Tortosa Seasonal Pollution
Tortosa usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in March. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Catalonia, Spain.
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Average EPA AQI
34
Rank 116 of 253 cities by average AQI
PM2.5
6.9
ug/m3 annualized city average
Seasonality
November
Cleanest: March
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Tortosa
43
35
21
31
24
33
37
46
30
28
46
32
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Tortosa, the current global analytics build covers 326 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.