SmogRank / Asprópyrgos / Thessaloníki
Asprópyrgos vs Thessaloníki: PM2.5 compared
Over the last year, Thessaloníki's air was about 1.6× as polluted as Asprópyrgos's: PM2.5 averaged 18.6 µg/m³ against 11.7, on the 103 days both cities were measured. Thessaloníki had the dirtier air on 85 of those days, Asprópyrgos on 18. Thessaloníki was over the WHO's daily guideline of 15 µg/m³ on 54 of them, Asprópyrgos on 17.
Right now
The last year, day by day
Month by month
Year by year
| Year | Asprópyrgos | Thessaloníki | Days Asprópyrgos was worse |
|---|---|---|---|
| 2026 so far | 57 | 63 | 16 |
| 2025 | 56 | 67 | 53 |
| 2024 | 63 | 67 | 99 |
| 2023 | 65 | 67 | 164 |
Means in US AQI over the days both cities were measured that year; a year shows once they share 30 such days.
Each city's worst days
Asprópyrgos
Thessaloníki
- 19 Dec 2025151
- 20 Dec 2025130
- 16 Dec 2025116
Daily means in US AQI, over the days both cities were measured in the last year. Each date opens that day's world board.
Compare either city with another
Asprópyrgos
Side by side with Acharnés, Kozáni, Gujranwala.
Thessaloníki
Side by side with Pylaía, Gujranwala.
Use this page
SmogRank, PM2.5 daily means compared, Asprópyrgos and Thessaloníki, 19 Oct 2025 – 20 Sep 2026, smogrank.com/compare/gr-aspropyrgos/gr-thessaloniki (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.
Updated 2026-10-06 21:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.