Toggle navigation
Places
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
Europe
Germany
North Rhine-Westphalia
Münster
Steinfurt
Horstmar
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Horstmar
Steinfurt, Münster
2025-03-16 15:00
AQI (US)
Moderate
Pollutants
|
Pollens
PM2.5
μg/m³
9.6
PM10
μg/m³
15
Alder
9.0
Ragweed
0
Mugwort
0
Birch
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
8℃
51%
17 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (US)
AQI (US)
Allergy Risk
PM2.5
PM10
Alder
Ragweed
Mugwort
Birch
Olive Tree
Grasses
Data Sources
https://www.eea.europa.eu
http://www.umweltbundesamt.de/
http://www.polleninfo.org
Get the App
Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.
iPhone, iPad
Android
Scan QR Code to Download App
iOS
Google Play
Download APK
Cities Nearby
Horstmar
AQI 52
Laer
AQI 52
Schöppingen
AQI 27
Steinfurt
AQI 52
Metelen
AQI 27
Rosendahl
AQI 52
Nordwalde
AQI 52
Billerbeck
AQI 49
Altenberge
AQI 52
Havixbeck
AQI 49
Wettringen
AQI 27
Air Matters © 2025