Toggle navigation
Places
AQI (India)
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
Cologne
Aachen
Herzogenrath
Merkstein
AQI (India)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Merkstein
Herzogenrath, Aachen
2026-04-06 01:00
AQI (India)
Good
Pollutants
|
Pollens
PM10
μg/m³
21.1
PM2.5
μg/m³
3.7
Birch
12.0
Alder
3.0
Ragweed
0
Mugwort
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
4℃
90%
7 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (India)
AQI (India)
Allergy Risk
PM10
PM2.5
Birch
Alder
Ragweed
Mugwort
Olive Tree
Grasses
Data Sources
http://www.polleninfo.org
https://www.luchtmeetnet.nl/
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
Herzogenrath
AQI 15
Alsdorf
AQI 9
Übach-Palenberg
AQI 22
Kerkrade
AQI 22
Eygelshoven
AQI 22
Baesweiler
AQI 22
Landgraaf
AQI 22
Würselen
AQI 9
Geilenkirchen
AQI 7
Heerlen
AQI 61
Bocholtz
AQI 9
Air Matters © 2026