Chile AQI Analytics
OpenAQ-derived PM2.5 and PM10 history for 60 cities, mapped to AQI Now city pages and normalized to the US EPA AQI scale.
Search city analytics
- Cities
- 60
- Locations
- 132
- Daily rows
- 20,547
- Avg EPA AQI
- 85
with OpenAQ history
mapped monitors
2024-01-01 to 2025-01-01
29.2 ug/m3 PM2.5
Current data story
The highest average AQI in this pilot slice is Coyhaique, with an EPA AQI average of 117 and PM2.5 around 51.5 ug/m3. Its worst month is May.
Source: OpenAQ local parquet plus raw CSV coordinate recovery. Build 2026-05-12T00:27:56.105574+00:00.
Analytics tools
City AQI Comparison
LiveRank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI.
60 eligible cities
Open toolAQI Trends
LiveCompare yearly air-quality direction, best years, worst years, and trend deltas.
20 eligible cities
Open toolSeasonal Pollution
LiveFind each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
60 eligible cities
Open toolHealth Impact
LiveTranslate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
57 eligible cities
Open toolCities ranked by average AQI
| City | Avg AQI | PM2.5 | Worst month | Trend | Coverage |
|---|---|---|---|---|---|
| Coyhaique Aysén, Chile | 117 | 51.5 ug/m3 | May | n/a | 367 days · 2 locations |
| Nacimiento Biobío, Chile | 113 | 46.5 ug/m3 | May | n/a | 367 days · 3 locations |
| Villarrica Araucanía, Chile | 110 | 43.4 ug/m3 | July | n/a | 266 days · 1 locations |
| Osorno Los Lagos, Chile | 106 | 43.0 ug/m3 | May | n/a | 363 days · 3 locations |
| Cochrane Aysén, Chile | 106 | 45.0 ug/m3 | May | n/a | 188 days · 1 locations |
| Puerto Varas Los Lagos, Chile | 106 | 41.1 ug/m3 | July | n/a | 366 days · 1 locations |
| El Bosque Región Metropolitana, Chile | 101 | 35.9 ug/m3 | July | n/a | 357 days · 1 locations |
| Alerce Los Lagos, Chile | 99 | 36.2 ug/m3 | July | n/a | 360 days · 1 locations |
| La Unión Los Ríos, Chile | 98 | 34.5 ug/m3 | May | n/a | 350 days · 1 locations |
| Los Cerrillos Región Metropolitana, Chile | 97 | 33.7 ug/m3 | July | n/a | 363 days · 1 locations |
| Renca Región Metropolitana, Chile | 96 | 34.0 ug/m3 | July | n/a | 366 days · 2 locations |
| Curanilahue Biobío, Chile | 96 | 34.2 ug/m3 | May | n/a | 359 days · 1 locations |
| La Florida Región Metropolitana, Chile | 94 | 31.7 ug/m3 | July | n/a | 364 days · 1 locations |
| Rengo Libertador General Bernardo O’Higgins, Chile | 94 | 32.3 ug/m3 | July | n/a | 341 days · 1 locations |
| Rancagua Libertador General Bernardo O’Higgins, Chile | 94 | 32.7 ug/m3 | July | n/a | 365 days · 2 locations |
| Talcahuano Biobío, Chile | 93 | 32.8 ug/m3 | May | n/a | 367 days · 2 locations |
| Hualqui Biobío, Chile | 93 | 32.2 ug/m3 | July | n/a | 335 days · 1 locations |
| Padre Las Casas Araucanía, Chile | 93 | 32.2 ug/m3 | July | n/a | 367 days · 5 locations |
| Curicó Maule, Chile | 92 | 32.2 ug/m3 | July | n/a | 365 days · 1 locations |
| Quilicura Región Metropolitana, Chile | 92 | 30.9 ug/m3 | July | n/a | 359 days · 1 locations |
| Coronel Biobío, Chile | 92 | 31.1 ug/m3 | July | n/a | 367 days · 6 locations |
| Puerto Aysén Aysén, Chile | 92 | 30.6 ug/m3 | May | n/a | 361 days · 1 locations |
| Ñiquén Ñuble, Chile | 92 | 33.2 ug/m3 | May | n/a | 262 days · 2 locations |
| Chillán Ñuble, Chile | 91 | 31.7 ug/m3 | May | n/a | 362 days · 2 locations |