NCR, the air quality deteriorated further on Monday morning with the AQI rising to ‘severe’ and ‘severe plus’ levels.

SC seeks explanation from Delhi government on implementation of Graded Response Action Plan (GRAP) and says it is in favour of continuance of fourth stage of GRAP even in case of AQI level reduces below 400 level in Delhi Delhi Air Pollution Supreme Court Hearing Live Updates: We want to know what action government has taken, asks Justice Oka

Delhi's air pollution crisis worsens with AQI surpassing 1500, prompting GRAP-4 measures and flight advisories. Check the most polluted areas in the city.

The AQI at all monitoring stations stood between 1300 and 1600 - ‘hazardous’ category - at around 10 am on Monday, as per Swiss air technology company IQAir.

This dramatic deterioration in air quality has prompted urgent action from authorities, with Delhi experiencing a host of severe environmental concerns.

The Supreme Court agreed for an urgent hearing of a plea on Monday seeking directions to curb air pollution in the national capital and adjoining areas.

The air quality in the national capital has worsened with the air quality index (AQI) reading reaching a mark of 483, which is in the ‘severe plus’ category. An AQI of 450 and above is categorised as ‘severe plus’.

The air quality in Delhi deteriorated, prompting GRAP IV restrictions. Schools for students up to Class 11 will switch to online learning, construction work will be banned, and only specific vehicles

Delhi's air quality reached a hazardous AQI level of 1001, as per IQAir, with projections of improvement later in the day. The dense pollution triggered emergency measures, including restrictions on vehicles and construction activities under the GRAP framework.