Delhi's air quality deteriorated on Diwali, with 34 out of 38 monitoring stations recording pollution levels in the 'red zone' on Monday, indicating 'very poor' to 'severe' air across the national capital.

Delhi recorded an AQI of 335 on Diwali morning after people burst crackers overnight, causing severe noise pollution and blanketing the national capital in smoke.

Anti-pollution curbs under GRAP-2 have been invoked for Delhi and surrounding areas as the Air Quality Index has plunged ahead of Diwali. Curbs under GRAP-1 had been enforced just last week.

Air Quality in the national capital continued to be in the 'Poor' category on Sunday morning. As per the Central Pollution Control Board (CPCB), the Air Quality Index (AQI) around ITO was recorded at 284.

Delhi's air quality continued to deteriorate on Saturday, remaining in the "poor" category for the fifth consecutive day, with nine monitoring stations falling in the red zone of the "very poor" category as pollution levels spiked ahead of Diwali.

The Air Quality Index (AQI) around Akshardham was recorded at 230, in the 'Poor' category, in Delhi this morning as per the Central Pollution Control Board (CPCB).

Delhi's air quality remained in the 'poor' category for the fourth consecutive day on Friday as the city continued to reel under rising pollution levels in the run-up to Diwali.

As pollution levels rise across Indian cities, understanding what Air Quality Index (AQI) numbers mean is key to protecting your health.