What was the air quality like in Tehran from the beginning of the year?

According to the Fars News Agency’s urban correspondent, the air pollution index is currently at 74, according to the Air Pollution Control Company, and Tehran’s air quality is acceptable.
Also, during the last 24 hours, the air quality index was at 108 and the air in Tehran was polluted for sensitive groups of the society.
Since the beginning of the year, the capital has had 2 days of clean air, 200 days of acceptable air, 81 days of unhealthy air for sensitive groups of society and 6 days of polluted air for all people. Meanwhile, in the same period last year, Tehran had 15 days of clean air, 181 days of acceptable air, 87 days of unhealthy air for sensitive groups of society and 6 days of polluted air for all people.
Also, the highest temperature today is 7 and the lowest temperature is 1 ° C.
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