Toggle navigation
Places
AQC (Australia)
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
Harpenden South
AQC (Australia)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Harpenden South
Saint Albans District, Hertfordshire
2025-12-20 22:00
AQC (Australia)
Good
Pollutants
|
Pollens
PM10
μg/m³
12
PM2.5
μg/m³
7
Alder
0
Ragweed
0
Mugwort
0
Birch
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
7℃
93%
19 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQC (Australia)
AQC (Australia)
Allergy Risk
PM10
PM2.5
Alder
Ragweed
Mugwort
Birch
Olive Tree
Grasses
Data Sources
http://uk-air.defra.gov.uk/
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
Harpenden South
AQI
Harpenden West
AQI
Harpenden
AQI
Harpenden North & Rural
AQI
Harpenden East
AQI
Redbourn
AQI
Sandridge & Wheathampstead
AQI
Sandridge
AQI
Batchwood
AQI
Bernards Heath
AQI
Marshalswick West
AQI
Air Matters © 2025