Delhi-NCR Shrouded In Haze As Air Quality Plunges To 'Severe Plus' With AQI 492 — IN PICS

Thick smog envelops Delhi as air quality slips further to the 'Severe Plus' category. CM Arvind Kejriwal announced closure of primary schools for next two days. (Source: @ABPNews)

Smog lowers visibility near residential building in Delhi, the concentration of PM2.5 exceeded the safe limit of 60 micrograms per cubic metre by seven to eight fold at various locations throughout the region. (Source: @ABPNews)

A man wearing a mask rides a two-wheeler amid hazy weather conditions, in New Delhi. (Source: PTI)

An auto rickshaw moves on a Delhi road with a passenger wearing a mask seen on a hazy morning. (Source: PTI)

Commuters on a road shrouded in smog in Delhi on Friday morning. (Source: PTI)