
Black smog engulfs Delhi, PM 2.5 exceeds WHO’s safer limits
New Delhi, Nov 4 (UNI) Delhi’s air quality remains in the “severe category” for the third consecutive day on Saturday morning with an Air Quality Index (AQI) recorded at 504 at 8:30 AM. PM 2.5 in the national capital remained more than 80 times the World Health Organizations’ limit. The concentration of PM2.5 in Delhi…