New Delhi, Nov. 13 -- Ballabhgarh in Haryana recorded the highest air pollution level among major cities in the Delhi-NCR region, with an Air Quality Index (AQI) of 419. Delhi followed closely with an AQI of 403 at 7:05 am on Friday, placing both in the severe category, according to the SAMEER app, the official mobile application developed by the Central Pollution Control Board (CPCB).

Ghaziabad was the third most polluted city, recording an AQI of 379, followed by Noida at 368 and Khora in Uttar Pradesh at 358. Greater Noida registered an AQI of 356, while Gurugram and Manesar recorded readings of 351 and 350, respectively.

Panchgaon in Haryana recorded an AQI of 346, while Bahadurgarh reported the lowest reading among the 10 cities, a...