What is the air quality in Loures?

Loures, Portugal has an annual US AQI of 50 (Reasonable) and average PM2.5 of 9.7 µg/m³, ranking #737 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Loures?

April is typically the cleanest month (AQI 47) and December the most polluted (AQI 55).

Where does Loures's air quality data come from?

PM2.5: 1998–2026 (satellite 1998–2024, model 2025–2026). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

Loures, Portugal — Air Quality & Clean City Guide 2026

Loures Air Quality Data

Global rank	City	Continent	AQI	PM2.5
737	Loures, Portugal	Europe	AQI 50	PM2.5 9.7 µg/m³