Acharnés Seasonal Pollution
Acharnés usually records its highest OpenAQ-derived EPA AQI in June and its cleanest month in May. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Attikí, Greece.
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Average EPA AQI
54
Rank 11 of 22 cities by average AQI
PM2.5
11.9
ug/m3 annualized city average
Seasonality
June
Cleanest: May
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Acharnés
56
56
56
56
37
57
55
53
54
52
56
53
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Acharnés, the current global analytics build covers 254 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.