The Iranian capital’s residents inhaled less polluted air in October compared with the same period of last year, data from Tehran Municipality show.
Charts regularly published by Tehran Air Quality Control Company’s website, Airnow.tehran.ir, indicate that the “good” quality status was not recorded even for a day and has become a thing of the past.
Mostly “moderate” status dominated the month, keeping Air Quality Index between 51 and 100 for 26 days. Oct. 31 is also forecast by TAQCC to have a moderate air quality.
AQI categorizes conditions dictated by a measure of polluting matters into good (0-50), moderate (51-100), unhealthy for sensitive groups (101-150), unhealthy (151-200), very unhealthy (201-300) and hazardous (301-500).
October 30, 2021 18:27
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Tehran Air Gets Cleaner in Oct.
Air quality monitoring stations in the capital city of Tehran have recorded 27 “moderate” and four “unhealthy” days, and not a single day with “good” air quality, for the sensitive group in October
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