Photo Gallery: A bird's-eye view of polluted Delhi-NCR

Severe air pollution in Delhi and its nearby areas have been making headlines for the past one month. The air pollution levels in Delhi-NCR remained in the 'severe' category for the third consecutive day despite the implementation of the Odd-Even scheme. Ghaziabad, Faridabad, Gurugram and Noida were engulfed by a thick blanket of smog in the morning which reduced visibility on the roads and caused problems to commuters. 

The overall Air Quality Index (AQI) in Delhi on Friday was recorded at 482 with PM10 being 504 and PM2.5 - 332. The AQI recorded near Mathura Road in Delhi was 554 (PM10) while near the Indira Gandhi International (IGI) airport, the AQI stood at 560 (PM10), Chandni Chowk recorded an AQI of 484 (PM10) and 488 (PM2.5).

On Friday, Delhi earned the dubious distinction of becoming the most polluted major city in the world, as per data by Air Visual on the World AQI rankings.

Delhi air quality broke all records on November 5, when it was in the hazardous range for nine consecutive days, making this the longest spell of hazardous air quality since public records began, according to Air Visual.