New Delhi, Oct 24 (UNI) Delhi on Saturday witnessed "very poor" air quality.
Air Quality Index (AQI) for the past 24 hours was 345, according to a daily update from the Central Pollution Control Board.
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".