Rai said contributions from surrounding areas play a significant role in Delhi's pollution levels, with 30 per cent of the pollution originating from local sources and 34 per cent coming from the national capital region.

Delhi's air quality remains severe, prompting GRAP-III restrictions under which stringent ban will be put in place on construction and demolition activities among others.

Delhi's air quality has been categorised as 'very poor' since 30 October, with the season's first 'severe' level recorded on Wednesday.

For the third consecutive day, Delhi continues to grapple with the adverse consequences of remaining in the 'severe' air quality zone with an average Air Quality Index (AQI) of 400 plus on Friday.

As of early Thursday morning, the AQI at key locations like Anand Vihar, Bawana, Dwarka Sector 8, and Jahangirpuri surpassed 400, entering the "severe" category.

As Delhi's air quality dropped to 'severe', Delhi Chief Minister Atishi announced that all primary schools in the national capital would be shifted to online modules. In a post on X, Atishi said that the online sessions will continue till further directions.

Amid worsening air quality, Delhi chief minister Atishi on Thursday announced that primary schools in Delhi will hold online classes until further directions are given. “Due to rising pollution levels,