This marks a drop from the already low figure of 10 clean air days in 2023, meaning residents had to wait on average 52 days for a single day of breathable, pollutant-free air.
Once considered a rare respite, clean air in the Iranian capital…
This marks a drop from the already low figure of 10 clean air days in 2023, meaning residents had to wait on average 52 days for a single day of breathable, pollutant-free air.
Once considered a rare respite, clean air in the Iranian capital…