Delhi Govt to Take Call on Saturday on Banning BS-III Petrol, BS-IV Diesel Vehicles

An AQI between 201 and 300 is considered ‘poor’, 301 and 400 ‘very poor’, and 401 and 500 ‘severe’An AQI between 201 and 300 is considered ‘poor’, 301 and 400 ‘very poor’, and 401 and 500 ‘severe’