Delhi records minimum temp of 8.3, air quality 'severe' at some stations
Dwarka Sector 8 witnessed PM2.5 levels at 437, and PM10 was at 403, both falling under the 'severe' category.
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'. (Image credit: ANI)