Grajewo Seasonal Pollution
Grajewo usually records its highest OpenAQ-derived EPA AQI in March and its cleanest month in July. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Podlaskie, Poland.
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Average EPA AQI
61
Rank 47 of 155 cities by average AQI
PM2.5
15.4
ug/m3 annualized city average
Seasonality
March
Cleanest: July
Health indicator
0.7
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Grajewo
73
61
78
59
56
51
41
48
65
62
70
74
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Grajewo, the current global analytics build covers 336 daily rows from 2024-01-03 to 2024-12-09. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.