SmogRank / History / City race
Cities in Greece, worst air first, day by day
Each measured city's average over the 30 days to every day since January 2023, worst first. Find your own city to follow it through the race, or keep to one country.
The worst cities in Greece for PM2.5 over the 30 days to 6 Feb 2026: Volos 21.9 µg/m³, Asprópyrgos 13.5 µg/m³ and Athens 11.8 µg/m³.
- 1VolosThessaly21.9
- 2AsprópyrgosAttica13.5
- 3AthensAttica11.8
- 4GrevenáWest Macedonia10.9
- 5PylaíaCentral Macedonia10.5
- 6KhalándrionAttica9.0
- 7ThrakomakedónesAttica9.0
- 8KozániWest Macedonia8.7
Not counted on this day, too few days measured: Thessaloníki since 24 Jan 2026.
Cities counted each day
A city's number is its average over the 30 days, shown only when 21 of them were measured (5 of 7 on the 7-day race), the same minimum as the 30- and 7-day boards. A city whose monitors go quiet fades out where it stood rather than sliding down, so a gap never reads as cleaner air. Some large countries are thin or missing because their monitors' licences don't allow reuse. How we rank.
Not covered: the government monitoring networks of China and Turkey, which publish only on their own websites; we are building the readers for them. Most cities there are missing from this board, not clean. Why.