Artificial lungs outside Delhi hospital turn black in 48 hrs
An artificial model of lungs placed outside the parking of Sir Ganga Ram Hospital in Delhi on November 3 turned black from white by Monday noon. Ahead of Diwali, the national capital is witnessing PM2.5 levels over 20 times the safe limit prescribed by WHO. Further, the overall Air Quality Index was recorded at 342 on Monday, considered "very poor".