Smog in Bielefeld — Live Data: AQI, Fine Dust, Wind, UV and Health Advice

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Latest air quality data: Bielefeld

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Pollution and air quality forecast for Bielefeld. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Bielefeld:

particulate matter (PM2.5) dust - 9 (Good)
particulate matter (PM10) suspended dust - 15 (Good)
ozone (O3) - 54 (Good)
nitrogen dioxide (NO2) - 6 (Good)
sulfur dioxide (SO2) - 2 (Good)
carbon monoxide (CO) - 172 (Good)

Real-time Air Quality Index (AQI) for Bielefeld, Thursday, August 27, 2026: 1.

AQI 1 Good

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

Today (Thursday, August 27, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Bielefeld.

What is the current level of PM2.5 in Bielefeld? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 9 (Good) For comparison, the highest level of PM2.5 in Bielefeld in the last 7 days was: 9 (Thursday, August 27, 2026) and the lowest: 6 (Tuesday, August 25, 2026).

What is the level of PM10 today in Bielefeld? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Bielefeld is: 15 (Good)

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

How high is the level of NO2? (nitrogen dioxide (NO2))
6 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
2 (Good)

How high is the CO level? (carbon monoxide (CO))
172 (Good)

Current data Thursday, August 27, 2026 at 3:00 AM

PM2,5 9 (Good)

PM10 15 (Good)

O3 54 (Good)

NO2 6 (Good)

SO2 2 (Good)

CO 172 (Good)

Data on air pollution from recent days in Bielefeld

index	2026-08-27	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20
pm25	9 Good	7 Good	6 Good	7 Good	6 Good	6 Good	8 Good	9 Good
pm10	13 Good	11 Good	9 Good	13 Good	11 Good	9 Good	12 Good	11 Good
o3	78 Moderate	68 Good	69 Good	60 Good	61 Good	56 Good	52 Good	55 Good
no2	5 Good	6 Good	4 Good	6 Good	3 Good	5 Good	10 Good	10 Good
so2	1 Good	1 Good	1 Good	1 Good	0 Good	1 Good	2 Good	2 Good
co	174 Good	171 Good	160 Good	178 Good	164 Good	157 Good	181 Good	205 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

Thursday, August 27, 2026 at 3:00 AM

PM2,5 9.2 (Good)

particulate matter (PM2.5) dust

PM10 15 (Good)

particulate matter (PM10) suspended dust

O3 54 (Good)

ozone (O3)

NO2 5.5 (Good)

nitrogen dioxide (NO2)

SO2 1.6 (Good)

sulfur dioxide (SO2)

CO 172 (Good)

carbon monoxide (CO)

Bielefeld

index	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26	2026-08-27
pm25	8.6	7.7	5.7	6	7.5	5.5	7	8.6
pm10	11	12	9.1	11	13	8.7	11	13
o3	55	52	56	61	60	69	68	78
no2	9.9	9.6	4.6	3.2	6.3	4.4	5.6	5.3
so2	2.2	2.4	0.57	0.4	0.67	0.93	1.4	1.1
co	205	181	157	164	178	160	171	174

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

🌦️ Weather · 16-day Forecast — Bielefeld

16-day weather forecast for Bielefeld: today around 24°C (clear sky), lows near 9°C. Daily temperature and conditions, updated every day. A moderate breeze (about 15 km/h) is partially dispersing pollutants today.

☀️ UV Index · 16-day Forecast — Bielefeld

The UV index in Bielefeld today is 3.7 (moderate) — unprotected fair skin can burn in about 55 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Bielefeld — compare nearby locations.

Hanover 9 µg/m³
Dortmund 10 µg/m³
Bochum 9 µg/m³
EnschedeNetherlands 10 µg/m³
Bremen 8 µg/m³
Essen 9 µg/m³
Wuppertal 8 µg/m³
Duisburg 10 µg/m³

Frequently asked questions

Is the air safe to breathe in Bielefeld today?

The current average PM2.5 across Bielefeld is about 9 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Bielefeld?

Right now PM2.5 in Bielefeld averages about 9 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Bielefeld?

Over the past week, the highest daily PM2.5 in Bielefeld was recorded on Thursday, August 20 (about 9 µg/m³).

What is the UV index in Bielefeld today?

The UV index in Bielefeld today is 3.7 (moderate) — unprotected fair skin can burn in about 55 minutes.

Does today's wind help disperse smog in Bielefeld?

A moderate breeze (about 15 km/h) is partially dispersing pollutants today.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.