What is the air quality in Trondheim?

Trondheim, Norway has an annual US AQI of 38 (Reasonable) and average PM2.5 of 6.4 µg/m³, ranking #203 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Trondheim?

August is typically the cleanest month (AQI 32) and January the most polluted (AQI 46).

Where does Trondheim's air quality data come from?

PM2.5: 1998–2025 (monitors 2004–2007, 2010–2025, satellite 1998–2009, 2013, 2016, 2023–2024). Measured by government monitoring stations. Full sources are on the methodology page.

Trondheim, Norway — Air Quality & Clean City Guide 2026

Trondheim Air Quality Data

Global rank	City	Continent	AQI	PM2.5
203	Trondheim, Norway	Europe	AQI 38	PM2.5 6.4 µg/m³