Watch: Pollution hits dangerous level, doctors declare health emergency

Reuters Delhi, India Nov 07, 2017, 11:29 AM(IST)
On Tuesday, the air quality index, which measures the concentration of poisonous particulate matter in the air, hit the "severe" level of 451 on a scale where the maximum reading is 500 and where anything above 100 is considered unhealthy by the CPCB
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