Pollution forecast

Defra air quality alert system – check pollution levels near you

The Department for the Environment, Food and Rural Affairs (Defra) provides a daily air quality forecast with information based on five pollutants: ozone, nitrogen dioxide (NO2), sulphur dioxide (SO2), Particles (PM2.5 and PM10) that can have an impact on your health.

The forecasts use the Daily Air Quality Index (DAQI) that is designed to show complex air quality information on a simple 10 point scale to communicate the levels of pollution expected.  Each of the bands/levels of the DAQI has associated health information and advice for the general public as well as those that may be more sensitive to air pollution.

Forecasts are displayed on a UK map but are also available for 5000 specific locations over the UK. By searching for your postcode you can see air quality forecasts for the locations of most interest to you.