Air quality in Bielefeld
European Air Quality Index (EAQI) based on particulates (PM2.5/PM10), nitrogen dioxide (NO₂) and ozone (O₃).
PM2.5
5.1 µg/m³
WHO limit 15
PM10
8.6 µg/m³
WHO limit 45
Hourly (12h)
EAQI
00:00
💨
PM2.5 5.1 µg/m³
24Fair
01:00
💨
PM2.5 5.2 µg/m³
20Good
02:00
💨
PM2.5 5.2 µg/m³
17Good
03:00
💨
PM2.5 5.7 µg/m³
18Good
04:00
💨
PM2.5 5.6 µg/m³
17Good
05:00
💨
PM2.5 5.6 µg/m³
16Good
06:00
💨
PM2.5 5.8 µg/m³
15Good
07:00
💨
PM2.5 6.5 µg/m³
14Good
08:00
💨
PM2.5 7.3 µg/m³
17Good
09:00
💨
PM2.5 6.7 µg/m³
26Fair
10:00
💨
PM2.5 6.1 µg/m³
36Fair
11:00
💨
PM2.5 6.9 µg/m³
51Moderate
5-day forecast
Max EAQI per day
Sun
💨
No data · UV Very high
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Luftqualität · Bielefeld
Bielefeld — air quality now
In Bielefeld the European Air Quality Index is around 24 (Fair). Fine particulates (PM2.5) are around 5.1 µg/m³, within the WHO daily guideline of 15. Levels are expected to stay broadly stable.