Toggle navigation
Places
AQI (China)
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
AQI (China)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
North Hertfordshire District
Hertfordshire
2025-03-11 14:00
AQI (China)
Excellent
Pollutants
|
Pollens
PM2.5
μg/m³
28
PM10
μg/m³
36
Alder
4.6
Ragweed
0
Mugwort
0
Birch
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
7℃
65%
22 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (China)
AQI (China)
Allergy Risk
PM2.5
PM10
Alder
Ragweed
Mugwort
Birch
Olive Tree
Grasses
Places included
Arbury
AQI 40
Ashwell
AQI 40
Baldock East
AQI 40
Baldock Town
AQI 40
Barkway
AQI 43
Barley
AQI 43
Bygrave
AQI 40
Cadwell
AQI 40
Caldecote
AQI 40
Chesfield
AQI 40
Clothall
AQI 40
Codicote
AQI 40
Ermine
AQI 36
Graveley
AQI 40
Hexton
AQI 40
Hinxworth
AQI 40
Hitchin Bearton
AQI 40
Hitchin Highbury
AQI 40
Hitchin Oughton
AQI 40
Hitchin Priory
AQI 40
Hitchin Walsworth
AQI 40
Hitchwood, Offa and Hoo
AQI 40
Holwell
AQI 40
Ickleford
AQI 40
Kelshall
AQI 40
Kimpton
AQI 40
King's Walden
AQI 40
Knebworth
AQI 40
Langley
AQI 40
Letchworth East
AQI 40
Letchworth Grange
AQI 40
Letchworth South East
AQI 40
Letchworth South West
AQI 40
Letchworth Wilbury
AQI 40
Lilley
AQI 40
Newnham
AQI 40
Nuthampstead
AQI 50
Offley
AQI 40
Pirton
AQI 40
Preston
AQI 40
Radwell
AQI 40
Reed
AQI 36
Royston
AQI 36
Royston Heath
AQI 36
Royston Meridian
AQI 36
Royston Palace
AQI 36
Rushden
AQI 40
Saint Ippolyts
AQI 40
Saint Paul's Walden
AQI 40
Sandon
AQI 40
Therfield
AQI 36
Wallington
AQI 40
Weston
AQI 40
Weston and Sandon
AQI 40
Wymondley
AQI 40
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
Letchworth South East
AQI 40
Letchworth South West
AQI 40
Hitchin Walsworth
AQI 40
Chesfield
AQI 40
Letchworth East
AQI 40
Weston
AQI 40
Letchworth Wilbury
AQI 40
Baldock Town
AQI 40
Hitchin Bearton
AQI 40
Woodfield
AQI 40
Hitchin Highbury
AQI 40
Air Matters © 2025