The onset of winter and deteriorated air quality meant that the national capital was seen covered in a layer of smog this morning.
The Air Quality Index (AQI) in the national capital was recorded at 332, which comes under the 'very poor' category this morning as per the System of Air Quality and Weather Forecasting And Research (SAFAR) records.
Earlier on November 29, the air quality in the national capital continued to remain in the 'very poor' category as the SAFAR recorded Delhi's Air Quality Index (AQI) at 346 on Tuesday morning.
On Monday, Delhi's AQI was 317.
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.
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.