Street-by-street information on air pollution

The YourAir service combines regional air quality forecasts from PROMOTE partners with information on local road traffic patterns. The regional air quality information is important because not all pollution affecting a city actually originates there – studies show that up to half may originate elsewhere. The forecasts include predictions of overall effects on health on an index from one to ten. The YourAir service resolves air pollution down to the scale of individual streets – highest levels are often found along routes with heavy traffic or other pollution sources, so information on street-by-street changes in pollution help vulnerable people make informed choices about their movements. The prototype service covers Central London and Croydon in South London, which is one of the city's largest boroughs by area and the largest by population, with 330 000 inhabitants.