Delhi records 7.6 degrees, AQI 'poor' at several stations
The Air Quality Index (AQI) between zero 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 Indira Gandhi International (IGI) Airport (T3) recorded PM2.5 levels at 74, which is counted as 'satisfactory' and PM10 at 148. (Image credit: ANI)