Hernani AQI Trends
Hernani AQI was measured in 2024, with a trend delta of n/a AQI points. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Basque Country, Spain.
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Average EPA AQI
37
Rank 101 of 253 cities by average AQI
PM2.5
7.2
ug/m3 annualized city average
Seasonality
January
Cleanest: March
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Hernani
57
40
25
34
32
38
38
36
36
34
44
43
What this trends page measures
Compare yearly air-quality direction, best years, worst years, and trend deltas.
For Hernani, the current global analytics build covers 319 daily rows from 2024-01-29 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.