AQI ranges rose to the ‘unhealthy’ class in New Delhi on Wednesday as a thick layer of smog engulfed the Raisina Hills. Photograph credit score: ANI
Delhi was ranked the sixth most polluted metropolis within the nation in October, after neighboring Ghaziabad and Noida, based on the examine.
Dharuhera in Haryana was ranked essentially the most polluted metropolis in October with a month-to-month common PM2.5 focus of 123 μg/m3, based on the month-to-month air high quality snapshot launched by the Heart for Vitality and Clear Air Analysis (CREA) on Tuesday.
It offered a complete evaluation of air high quality in India primarily based on Steady Air High quality Monitoring Station (CAAQMS) knowledge.
The findings reveal a pointy deterioration in air high quality throughout the nation, with the deteriorating state of affairs concentrated within the Indo-Gangetic Plains (IGP), particularly within the Nationwide Capital Area (NCR), an official assertion mentioned.
Delhi ranks sixth with a median focus of 107 μg/m3, 3 times greater than September’s common focus of 36 μg/m3.
Though stubble burning contributed lower than 6% of Delhi’s PM2.5 ranges in October, this sharp rise highlights the impression of year-round sources and the necessity for long-term mitigation plans that transcend short-term seasonal measures corresponding to phased response motion plans, the report mentioned.
Dharuhera was ranked essentially the most polluted metropolis in October, with a month-to-month common PM2.5 focus of 123 μg/m3, violating Nationwide Air High quality Requirements (NAAQS) limits on 77% of the times.
Throughout the identical month, there have been two “very unhealthy” days and 9 “very unhealthy” days. After Dharuhera, essentially the most polluted cities had been Rohtak, Ghaziabad, Noida, Ballabhgarh, Delhi, Bhiwadi, Larger Noida, Hapur and Gurgaon.
Total, 4 cities every from Uttar Pradesh and Haryana dominate the highest 10 listing, all situated inside the NCR.
Shillong, Meghalaya was India’s cleanest metropolis in October with a median PM2.5 focus of 10 µg/m3. The highest 10 cleanest cities included 4 from Karnataka, three from Tamil Nadu, and one every from Meghalaya, Sikkim, and Chhattisgarh.
212 out of 249 cities recorded PM2.5 ranges under India’s NAAQS of 60 µg/m3. Nonetheless, solely six cities met the World Well being Group (WHO) day by day security guideline of 15 µg/m3.
In October, the variety of cities with air high quality within the “good” vary (0-30 μg/m3) decreased to 68 from 179 in September, whereas the variety of cities with air high quality within the “passable” vary (31-60 μg/m3) elevated from 52 to 144.
The variety of cities within the “average” vary (61-90 μg/m3) elevated from 4 to 27, whereas 9 cities fell into the “poor” (91-120 μg/m3) class and one metropolis reached the “very poor” (121-250 μg/m3).
