Tarragona Seasonal Pollution
Tarragona usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in March. The page uses OpenAQ-derived daily history for 5 mapped monitoring locations in Catalonia, Spain.
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Average EPA AQI
39
Rank 91 of 253 cities by average AQI
PM2.5
7.7
ug/m3 annualized city average
Seasonality
November
Cleanest: March
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Tarragona
-
-
29
33
31
36
39
48
34
36
49
45
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Tarragona, the current global analytics build covers 258 daily rows from 2024-03-08 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.