Air Quality Index (AQI) in Chile 🇨🇱
Live Air Quality Index (AQI) and PM2.5 Levels in Chile
Currently, the Air Quality Index (AQI) in Santiago, the capital of Chile, is measured at a score of 155. According to the US EPA health standard, this air quality rating is categorized as Unhealthy. The current atmosphere in Santiago is influenced by a PM2.5 (fine particulate matter) concentration of 61.0 µg/m³ and PM10 levels recorded at 62.2 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 68.0 µg/m³.
Beyond the primary urban hubs, atmospheric conditions and smog levels fluctuate across Chile based on industrial output, traffic density, and local weather patterns. Real-time pollution data and respiratory health alerts are also being actively monitored in cities like Puente Alto, Antofagasta, Viña del Mar, Valparaíso and Talcahuano. Tracking these air quality metrics is essential for residents nationwide to manage outdoor exposure and maintain respiratory safety during periods of increased particulate concentration.
Chile Air Quality: Major Cities Index
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Pollution Monitor & AQI Forecast: Chile Regions
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* Air Quality Index (AQI) data for Chile is calculated using the US EPA standard. Information is processed from multiple monitoring stations detecting PM2.5, PM10, and gaseous pollutants to ensure accuracy for respiratory health planning.
Frequently Asked Questions about Air Quality in Chile
What is the air quality in Chile right now?
The current AQI in Santiago (capital of Chile) is 155 — categorised as Unhealthy. Conditions vary across the country — see AQI for all cities for a complete picture.
Which city in Chile has the worst air quality right now?
Right now, San Bernardo has the highest AQI reading in Chile at 164 (Unhealthy).
Which city in Chile has the best air quality right now?
Puerto Montt currently has the lowest AQI in Chile at 2 (Good).
What is the PM2.5 level in Santiago today?
Is the air in Chile safe to breathe today?
Most cities in Chile currently report acceptable air-quality levels, though local conditions vary.
What are the cleanest cities in Chile right now?
Top 5 cities in Chile with the best (lowest) AQI right now:
- Puerto Montt: AQI 2 — Good
- Osorno: AQI 2 — Good
- Valdivia: AQI 2 — Good
- Temuco: AQI 5 — Good
- Chillán: AQI 15 — Good
What are the most polluted cities in Chile right now?
Top 5 cities in Chile with the worst (highest) AQI right now:
- San Bernardo: AQI 164 — Unhealthy
- Lo Prado: AQI 164 — Unhealthy
- Santiago: AQI 155 — Unhealthy
- Calama: AQI 104 — Unhealthy (Sensitive)
- Rancagua: AQI 78 — Moderate
Wondering what these AQI numbers mean for your health? Our worldwide air quality guide explains every level of the AQI, PM2.5, PM10, ozone, NO2, CO and SO2 scales, with practical health advice for each range.
→ Understanding Air Quality Levels: read the full guide