The air quality in Pakistan's smog-choked city of Lahore on Sunday fell below the threshold considered "hazardous" for humans for the first time in two weeks.
As several states in northern India continue to battle worsening air pollution, areas in Pakistan are recording the worst air quality index (AQI) in the world this November. In the worst case of air ...
A new analysis has ranked the cities with the lowest air pollution around the world — but some experts contest the findings.
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