Tallinn Seasonal Pollution
Tallinn usually records its highest OpenAQ-derived EPA AQI in March and its cleanest month in December. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Harju County, Estonia.
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Average EPA AQI
14
Rank 7 of 7 cities by average AQI
PM2.5
n/a
ug/m3 annualized city average
Seasonality
March
Cleanest: December
Health indicator
n/a
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Tallinn
-
-
28
19
23
15
12
11
13
9
8
7
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Tallinn, the current global analytics build covers 257 daily rows from 2024-03-25 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.