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Lappeenranta Seasonal Pollution

Lappeenranta usually records its highest OpenAQ-derived EPA AQI in May and its cleanest month in October. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Etelä-Karjala, Finland.

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Average EPA AQI

26

Rank 5 of 22 cities by average AQI

PM2.5

4.8

ug/m3 annualized city average

Seasonality

May

Cleanest: October

Health indicator

0.2

cigarette-equivalent per day

Yearly EPA AQI trend

0501002024Lappeenranta

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec
Lappeenranta
29
29
26
25
30
25
27
28
28
19
22
23

What this seasonality page measures

Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.

For Lappeenranta, the current global analytics build covers 331 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.

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