Toggle navigation
Places
CAQI (Europe)
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
Rhein-Sieg-Kreis
Troisdorf
Spich
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Spich
Troisdorf, Rhein-Sieg-Kreis
2026-07-24 05:00
CAQI (Europe)
Very Low
Pollutants
|
Pollens
PM10
μg/m³
21
PM2.5
μg/m³
12
Grasses
6.0
Mugwort
3.0
Alder
0
Ragweed
0
Birch
0
Olive Tree
0
Weather
℃
℃
℉
14℃
80%
3 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
Allergy Risk
PM10
PM2.5
Grasses
Mugwort
Alder
Ragweed
Birch
Olive Tree
Places included
Site 20067
AQI 78
Data Sources
http://www.polleninfo.org
https://www.eea.europa.eu
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
Troisdorf
AQI 21
Niederkassel
AQI 24
Lohmar
AQI 23
Siegburg
AQI 21
Sankt Augustin
AQI 21
Rösrath
AQI 25
Wesseling
AQI 26
Bonn
AQI 21
Bornheim
AQI 26
Alfter
AQI 21
Brühl
AQI 26
Air Matters © 2026