Not just Delhi, other NCR towns too are struggling. Delhi's AQI was at 445, Gurugram 400 and Ghaziabad and Noida both had readings of 359

The AQI in Delhi is about 30.07 times higher than the PM2.5 standard value set by WHO guidelines, equating to the health impact of smoking about 10 to 11 cigarettes daily.

Delhi-NCR woke up to a thick blanket of smog on Wednesday as air quality remained in the ‘severe’ category for the third consecutive day as the cold gripped the region.