What is the air quality in Buenos Aires?

Buenos Aires, Argentina has an annual US AQI of 59 (Reasonable) and average PM2.5 of 13.7 µg/m³, ranking #1962 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Buenos Aires?

January is typically the cleanest month (AQI 56) and June the most polluted (AQI 64).

Where does Buenos Aires'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.

Buenos Aires, Argentina — Air Quality & Clean City Guide 2026

Buenos Aires Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1962	Buenos Aires, Argentina	South America	AQI 59	PM2.5 13.7 µg/m³