Air Pollution (NO₂) in HertfordshireLocal Authorities Ranked

Name: Air Quality
Creator: Department for Environment, Food and Rural Affairs
License: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

All 10 local authorities in Hertfordshire, ranked by air pollution (no₂). Data: Department for Environment, Food and Rural Affairs (2024), Open Government Licence v3.0.

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Rank	Local authority	Air Pollution (NO₂)
1	Watford	12 µg/m³ NO₂
2	Hertsmere	11 µg/m³ NO₂
3	Three Rivers	10 µg/m³ NO₂
4	Broxbourne	10 µg/m³ NO₂
5	St Albans	10 µg/m³ NO₂
6	Stevenage	10 µg/m³ NO₂
7	Welwyn Hatfield	9 µg/m³ NO₂
8	Dacorum	8 µg/m³ NO₂
9	North Hertfordshire	7 µg/m³ NO₂
10	East Hertfordshire	7 µg/m³ NO₂