Summary
Air quality in Santiago is hazardous (AQI 500), driven by CO. Health alert: everyone should avoid all outdoor activity.
Current Air Quality Index
500
Hazardous
050100150200300500
Dominant Pollutant: CO
Health Advice
Health warning of emergency conditions. The entire population is likely to be affected. Stay indoors and keep windows closed.
Pollutant Breakdown
Pollutant Concentration Unit
PM2.5 29.0 µg/m³
PM10 62.0 µg/m³
NO₂ 95.1 ppb
O₃ 0.6 ppb
CO (dominant) 1,511.1 ppm
SO₂ 0.0 ppb
Event Details
Coords: -33.4372, -70.6506
CL
Last update: 15 minutes ago
Updated: 2 hours ago
Hazardous
About the Air Quality Index

The AQI is a dimensionless index from 0 to 500, where lower values indicate better air quality. It is calculated from the six criteria pollutants.

Good (0–50)
Moderate (0–100)
Unhealthy for Sensitive Groups (0–150)
Unhealthy (0–200)
Very Unhealthy (0–300)
Hazardous (0–500)
Data via