[video width="640" height="360" mp4="https://i.samaa.tv/wp-content/uploads//usr/nfs/sestore3/samaa/vodstore/digital-library/2016/11/Acid-Rain-2100-Lhr-Pkg-15-11-1.mp4"][/video] The toxic smog that has covered parts of Pakistan for weeks was finally dispelled by winter rain this week, but experts say it was ‘acid rain’ that was triggered by air pollution and may cause widespread skin diseases. Watch this report…