Toggle navigation
Places
AQI (India)
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
Barley
AQI (India)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Barley
North Hertfordshire District
2026-05-03 15:00
AQI (India)
Good
Pollutants
|
Pollens
O3
μg/m³
26.1
PM2.5
μg/m³
11.8
NO2
μg/m³
12.4
PM10
μg/m³
15.2
SO2
μg/m³
0.4
Grasses
2.8
Olive Tree
1.2
Alder
1.0
Birch
0.6
Ragweed
0
Mugwort
0
Weather
℃
℃
℉
18℃
68%
11 kph
2 of 11
Historical Data
Hourly
Hourly
Daily
AQI (India)
AQI (India)
Allergy Risk
O3
PM2.5
NO2
PM10
SO2
Grasses
Olive Tree
Alder
Birch
Ragweed
Mugwort
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
Royston Meridian
AQI 20
Royston Heath
AQI 20
Ermine
AQI 20
Royston
AQI 20
Lower Green
AQI 20
Royston Palace
AQI 20
Melbourn
AQI 34
Wyddial
AQI 19
Littlebury, Chesterford & Wenden Lofts
AQI 20
Meldreth
AQI 20
Bassingbourn
AQI 22
Air Matters © 2026