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
Welwyn Hatfield
Hatfield South West
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Hatfield South West
Welwyn Hatfield, Hertfordshire
2025-03-18 23:00
CAQI (Europe)
Very Low
Pollutants
|
Pollens
PM10
μg/m³
18
PM2.5
μg/m³
10
Alder
7.1
Birch
1.0
Ragweed
0
Mugwort
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
2℃
85%
9 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
Allergy Risk
PM10
PM2.5
Alder
Birch
Ragweed
Mugwort
Olive Tree
Grasses
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
Hatfield South West
AQI 18
Hatfield
AQI 18
Hatfield Central
AQI 18
Hatfield East
AQI 18
Hatfield Villages
AQI 18
Welham Green and Hatfield South
AQI 18
Marshalswick East & Jersey Farm
AQI 18
Hill End
AQI 18
Hollybush
AQI 18
Brookmans Park
AQI 18
Handside
AQI 18
Air Matters © 2025