The MINOx-STREET LIFE project - 'MonItoring and modelling NOx removal efficiency of photocatalytic materials: A STRategy for urban air quality managEmEnT' - is a project that aims to provide rigorous evidence on the real capabilities of commercial photocatalytic materials in reducing urban NOx concentrations.

The project has a budget of 1,982,619 euros, of which 46.23% is funded by the European Union, and an approximate duration of five years (July 2013 to June 2018).  

Photocatalysis is a chemical reaction which enables the elimination of common pollutants in the atmosphere, such as sulphur and nitrogen oxides (SOx and NOx) and volatile organic compounds (VOCs), by means of an oxidation process activated by sunlight.

Although the scientific basis of photocatalysis has been understood for decades, it is only in recent years that several studies have advocated the application of titanium dioxide (TiO2) as a photocatalyst incorporated into different materials. In the presence of sunlight, the TiO2 catalyses the oxidation of certain compounds into other compounds, giving these materials self-cleaning properties and potentially reducing atmospheric pollution.