Toggle navigation
Places
AQI (China)
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
Düsseldorf
Viersen
Grefrath
Site 26516
AQI (China)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Site 26516
Grefrath, Düsseldorf
2026-04-28 20:54
AQI (China)
Excellent
Pollutants
|
Pollens
PM10
μg/m³
2.3
PM2.5
μg/m³
0.3
Birch
9.0
Grasses
6.0
Alder
0
Ragweed
0
Mugwort
0
Olive Tree
0
Weather
℃
℃
℉
14℃
40%
17 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (China)
AQI (China)
Allergy Risk
PM10
PM2.5
Birch
Grasses
Alder
Ragweed
Mugwort
Olive Tree
Data Sources
http://luftdaten.info
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
Grefrath
AQI 49
Nettetal
AQI 49
Kempen
AQI 26
Wachtendonk
AQI 49
Tönisvorst
AQI 26
Viersen
AQI 35
Venlo
AQI 49
Straelen
AQI 49
Kerken
AQI 49
Tegelen
AQI 49
Schwalmtal
AQI 22
Air Matters © 2026