Tumba Seasonal Pollution
Tumba usually records its highest OpenAQ-derived EPA AQI in March and its cleanest month in November. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Stockholm, Sweden.
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Average EPA AQI
33
Rank 7 of 31 cities by average AQI
PM2.5
6.5
ug/m3 annualized city average
Seasonality
March
Cleanest: November
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Tumba
40
36
56
40
41
33
30
30
28
30
23
25
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Tumba, the current global analytics build covers 294 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.