Expert: Delhi's air quality to remain very poor during Diwali

Data from the Central Pollution Control Board showed that the air quality in Delhi entered the 'very poor' category for the first time this season on Tuesday.

The Air Quality Index (AQI) recorded on Tuesday was 303; any reading above 100 on a scale of 500 is considered unsafe for health. Very-poor air quality poses risk of respiratory problems in the event of prolonged exposure.

The IMD has warned that the air quality is likely to remain in the lower end of the very-poor category on Thursday, when Diwali is celebrated.

The AQI has tended to deteriorate in the aftermath of Diwali due to widespread use of crackers, though, in recent years, the government and judiciary have sought to minimise the adverse impact of crackers by restricting their sale and use.

R.K. Jenamani, a senior scientist at the IMD, told sources "Overall air quality in Delhi in the next 24 hours is expected to remain in 'very poor' category. Smog was visible for the first time today (Wednesday). We'll be specially monitoring the air quality on November 4 and 5. On November 6 and 7, wind speed will pick up."