Kielce Seasonal Pollution
Kielce usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in May. The page uses OpenAQ-derived daily history for 4 mapped monitoring locations in Świętokrzyskie, Poland.
Search city analytics
Average EPA AQI
56
Rank 69 of 155 cities by average AQI
PM2.5
18.8
ug/m3 annualized city average
Seasonality
December
Cleanest: May
Health indicator
0.9
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Kielce
67
60
69
21
19
29
50
57
60
74
80
84
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Kielce, the current global analytics build covers 365 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.