As Delhi’s air quality deteriorated further during the day, breaching the 400 mark and slipping into the ‘Severe+’ category, the Commission for Air Quality Management (CAQM) , the Centre’s anti-pollution panel, imposed GRAP 4 restrictions in the national capital and its adjoining areas from tonight. This came just hours after the CAQM had enforced GRAP 3 earlier in the day, when air quality levels were hovering above 300.

The Air Quality Index (AQI) stood at 448 at 7 pm on Saturday, according to data from the Central Pollution Control Board (CPCB).

Under GRAP Stage IV, the commission has rolled out stricter emergency measures in addition to the curbs already in force under Stages I, II and III. All construction and demolition activities, including earthwork, excavation and structur

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