What is the air quality in Lahti?

Lahti, Finland has an annual US AQI of 40 (Reasonable) and average PM2.5 of 7.3 µg/m³, ranking #271 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Lahti?

November is typically the cleanest month (AQI 35) and February the most polluted (AQI 46).

PM2.5: 1998–2024 (satellite). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

Global rank	City	Continent	AQI	PM2.5
271	Lahti, Finland	Europe	AQI 40	PM2.5 7.3 µg/m³