Air Quality Index (AQI) was recorded on Tuesday at 337 by the System of Air Quality and Weather Forecasting And Research (SAFAR).According to the SAFAR, Delhi's air quality was recorded in the 'very poor' category.
The air quality in the national capital continues to remain in the "very poor" category as the shallow fog and mist surrounded the city on Friday morning.
The air quality in the national capital continued to remain in the 'very poor' category as the System of Air Quality and Weather Forecasting And Research (SAFAR) recorded Delhi's Air Quality Index (AQI) at 346 on Tuesday morning.
The national capital has again started to breathe in the 'very poor' category as the winter started to set in. A layer of smog prevailed in the morning over the national capital on Sunday as it recorded over air quality index at 315, according to the System of Air Quality and Weather Forecas
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.