Thick layer of dust engulfs Delhi-NCR, air quality worsens to ‘very poor’

An AQI ranging from 301 to 400 is categorised as ‘very poor’. The AQI recorded in most of the observation stations was in the very poor category. The AQI at Anant Vihar, Ashok Vihar, and Aya Nagar was recorded at 352, 322 and 333, respectively.