according to metro operator RATP. Ile-de-France Mobilités (IDFM) and Airparif unveiled on Monday a map of air pollution in 44 Paris metro and RER stations. Three of them show "high levels" of ...

Still, Paris is very big, so you should take the efficient metro to travel long distances. The Régie Autonome des Transports Parisiens or RATP system, which runs the metro, also offers several ...