Air quality in Delhi remains in poor category

Delhi on Thursday continued to grapple with rising pollution as the air quality index settled in the ‘very poor’ category in most areas of the city.

The Air Quality Index (AQI) was recorded at 328 at 9 am with a thick layer of smog shrouding the city in the morning hours, according to the Central Pollution Control Board (CPCB).

Air quality is classified under four different stages: Stage I ‘Poor’ (AQI 201-300); Stage II ‘Very Poor’ (AQI 301-400); Stage III ‘Severe’ (AQI 401-450); and Stage IV ‘Severe Plus’ (AQI>450).