December begins with slightly better air quality in Delhi as AQI improves

SAFAR said the air quality of the national capital is expected to 'significantly deteriorate' on Sunday

Delhi's air quality was in the 'very poor' category on Saturday with authorities warning of "significant deterioration" in pollution levels on Sunday.

According to System of Air Quality and Weather Forecasting (SAFAR), the overall air quality index (AQI) of Delhi was 346, slightly better than Friday's recordings.

An AQI between 0 and 50 is considered 'good', 51 and 100 'satisfactory', 101 and 200 'moderate', 201 and 300 'poor', 301 and 400 'very poor', and 401 and 500 'severe'.

The CPCB said seven areas in Delhi, including Mundka, Rohini and Wazirpur, recorded 'severe' air quality, while in 25 other areas the air