Delhi's air quality remains 'severe' for the fourth consecutive day

On Sunday, Delhi's recorded the second highest air pollution level so far this year. The city's air was at its worst on November 8, a day after Diwali, when the AQI touched 571.

Delhi's air quality remained in the 'severe' category for the fourth consecutive day on Tuesday, despite authorities imposing a three-day ban on industrial and construction activities across Delhi-NCR.

Data released by the Central Pollution Control Board (CPCB) showed the overall air quality index (AQI) in the 'severe' category, with a reading of 431. On Monday morning, the AQI was a notch higher at 445.

However, the air quality at certain places in Delhi-NCR showed considerable improvement. In R K Puram, the concentration of PM2.5 was recorded at 288 on Tuesday, significantly down from Monday's level of 698.

Similarly, in Dwarka,