According to the live AQI index, Lahore ranks first in the world in terms of air pollution, with the current air quality recorded at 194 level.

AQI as high as 151-200 is considered unhealthy, while an AQI rating between 201 to 300 is more harmful, and over 300 is Hazardous.

The AQI index report in its health recommendation, advised citizens of Lahore to avoid outdoor exercise, close windows to avoid dirty outdoor air, wear a mask outdoors, and run an air purifier for the fresh air.

The air becomes heavier in the winter as compared to summer, causing poisonous particles in the atmosphere to move downwards and making the atmosphere polluted. As a result, a layer of polluted particles, including large amounts of carbon and smoke, covers an area.

A wave of thick, toxic fog has enveloped Lahore city, causing tens of thousands of people to fall ill in the past few months.

Experts say the burning of crop residue at the start of the winter wheat-planting season is a key cause of the pollution.

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Punjab govt decides against Wednesday holiday this week

Punjab government considering ‘artificial rain’ to control smog

The CM of Punjab said that indiscriminate action should be continued against the brick kilns and factories that cause smog.

He also ordered the commissioners and deputy commissioners to take swift action against those who burn crop remains and sell substandard fuel.