Delhi’s air quality moved to the “very poor” category on Wednesday due to dusty air across the national capital.
Air Quality Index (AQI) stood at 322 at 4 pm. On Tuesday it was 215.
An AQI between 0 -50 is considered as “good”, 51 – 100 “satisfactory”, 101 -200 “moderate”, 201- 300 “poor”, 301 – 400 “very poor”, and 401 – 500 “severe”. .