Calahorra Health Impact
Calahorra averaged 6.9 ug/m3 PM2.5, equal to 1.4x the WHO annual PM2.5 guideline and about 0.3 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 5 mapped monitoring locations in La Rioja, Spain.
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Average EPA AQI
30
Rank 136 of 253 cities by average AQI
PM2.5
6.9
ug/m3 annualized city average
Seasonality
November
Cleanest: September
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Calahorra
46
39
27
23
21
23
23
30
18
31
49
26
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Calahorra, the current global analytics build covers 342 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.