Alto Hospicio vs Villarrica AQI Comparison

Side-by-side OpenAQ-derived air quality comparison for Alto Hospicio and Villarrica. Values use mapped daily PM2.5 and PM10 observations normalized to US EPA AQI.

Lower average AQI: Alto Hospicio (45-pt gap)PM2.5: Alto Hospicio 16.7 ug/m3 · Villarrica 43.4 ug/m3

Source: OpenAQ local exports mapped to AQI Now cities; city summaries cover 2024-01-01–2024-12-31 and 2024-04-07–2024-12-31.

Compare two cities

City A

City B

Alto Hospicio vs Villarrica

Alto Hospicio

Tarapacá, Chile

PM2.5: 16.7 ug/m3
PM10: n/a ug/m3
Worst month: March
Trend: n/a

EPA category: Moderate

Villarrica

Araucanía, Chile

110

PM2.5: 43.4 ug/m3
PM10: n/a ug/m3
Worst month: July
Trend: n/a

EPA category: Unhealthy for Sensitive Groups

Lower average AQI in this selected period: Alto Hospicio. Values are historical OpenAQ-derived city summaries, not live readings.

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

Alto Hospicio

Villarrica

136

122

151

140

118

What this comparison measures

Average EPA AQI — city-level daily AQI values averaged across the OpenAQ coverage window.
PM2.5 and PM10 — mapped monitor concentrations aggregated to daily city averages.
Seasonality — worst and cleanest months from the monthly city rollups.
Trend — difference between the earliest and latest yearly AQI average in this build.