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STORY: New Delhi authorities have been continuously advising locals to avoid stepping out during sunrise or sunset - times of the day when smog settles the most.

As per The federal government's System of Air Quality and Weather Forecasting and Research (SAFAR), the Air Quality Index (AQI) remained in the "very poor" category while the quantities of PM10 and PM2.5 particles remained at 161 and 86 respectively.

“It feels a lot like I am smoking cigarettes and its effects are more harmful to children and the elderly,” said New Delhi resident Pritam Bhatt.

In Lahore, the air quality usually worsens during the November- February winter season when farmers in Punjab province, both on the Indian and Pakistani sides, start burning the crop stubble, producing thick smoke.

On Friday (December 2), the Air Quality Index (AQI) in Lahore soared to 400. AQI above 100 is termed unhealthy in which the public is at risk of experiencing irritation and pulmonary issues.