<p>LAHORE: Lahore was ranked the world’s most polluted major city on Thursday, with an Air Quality Index (AQI) of 419, as air pollution levels remained high across Punjab ahead of the peak <a href="https://www.dawn.com/news/1950531">smog season</a>.</p> <p>According to IQAir’s live global ranking for 10am to 11am on Oct 29, Lahore topped the list, followed b
