17 times, impacting health.

Delhi's air quality on Thursday plunged into the 'severe plus' category, with a 24 hour average AQI of 451 recorded at 4 pm, according to CPCB data.

The most polluted place was Nehru Nagar with 485 AQI, followed by Wazirpur at 482 AQI and the visibility was 600m at IGI airport, as of 7.30 am.

The Air quality index in the national capital remained in the 'severe' category on Thursday as a thick layer of fog blanketed around the city and limited the visibility. The Air Quality Index (AQI) measured in the city was 448 at 8 a.