Forecast published on Tue, 21 Nov 2017 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
Defra monitoring locations are shown by
Coloured boxes for value and level show latest snapshot data.
A grey box indicates that this data is not measured at this location.
A white box indicates that data is normally recorded here, but is missing
from the latest snapshot. Follow the links to individual stations for historical data.
Data supplied by the Met Office via Defra. © 2017 Crown copyright Defra via uk-air.defra.gov.uk, licenced under the Open Government Licence (OGL).