La Serena Health Impact
La Serena averaged 19.3 ug/m3 PM2.5, equal to 3.9x the WHO annual PM2.5 guideline and about 0.9 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Coquimbo, Chile.
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Average EPA AQI
70
Rank 51 of 60 cities by average AQI
PM2.5
19.3
ug/m3 annualized city average
Seasonality
July
Cleanest: March
Health indicator
0.9
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
La Serena
63
62
62
66
80
76
84
71
75
66
68
66
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For La Serena, the current global analytics build covers 358 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.