New Delhi, Dec. 14 -- 'Severe plus' air pollution levels across Delhi-NCR have raised alarm. Delhi residents woke up to a thick blanket of toxic smog shrouding the national capital on Sunday. The Air Quality Index (AQI) stood at 461 at 7:00 AM today, according to Central Pollution Control Board (CPCB). The AQI breached the 'Severe Plus' as monitoring stations at several locations recorded readings above 450 mark.

A total of 25 monitoring stations out of 39 recorded AQI reading above 450. Ashok Vihar, Anand Vihar, Bawana, ITO, Jahangirpuri, Narela, Rohini, Wazirpur and Vivek Vihar locations recorded AQI readings above 490. Notably, Rohini recorded an AQI of 499 on a 500-point scale. Meanwhile, all monitoring stations across the city recor...