SmogRank / World / South America / Chile / Ñuble

Most polluted cities in Ñuble, Chile

No city in Ñuble, Chile has enough readings to rank for the last 24 hours.

A city joins the 24-hour ranking with 18 hours of readings in the last 24; none here has that right now, so there is nothing to map or chart.

Last 7 days: 2 measured cities · Last 30 days: 2 measured cities · This year: 2 measured cities

Low1–3
Moderate4–6
High7–9
Very high10

The UK's Daily Air Quality Index (1 to 10), PM2.5 bands. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Estimated: cities without a monitor

Ñuble cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Chillán Viejo≈ 6 µg/m³Low
Coihueco≈ 6 µg/m³Low
Quillón≈ 5 µg/m³Low
Coelemu≈ 5 µg/m³Low

Updated 2026-10-02 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the UK DAQI PM2.5 sub-index.