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 125. According to the US EPA health standard, this air quality rating is categorized as Unhealthy (Sensitive). The current atmosphere in Santiago is influenced by a PM2.5 (fine particulate matter) concentration of 45.3 µg/m³ and PM10 levels recorded at 45.9 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 55.9 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 125 — categorised as Unhealthy (Sensitive). 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, Santiago has the highest AQI reading in Chile at 125 (Unhealthy (Sensitive)).
Which city in Chile has the best air quality right now?
Osorno currently has the lowest AQI in Chile at 26 (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:
- Osorno: AQI 26 — Good
- Puerto Montt: AQI 36 — Good
- Coronel: AQI 39 — Good
- Chillán: AQI 41 — Good
- Valdivia: AQI 41 — Good
What are the most polluted cities in Chile right now?
Top 5 cities in Chile with the worst (highest) AQI right now:
- Santiago: AQI 125 — Unhealthy (Sensitive)
- Calama: AQI 86 — Moderate
- San Bernardo: AQI 78 — Moderate
- Lo Prado: AQI 78 — Moderate
- Puente Alto: AQI 72 — Moderate
Air Quality Scales & Resources
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