India tests 'anti-smog gun' in Delhi to combat air pollution

  • By Nandini Krishnamoorthy

As Delhi's air quality worsens with smog returning to the Indian capital this week, authorities in the city conducted a trial run of an "anti-smog gun" to combat its annual pollution crisis. Delhi is the world's most polluted capital, where pollution levels has reached 30 times the WHO's recommended limit.

Popular Videos
More videos