SmogRank / World / South America / Chile / Valparaiso

Most polluted cities in Valparaiso, Chile

4 measured cities, last 30 days; 4 above the WHO 24-hour guideline. Worst: Concón at 20.4 µg/m³, #373 in the world.

Santiago Metropolitan: 3 measured citiesCoquimbo Region: 2 measured citiesValparaiso: 4 measured citiesO'Higgins Region: 2 measured cities#4 Viña del Mar: 17.9 µg/m³#3 Quillota: 18.9 µg/m³#2 Quintero: 19.7 µg/m³#1 Concón: 20.4 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Concón 20.4 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every measured city in Valparaiso, Chile, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Concón 72
  2. 2Quintero 71
  3. 3Quillota 69
  4. 4Viña del Mar 67
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). 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

Valparaiso 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
Valparaíso≈ 15 µg/m³Moderate
Villa Alemana≈ 17 µg/m³Moderate
San Antonio≈ 14 µg/m³Moderate
Los Andes≈ 10 µg/m³Moderate
San Felipe≈ 23 µg/m³Moderate
La Calera≈ 23 µg/m³Moderate
Limache≈ 17 µg/m³Moderate
La Ligua≈ 17 µg/m³Moderate
Casablanca≈ 15 µg/m³Moderate
Cabildo≈ 17 µg/m³Moderate
Cartagena≈ 14 µg/m³Moderate
La Cruz≈ 23 µg/m³Moderate
San Esteban≈ 10 µg/m³Moderate
El Quisco≈ 15 µg/m³Moderate
Putaendo≈ 23 µg/m³Moderate

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SmogRank, most polluted cities in Valparaiso, Chile, PM2.5, last 30 days to 2 Oct 2026, 08:00 UTC, smogrank.com/cl/region/valparaiso?w=30d.

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Updated 2026-10-02 08:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.