RATP is committed to improving the quality of air in its underground spaces

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It is now possible to consult in real time the air quality data of three stations on the RATP website: Châtelet, Franklin Roosevelt and Auber. The parameters studied are the following: climatic parameters (temperature, relative humidity), carbon dioxide, nitrogen oxides, fine particles ... Concerning the particulate pollution resulting from rolling stock braking systems, the RATP has set up a series of actions to reduce the presence of micro particles in the air.

Source : La RATP engagée pour la qualité de l’air dans ses espaces souterrains