March 25, 2022
The Tehran Air Quality Control Company has reported a grand total of just four days of “good” air quality in the past 12 months. The bulk of the time was reported as “moderate” (251 days), with 105 days as unhealthy for sensitive groups and seven days as unhealthy for all. Fortunately, no days were reported as very unhealthy or hazardous. (You will note that this totals 367 days, so someone needs some remedial math.)
