Alcalá de Henares Health Impact
Alcalá de Henares averaged 10.7 ug/m3 PM2.5, equal to 2.1x the WHO annual PM2.5 guideline and about 0.5 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Madrid, Spain.
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Average EPA AQI
Rank 22 of 253 cities by average AQI
PM2.5
10.7
ug/m3 annualized city average
Seasonality
August
Cleanest: March
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Alcalá de Henares, the current global analytics build covers 278 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.