Capital city's air quality index stood at 381 at 12:00 p.m., which falls in the 'very poor' category. "Calm surface winds prevail over the region and winds are forecasted to pick up, the improved ventilation, likely to influence air quality positively. Increased surface wind speed and faster dispersion are likely to significantly improve the situation by November 1 to the lower-end of the very poor to poor category."

Besides this, synergised stubble fire counts significantly decreased and stood at 1,143 on Thursday. Although the boundary layer winds direction is favourable for pollutant transport towards the region, improved ventilation conditions is likely to bring down the concentration levels in Delhi. The stubble burning share is estimated as 19 per cent for today.

According to the Central Pollution Control Board (CPCB), twelve of the 35 pollution monitoring station in Delhi showed 'severe' air quality index reading. Delhi's Bawana area recorded the worst air quality index at 447, which falls in the 'severe' category.

Besides these, 22 pollution monitoring station showed 'very poor' reading and one logged moderate air quality index. The overall pollution levels continued to be in the higher end of the 'very poor' category.

Meanwhile, Delhi's neighbouring regions - Gurugram, Ghaziabad, Faridabad, Noida and Greater Noida -- also recorded 'very poor' quality of air. Greater Noida and Noida's air is currently the most polluted amongst all.

To tackle the air pollution, the President on Wednesday signed an ordinance brought in by the Centre for a Commission to manage air quality in the National Capital Region. The new pollution law, however, invited  divided opinions from environmental expert.

"I am supportive of this ordinance, its objectives, and the powers granted to it. The effectiveness of the commission will be determined by the choice of its permanent members, especially its chairperson. We need to ensure that these members have the capability to bind together the states into air quality solutions that can and will solve our air quality problems," Ajay Mathur, Director General of The Energy and Resources Institute (TERI) told IANS.

Whereas, Sunil Dahiya, Analyst, Centre for Research on Energy and Clean Air said that the major issue with the ordinance will be when it comes to implementation, as now dissolved Environment Pollution (Prevention and Control) Authority had almost similar powers but failed miserably in cleaning the air even after being in force for more than 20 years.