Tehran’s AQI in Fiscal 2022-23

Air Quality Index was “good” on only four days in the fiscal 2022-23 (ended March 20, 2023), charts published by Tehran Air Quality Control Company’s website, Airnow.tehran.ir, show. 
The company said 192 days turned out to be moderate, 132 days remained unhealthy for sensitive groups, two days remained unhealthy and another two were hazardous.
The index categorizes air conditions according to 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).
TAQCC indicates that AQI hit “good” quality on six days in the first month of the current fiscal year (March 21-April 20).