<span style="color: #222222;">The cases of crop residue burning have come down by 31.5 per cent in Punjab, Haryana, Delhi, and NCR Districts of Uttar Pradesh and Rajasthan between the 15th of September to the 30th of November of this year as compared to the same period last year.<br />''<br />''The Environment Ministry has informed that the maximum contribution of farm fires to the daily PM2.5 levels in Delhi was 34 per cent this year as against 48 per cent last year. It further stated that the daily average AQI of Delhi in November this year registered a reduction of about 56 points at 320.60 as compared to 376.50 in November last year.</span><br />