Clean Air in Cities8.3.0 - App Store

The App illustrates the health impact of short and long-term exposure to air pollution on populations as a whole and offers daily forecast notifications. It shows concentrations of dangerous airborne particles (PM₂.₅) and ozone (O₃) for the latest hour at your current location from the OpenWeather service together with our Air Pollution Alert Index for short-term exposure over the last and next 24 hours.

The App also estimates the number of deaths attributable to long-term exposure to air pollution in England on a pro rata, calendar year-to-date basis and the time to the next attributable death as well as displaying the percentage of total deaths attributable to air pollution. It does not estimate or display the risk for an individual or the number of actual deaths from air pollution.

Users can also see estimates of total population-weighted exposure to annual average concentrations of PM₂.₅ in different local areas and/or regions in England. The alert bands for short and long-term exposure to air pollution are based on Clean Air in London's interpretation of the World Health Organisation's air quality guidelines published in September 2021.

Version History Improvements to top 5 monthly and annual alerts 8.3.0 Aug 29 Further improvements to accuracy of daily notifications 8.2.0 Aug 5 * Improved notifications
* Added annual pollution widgets
* Improvements to place search 8.1.0 Jul 20 Addresses stability issue on News tab 8.0.3 Mar 15 * Adds favourite editing to More tab 8.0.2 11/24/2025 Create up to five favourites
Bug fixes 8.0.1 10/27/2025 You are now able to add up to 4 favourite locations for quick access on the home tab as well as your current location. 8.0.0 10/20/2025 * Addresses issue with fetching authority historic data
* Addresses issue when incorrect data shown when tapping watch complication 7.0.4 09/28/2025 Stability improvements 7.0.3 07/21/2025 Adds annual PM2.5 and O3 to Watch App 7.0.1 07/14/2025 Much improved data refresh time 7.0.0 07/07/2025 Updated for change to OpenWeather API 6.1.2 06/06/2025 Presence of the English Authorities tab is now configurable and will only appear by default if the device region is set to UK. You can override this and enabled through More > Location if outside UK and wish to use it. 6.1.0 03/17/2025 Introducing the Clean Air in Cities watch app to show you your current and forecast pollution exposure right on your wrist. Includes an app and a set of complications to add to your favourite watch face. 6.0.0 03/10/2025 Updated to include latest 2023 data 5.2.0 02/24/2025 Adds new home and lock screen widgets for current PM₂.₅, current O₃ and Air Alert Index forecast. 5.1.0 01/29/2025 * Monthly maximum forecast alerts added
* Configure both monthly and annual maximum forecast alerts on More > Forecasts
* Updated forecast alert message text 5.0.4 11/11/2024 Updated alert messages 5.0.3 11/03/2024 Optimised data fetching
Improved notification messages 5.0.2 10/21/2024 Minor changes to messages
Updated store screenshots 5.0.1 09/23/2024 Will alert if current pollution level exceed top 5 incidents of the past year. 5.0.0 09/16/2024 Stability enhancements 4.0.6 06/08/2024 Further improvements to forecast notifications 4.0.5 05/14/2024 Improved forecast notifications 4.0.4 04/23/2024 Privacy statement updated 4.0.3 04/15/2024