What is the air quality in Alphen aan den Rijn?

Alphen aan den Rijn, Netherlands has an annual US AQI of 59 (Reasonable) and average PM2.5 of 13.6 µg/m³, ranking #1935 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Alphen aan den Rijn?

August is typically the cleanest month (AQI 51) and March the most polluted (AQI 67).

Where does Alphen aan den Rijn's air quality data come from?

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

Alphen aan den Rijn, Netherlands — Air Quality & Clean City Guide 2026

Alphen aan den Rijn Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1935	Alphen aan den Rijn, Netherlands	Europe	AQI 59	PM2.5 13.6 µg/m³