Toggle navigation
Places
AQI (US)
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
Watford District
Central
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Central
Watford District, Hertfordshire
2025-02-16 10:00
AQI (US)
Moderate
Pollutants
|
Pollens
PM2.5
μg/m³
23
PM10
μg/m³
27
O3
μg/m³
26
NO2
μg/m³
8
SO2
μg/m³
2
Alder
0.4
Ragweed
0
Mugwort
0
Birch
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
3℃
79%
22 kph
1 of 11
Historical Data
Hourly
Hourly
Daily
AQI (US)
AQI (US)
Allergy Risk
PM2.5
PM10
O3
NO2
SO2
Alder
Ragweed
Mugwort
Birch
Olive Tree
Grasses
Data Sources
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
Central
AQI 77
Watford
AQI 77
Vicarage
AQI 77
Oxhey
AQI 77
Bushey North
AQI 77
Holywell
AQI 77
Callowland
AQI 77
Tudor
AQI 77
Park
AQI 77
Bushey St James
AQI 77
Oxhey Hall & Hayling
AQI 77
Air Matters © 2025