Oldenburg Seasonal Pollution
Oldenburg 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 Lower Saxony, Germany.
Search city analytics
Average EPA AQI
44
Rank 70 of 297 cities by average AQI
PM2.5
9.2
ug/m3 annualized city average
Seasonality
March
Cleanest: July
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Oldenburg
45
44
67
34
48
42
31
43
46
44
48
45
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Oldenburg, the current global analytics build covers 318 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.