Air Pollution in Bielefeld: Real-time Air Quality Index and smog alert.

The latest data Last 7 days Quality of life
Current data from stations: Bielefeld-Ost Bielefeld Detmolder Straße
Locations: « Kreisfreie Stadt Bielefeld Bielefeld Sieker » Mitte »
Pollution and air quality forecast for Bielefeld. Today is Friday, May 2, 2025. The following air pollution values have been recorded for Bielefeld:
  1. ozone (O3) - 16 (Good)
  2. particulate matter (PM2.5) dust - 13 (Moderate)
  3. particulate matter (PM10) suspended dust - 20 (Moderate)
  4. nitrogen dioxide (NO2) - 66 (Moderate)
Real-time Air Quality Index (AQI) for Bielefeld, Wednesday, January 17, 2024: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in Bielefeld today? Is the air polluted in Bielefeld?. Is there smog?

Today (Wednesday, January 17, 2024) air quality is moderate in Bielefeld. Some pollutants in Bielefeld may slightly affect very few hypersensitive individuals. Air pollutants in Bielefeld may cause minor breathing discomfort to sensitive people.


How is the O3 level today in Bielefeld? (ozone (O3))
16 (Good)

What is the current level of PM2.5 in Bielefeld? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 13 (Moderate) For comparison, the highest level of PM2.5 in Bielefeld in the last 7 days was: 31 (Wednesday, January 10, 2024) and the lowest: 5 (Monday, January 15, 2024).

What is the level of PM10 today in Bielefeld? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Bielefeld is: 20 (Moderate) The highest PM10 values usually occur in month: 36 (September 2017). The lowest value of particulate matter PM10 pollution in Bielefeld is usually recorded in: October (4.5).

How high is the level of NO2? (nitrogen dioxide (NO2))
66 (Moderate)



Current data Wednesday, January 17, 2024, 9:00 AM

O3 16 (Good)

PM2,5 13 (Moderate)

PM10 20 (Moderate)

17 (Good)

NO2 66 (Moderate)

Data on air pollution from recent days in Bielefeld

index 2024-01-10 2024-01-11 2024-01-12 2024-01-13 2024-01-14 2024-01-15 2024-01-16 2024-01-17
no 48
Good		 47
Good		 4
Good		 1
Good		 4
Good		 1
Good		 2
Good		 3
Good
o3 8
Good		 8
Good		 30
Good		 40
Good		 32
Good		 61
Good		 52
Good		 45
Good
pm25 31
Moderate		 31
Moderate		 16
Moderate		 11
Good		 15
Moderate		 5
Good		 8
Good		 9
Good
no2 46
Moderate		 48
Moderate		 35
Good		 22
Good		 21
Good		 22
Good		 27
Good		 25
Good
pm10 57
Unhealthy for Sensitive Groups		 36
Moderate		 18
Good		 11
Good		 16
Good		 8
Good		 11
Good		 12
Good
data source »

Air pollution in Bielefeld from November 2019 to May 2020

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-10 2019-09 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2019-11
pm10 16 (Good) 25 (Moderate) 17 (Good) 13 (Good) 19 (Good) 11 (Good) 4.5 (Good) 6 (Good) 15 (Good) 19 (Good) 21 (Moderate) 30 (Moderate) 21 (Moderate) 30 (Moderate) 22 (Moderate) 21 (Moderate) 25 (Moderate) 27 (Moderate) 23 (Moderate) 23 (Moderate) 25 (Moderate) 29 (Moderate) 27 (Moderate) 30 (Moderate) 30 (Moderate) 31 (Moderate) 20 (Good) 17 (Good) 23 (Moderate) 21 (Moderate) 36 (Moderate) 5.9 (Good)
no2 16 (Good) 18 (Good) 13 (Good) 9.4 (Good) 24 (Good) 18 (Good) 4 (Good) 6.2 (Good) 8.3 (Good) 17 (Good) 17 (Good) 29 (Good) 15 (Good) 34 (Good) 22 (Good) 20 (Good) 22 (Good) 24 (Good) 25 (Good) 22 (Good) 27 (Good) 21 (Good) 27 (Good) 27 (Good) 29 (Good) 33 (Good) 23 (Good) 23 (Good) 28 (Good) 20 (Good) 33 (Good) 6.3 (Good)
o3 46 (Good) 53 (Good) 55 (Good) 59 (Good) 31 (Good) 23 (Good) 14 (Good) 17 (Good) 58 (Good) 62 (Good) 51 (Good) 39 (Good) 54 (Good) 20 (Good) 38 (Good) 34 (Good) 18 (Good) 24 (Good) 31 (Good) 44 (Good) 40 (Good) 49 (Good) 41 (Good) 57 (Good) 44 (Good) 33 (Good) 38 (Good) 35 (Good) 25 (Good) 34 (Good) 16 (Good) - (Good)
data source »

Quality of life in Bielefeld

Green and Parks in the City

Bielefeld 55%

Luxembourg: 83% Netherlands: 82% Czech Republic: 77% Belgium: 64% Liechtenstein: 88%

particulate matter PM2.5

Bielefeld 14 (Moderate)

Pleasure of spending time in the city

Bielefeld 64%

Luxembourg: 85% Netherlands: 88% Czech Republic: 77% Belgium: 64% Liechtenstein: 94%

particulate matter PM10

Bielefeld 23 (Moderate)

Air Pollution

Bielefeld 33%

Luxembourg: 19% Netherlands: 21% Czech Republic: 35% Belgium: 45% Liechtenstein: 6.3%

Garbage Disposal

Bielefeld 60%

Luxembourg: 84% Netherlands: 79% Czech Republic: 74% Belgium: 54% Liechtenstein: 100%

Availability and quality of drinking water

Bielefeld 70%

Luxembourg: 83% Netherlands: 92% Czech Republic: 84% Belgium: 70% Liechtenstein: 100%

Cleanliness and tidiness

Bielefeld 55%

Luxembourg: 82% Netherlands: 77% Czech Republic: 65% Belgium: 46% Liechtenstein: 94%

Noise and Light pollution

Bielefeld 55%

Luxembourg: 29% Netherlands: 31% Czech Republic: 44% Belgium: 54% Liechtenstein: 19%

Water Pollution

Bielefeld 40%

Luxembourg: 19% Netherlands: 17% Czech Republic: 28% Belgium: 42% Liechtenstein: 0%
Source: Numbeo


Bielefeld-Ost

Wednesday, January 17, 2024, 9:00 AM

O3 16 (Good)

ozone (O3)

PM2,5 12 (Good)

particulate matter (PM2.5) dust

PM10 14 (Good)

particulate matter (PM10) suspended dust

20 (Good)

index_name_no

NO2 44 (Moderate)

nitrogen dioxide (NO2)

Bielefeld Detmolder Straße

Wednesday, January 17, 2024, 9:00 AM

PM10 26 (Moderate)

particulate matter (PM10) suspended dust

14 (Good)

index_name_no

NO2 88 (Moderate)

nitrogen dioxide (NO2)

PM2,5 14 (Moderate)

particulate matter (PM2.5) dust

Bielefeld-Ost

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
no 4.1 2.3 0.65 1.1 0.13 2 36 33
o3 45 52 61 32 40 30 7.7 8.1
pm25 8.7 7.6 4.9 14 10 16 30 27
no2 18 15 8.9 13 14 19 38 41
pm10 11 11 6.8 15 11 17 34 36

Bielefeld Detmolder Straße

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
pm10 13 12 8.8 16 12 18 38 78
no2 32 39 34 28 31 50 58 50
no 1.4 1.6 1.6 6.2 1.8 5.9 57 63
pm25 9.4 8.1 5.8 15 11 16 32 35

DENW067

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-10 2019-09 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
no2 20 20 12 7.3 24 22 4.2 - 5.1 17 17 27 14 33 19 19 21 24 26 19 23 17 25 23 26 29 20 20 24 18 28
o3 46 53 55 59 31 23 14 17 58 62 51 39 54 20 38 34 18 24 31 44 40 49 41 57 44 33 38 35 25 34 16
pm10 16 24 15 12 19 11 4.1 5 - - - - - - - - - - - - - - - - - - - - - - -

DENW200

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
pm10 17 26 19 14 20 12 5.9 4.9 6.9 15 19 21 30 21 30 22 21 25 27 23 23 25 29 27 30 30 31 20 17 23 21 36
no2 13 17 14 12 24 15 6.3 3.9 6.2 12 17 17 31 17 35 24 21 24 23 25 24 30 24 29 32 33 37 26 26 32 23 38

* Pollution data source: https://openaq.org (EEA Germany) The data is licensed under CC-By 4.0