Lahore now 3rd most polluted city as air quality moves from `hazardous` to `unhealthy`
(WorldNews Pakistan)

Lahore`s air quality went from being `hazardous` to `unhealthy` with an Air Quality Index (AQI) ranking of 157 on Saturday, according to Air Visual. The Punjab capital, which was recorded to be the world`s second most polluted city for weeks, finally slid to the third spot. Uzbekistan`s Tashkent replaced Lahore as the second most polluted city, while Delhi retained its top position with a `very unhealthy` air quality ranking...