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Hertfordshire
Welwyn Hatfield
North Mymms
AQI (US)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
North Mymms
Welwyn Hatfield
2025-02-16 09:00
AQI (US)
Moderate
Pollutants
|
Pollens
PM2.5
μg/m³
24
PM10
μg/m³
28
O3
μg/m³
40
NO2
μg/m³
9
SO2
μg/m³
2
Alder
0.4
Ragweed
0
Mugwort
0
Birch
0
Olive Tree
0
Grasses
0
Weather
℃
℃
℉
3℃
79%
20 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
Places included
Brookmans Park
AQI 79
Data Sources
http://uk-air.defra.gov.uk/
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