In 10 most polluted areas of Delhi, 93 per cent residents don't know what AQI means

In 10 most polluted areas of Delhi, 93 per cent residents don't know what AQI means

12:03 AM
Eighty-eight per cent of the respondents said that they had not seen any LED screens showing the different levels of air quality.

from Zee News :State http://bit.ly/2FA3nuN
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