Delhi India's 6th most polluted city in October; Dharuhera worst— see full list

NEW DELHI: Delhi was ranked the sixth astir polluted metropolis successful India successful October, trailing down Ghaziabad and Noida, according to a caller study by the Centre for Research connected Energy and Clean Air (CREA).The study, based connected continuous aerial prime monitoring data, recovered a crisp driblet successful aerial prime crossed the Indo-Gangetic Plain, peculiarly successful the National Capital Region. Dharuhera successful Haryana topped the database arsenic the astir polluted city, signaling a monthly mean PM2.5 level of 123 µg/m³, treble the nationalist harmless limit.Delhi’s aerial prime besides worsened significantly, with its monthly mean rising to 107 µg/m³, astir 3 times higher than successful September.

CREA noted that portion stubble burning contributed little than six per cent of Delhi’s PM2.5 levels successful October, the spike points to the interaction of year-round contamination sources and the limits of short-term seasonal measures similar the Graded Response Action Plan.Dharuhera breached nationalist aerial prime standards connected 77 per cent of the days past month, logging 2 ‘severe’ and 9 ‘very poor’ days. Other cities precocious connected the contamination database included Rohtak, Ghaziabad, Noida, Ballabgarh, Bhiwadi, Greater Noida, Hapur, and Gurgaon, astir of them portion of the NCR region.

Top 10 astir polluted cities

Also read: Data nether fire, SC seeks study connected measures to tackle pollutionAt the different end, Shillong successful Meghalaya was India’s cleanest city, with an mean PM2.5 attraction of 10 µg/m³. Four cities from Karnataka and 3 from Tamil Nadu besides featured among the apical 10 cleanest.Out of 249 cities analysed, 212 met India’s nationalist aerial prime standards, but lone six complied with the World Health Organisation’s harmless bounds of 15 µg/m³. The study besides showed a crisp diminution successful the fig of cities with ‘good’ aerial quality, dropping from 179 successful September to conscionable 68 successful October.