La Unión Health Impact
La Unión averaged 34.5 ug/m3 PM2.5, equal to 6.9x the WHO annual PM2.5 guideline and about 1.6 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Los Ríos, Chile.
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Average EPA AQI
98
Rank 9 of 60 cities by average AQI
PM2.5
34.5
ug/m3 annualized city average
Seasonality
May
Cleanest: January
Health indicator
1.6
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
La Unión
59
60
73
95
152
113
144
139
115
83
70
64
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For La Unión, the current global analytics build covers 350 daily rows from 2024-01-01 to 2024-12-31. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.