Coyhaique vs El Monte AQI Comparison

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

Lower average AQI: El Monte (28-pt gap)PM2.5: Coyhaique 51.5 ug/m3 · El Monte 29.7 ug/m3

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

Compare two cities

City A

City B

Coyhaique vs El Monte

Coyhaique

Aysén, Chile

117

PM2.5: 51.5 ug/m3
PM10: 62.6 ug/m3
Worst month: May
Trend: n/a

EPA category: Unhealthy for Sensitive Groups

El Monte

Región Metropolitana, Chile

PM2.5: 29.7 ug/m3
PM10: 56.7 ug/m3
Worst month: July
Trend: n/a

EPA category: Moderate

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

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

Coyhaique

130

228

188

161

154

El Monte

121

120

150

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.