Date updated: 29/01/2021
With the app you can get daily air pollution forecasts, alerts for high air pollution and find low air pollution routes when walking or cycling in London.
The City of London Corporation has developed a free smartphone app which helps Londoners lower their impact on, and exposure to, air pollution.
The CityAir app version 2.0 is available for iOS and Android and is compatible with iPhone, iPad and Android devices.
Download it free of charge from the iTunes store and Google Play.
You can view a user's video for version 2.0 for iPhone and iPad.