Ozone pollution highest in Delhi among NCR cities in last 3 years

Compared to Delhi, Noida experienced 49 days on which ozone was high, Gurugram recorded 48 days, Faridabad encountered 11 such days, and Ghaziabad encountered eight days of high ozone, in the last three years.

from Hindustan Times - topnews http://bit.ly/2LqqhXz
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