After staying in the “moderate” zone for two days, the city’s air quality on Thursday deteriorated again and reached “poor”, with the hourly average air quality index (AQI) recording 258 at 7am.
Representational image. (Sanjeev Verma/HT PHOTO)
Delhi’s air quality on Wednesday was 188.
Central Pollution Control Board (CPCB) data showed that on Tuesday the overall AQI levels in Delhi were 175, also in the “moderate” category.