Pollution Menace: Ground report from Vijay Chowk, Delhi

The stubble share in PM2.5 is now predicted to drop down significantly to 17 per cent on Saturday owing to reduction in fire counts and change in upper wind direction to northerly instead of north-north-westerly.

Earlier till Friday, in the wake of favourable boundary layer meteorology prevailing between Delhi and the stubble burning regions, supported by calm surface wind condition in Delhi, accumulation of pollutants sharply increased as stubble share in Delhi's PM2.5 touched a season high of 44 per cent on October 31 and 38 per cent on November 1.