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
North Hertfordshire District
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
North Hertfordshire District
Hertfordshire
2025-12-09 03:00
CAQI (Europe)
Very Low
Pollutants
|
Pollens
PM10
μg/m³
10.5
PM2.5
μg/m³
6
Alder
0
Ragweed
0
Mugwort
0
Birch
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
11℃
94%
20 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
Allergy Risk
PM10
PM2.5
Alder
Ragweed
Mugwort
Birch
Olive Tree
Grasses
Places included
Arbury
AQI 10
Ashwell
AQI 10
Baldock East
AQI 10
Baldock Town
AQI 10
Barkway
AQI 15
Barley
AQI 15
Bygrave
AQI 10
Cadwell
AQI 10
Caldecote
AQI 10
Chesfield
AQI 10
Clothall
AQI 10
Codicote
AQI 11
Ermine
AQI 24
Graveley
AQI 11
Hexton
AQI 10
Hinxworth
AQI 10
Hitchin Bearton
AQI 10
Hitchin Highbury
AQI 10
Hitchin Oughton
AQI 10
Hitchin Priory
AQI 10
Hitchin Walsworth
AQI 10
Hitchwood, Offa and Hoo
AQI 11
Holwell
AQI 10
Ickleford
AQI 10
Kelshall
AQI 10
Kimpton
AQI 11
King's Walden
AQI 11
Knebworth
AQI 11
Langley
AQI 11
Letchworth East
AQI 10
Letchworth Grange
AQI 10
Letchworth South East
AQI 10
Letchworth South West
AQI 10
Letchworth Wilbury
AQI 10
Lilley
AQI 10
Newnham
AQI 10
Nuthampstead
AQI 27
Offley
AQI 10
Pirton
AQI 10
Preston
AQI 11
Radwell
AQI 10
Reed
AQI 24
Royston
AQI 24
Royston Heath
AQI 24
Royston Meridian
AQI 24
Royston Palace
AQI 24
Rushden
AQI 10
Saint Ippolyts
AQI 11
Saint Paul's Walden
AQI 11
Sandon
AQI 10
Therfield
AQI 24
Wallington
AQI 10
Weston
AQI 10
Weston and Sandon
AQI 10
Wymondley
AQI 10
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
Letchworth South East
AQI 10
Letchworth South West
AQI 10
Hitchin Walsworth
AQI 10
Chesfield
AQI 10
Letchworth East
AQI 10
Weston
AQI 10
Letchworth Wilbury
AQI 10
Baldock Town
AQI 10
Hitchin Bearton
AQI 10
Woodfield
AQI 11
Hitchin Highbury
AQI 10
Air Matters © 2025