The air quality in Delhi has improved significantly from "very poor" to "moderate" category on Saturday. The city's Air Quality Index (AQI) stood at 179 at 9.45 am which falls in the "moderate" category as against 316 on Friday morning. The AQI recorded in Ghaziabad was 264, Greater Noida 241, Noida 254, Gurgaon 165, the Meteorological (MeT) department said.
An AQI between 0-50 is considered "good", 51-100 "satisfactory", 101-200 "moderate", 201-300 "poor", 301-400 "very poor" and 401-500 "severe". An AQI above 500 falls in the "severe plus" category.
