For a few hours, Delhi is world´s most polluted
(WorldNews India)

On Friday evening and Saturday morning, Delhi emerged as the most polluted city in the world, as per two separate private AQI monitoring resources. Advertising Air Visual AQI monitors and Skymet both said Delhi was the most polluted city in the world Friday with an AQI of 527. On Saturday morning, the AQI was also close to 500. AQI is based...