• Today : Air pollution levels will be Moderate across Wales and parts of northwest and coastal areas of southern and southwest England today, where it will remain rather warm. Elsewhere, pollution levels will be mostly Low.
  • Tomorrow : Air pollution levels are expected to be mostly Low across the UK on Saturday.
  • Outlook : Air pollution levels are expected to be mostly Low during the period. However, there are likely to be occasional Moderate levels across parts of England and Wales on Sunday and Monday.

Issued at 23/07/2021 5am


Forecast provided by the Met Office


Measurement summary data provided by the Environment Agency

Updated at 23/07/2021 20:00


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Air pollution alerts

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Summary from 164 monitoring sites.

Generated at


Number of monitoring sites in each pollution band. Values are based on pollution level measured for the latest hour and are provisional.

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