Air Quality Control Company: This summer, no day was registered with "clean air" in Tehran

9/23/2021

According to the Tehran Air Quality Control Company, no "clean air" days were recorded in the capital this summer. According to ISNA, this summer, 22 days were polluted and 71 days were "acceptable", and the most polluted day was recorded on July 7, when the ozone pollution index reached 162.

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