Air quality data and forecasts for the UK.
Segments show the number of current monitoring values for each level. The more green it is,
the more locations have good air at the moment.
Data collected 08:00 Tuesday 18 May 2021.
Current levels in detail
Sections show the number of locations for each forecast pollution level. The more green it is,
the more locations have a good air quality forecast.
Forecast published 06:00 Tuesday 18 May 2021.
Today's national forecast ~
Forecasts by county
Low 1 Low 2 Low 3 Moderate 4 Moderate 5 Moderate 6 High 7 High 8 High 9 Very High 10
The current data snapshot and forecast levels do not always coincide, for various reasons. Forecasting air quality is an inexact science,
even more so than forecasting the weather! Measurement data is very localised, and can be affected by factors specific to
the measuring sites. Forecasts are for the maximum levels expected during the day, and not all locations may reach the peak at the
Forecasts are published at 6am every day. If you view this site earlier in the morning, forecasts for "today" will still be yesterday,
and "tomorrow" will be today.