The Air Quality Index (AQI) of the national capital settled at 323 on Tuesday. Delhi continues to record the air quality in the 'very poor' category. A thick layer of haze was seen engulfing the city and its neighbouring areas on Tuesday, in videos shared by ANI.
According to the System of Air Quality and Weather Forecasting And Research (SAFAR-India), the AQI in IIT Delhi was recorded at 321, the Airport (Terminal 3) area at 336, and Pusa at 337.
AQI in Anand Vihar was recorded at 374, in Jahangirpuri at 399, in Lodhi Road at 315, and in New Moti Bagh at 370, according to the Central Pollution Control Board (CPCB).
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Earlier on Saturday, the restrictions imposed under GRAP Stage 4 were revoked after the AQI showed a slight improvement. Speaking about the restrictions related to vehicles, Gopal Rai said, "The ban on the entry of trucks has been revoked but the ban is still in place on the BS3 petrol vehicles and BS4 diesel vehicles. So the ban has been revoked only on trucks or vehicles that are above BS 4."
The Air Quality Index from 0 to 100 is considered as good, while from 100 to 200 it is moderate, from 200 to 300 it is poor, and from 300 to 400 it is said to be very poor and from 400 to 500 or above it is considered as severe.
The Air Quality Index is a tool for effectively communicating air quality status to people in terms that are easy to understand. It transforms complex air quality data of various pollutants into a single number (index value), nomenclature, and colour.
Notably, with an improvement in the air quality in Delhi, the CAQM (Commission for Air Quality Management) on Saturday revoked the restrictions that were imposed under GRAP 4, permitting trucks and buses except for BS-3 and BS-4 petrol and diesel vehicles to enter the city and lifting the ban on ongoing construction activities.
(With ANI inputs)