Some people say not to worry about the air

Air Quality Forecast for Hertfordshire

Forecast published on Tue, 12 Nov 2019 06:00:00 +0000.

Values are for predicted maximum pollution levels, ranging from 1 (lowest pollution, best air quality) to 10 (highest pollution, worst air quality).

Colour key: Lowest pollution Highest pollution

There are no Defra monitoring locations in Hertfordshire

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Forecast locations in Hertfordshire

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Data supplied by the Met Office via Defra. © 2019 Crown copyright Defra via, licenced under the Open Government Licence (OGL).