Ritterhude Seasonal Pollution
Ritterhude usually records its highest OpenAQ-derived EPA AQI in March and its cleanest month in April. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Bremen, Germany.
Search city analytics
Average EPA AQI
42
Rank 95 of 297 cities by average AQI
PM2.5
8.7
ug/m3 annualized city average
Seasonality
March
Cleanest: April
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Ritterhude
42
43
59
35
46
42
37
42
44
39
45
39
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Ritterhude, the current global analytics build covers 341 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.