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
United Kingdom
England
Hertfordshire
Saint Albans District
Redbourn
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Redbourn
Saint Albans District, Hertfordshire
2026-04-24 23:00
CAQI (Europe)
Very Low
Pollutants
|
Pollens
PM10
μg/m³
11
PM2.5
μg/m³
6
Birch
0.6
Alder
0
Ragweed
0
Mugwort
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
7℃
69%
7 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
Allergy Risk
PM10
PM2.5
Birch
Alder
Ragweed
Mugwort
Olive Tree
Grasses
Data Sources
http://www.polleninfo.org
http://uk-air.defra.gov.uk/
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
Redbourn
AQI 11
Harpenden South
AQI 11
Harpenden North & Rural
AQI 11
Batchwood
AQI 11
Woodhall Farm
AQI 11
Verulam
AQI 11
Harpenden West
AQI 11
Harpenden
AQI 11
Adeyfield East
AQI 11
Bernards Heath
AQI 11
St Albans
AQI 11
Air Matters © 2026