Cochrane vs Huasco AQI Comparison

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

Lower average AQI: Huasco (38-pt gap)PM2.5: Cochrane 45.0 ug/m3 · Huasco 18.4 ug/m3

Source: OpenAQ local exports mapped to AQI Now cities; city summaries cover 2024-01-19–2024-12-31 and 2024-01-01–2025-01-01.

Compare two cities

City A

City B

Cochrane vs Huasco

Cochrane

Aysén, Chile

106

PM2.5: 45.0 ug/m3
PM10: n/a ug/m3
Worst month: May
Trend: n/a

EPA category: Unhealthy for Sensitive Groups

Huasco

Atacama, Chile

PM2.5: 18.4 ug/m3
PM10: 30.0 ug/m3
Worst month: May
Trend: n/a

EPA category: Moderate

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

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

Cochrane

142

195

158

Huasco

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.