Karczew Seasonal Pollution
Karczew usually records its highest OpenAQ-derived EPA AQI in November and its cleanest month in December. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Mazowieckie, Poland.
Search city analytics
Average EPA AQI
133
Rank 1 of 155 cities by average AQI
PM2.5
52.6
ug/m3 annualized city average
Seasonality
November
Cleanest: December
Health indicator
2.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Karczew
-
-
-
-
-
-
-
-
-
-
134
133
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Karczew, the current global analytics build covers 37 daily rows from 2024-11-25 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.