Thessaloníki reports an annual PM2.5 of 15.0 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Compared across Greece
Thessaloníki: 15.0 µg/m³. Typical range in Greece: 12.5–14.6 µg/m³. Low anchor: Préveza, 9.6 µg/m³. High anchor: Athens, 15.3 µg/m³.
60 cities tracked