With Air Quality Index (AQI) touching the mark 708, Lahore yet again, topped the world map in the list of most polluted cities of the world, reported Dawn. With PM2.5 concentrations spiking to 431 ...
Lahore: With Air Quality Index (AQI) touching the mark 708, Lahore yet again, topped the world map in the list of most polluted cities of the world, reported Dawn.With PM2.5 concentrations spiking ...
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