Is image shows how the DiscovAir app will look

Pollution estimate provided by ATMOSYS system of a planned new road in Bratislava. The green line is the current road which would see an reduction of air pollution to low levels, and the red line is the proposed road which would experience high levels of pollution.

Air quality index map of Riga, Latvia for the Riga airText map

Daily forecast for the UK of air pollution levels

https://uk-air.defra.gov.uk