2023-10-13 16:20:47
Specific measurement campaigns had already been carried out, but never on the scale of the entire network. MIGUEL MEDINA / AFP
A major air quality measurement campaign – carried out on all RATP trains – will begin on October 23. The results will be communicated to the public. A guarantee of “transparency”, according to Jean Castex.
It was time. A major air quality measurement campaign will be launched on Monday October 23 on all RATP metro and RER lines, in order to establish a precise map of particle levels in the trains. The best way “to have a good thermometer of what exactly is happening on the network“, underlined Jean Castex, CEO of RATP, this Thursday during the presentation of this unique campaign which plans to measure PM2.5 and PM10 particles via filter samples and a portable analyzer, as well as the CO2.
Because although one-off measurement campaigns had already been carried out in recent years in certain RATP stations, none had been deployed across the entire network. However, it is a request from the Ministry of Ecological Transition dated 2016, which then commissioned the National Institute of Industrial Environment and Risks (INERIS) to establish a guide of recommendations for measurement in enclosures. underground railways. The result is a protocol “extremely rigorous in accordance with the guide developed by INERIS and referring», underlines the RATP.
Read alsoAlert on air quality in the Paris metro
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A campaign carried out for two months
This campaign will therefore “obey strict rules», specifies the former prime minister, who thus brushes aside those “who come to our network with non-certified measuring devices» and who do not carry out their measurements «in the rules of art». «Difficult afterwards” according to him “to learn from it“. From Monday October 23, two to three technicians – RATP employees and equipped with a state-of-the-art case – will be sent from Monday to Friday for two months in the field to carry out measurements during peak hours, between 7:30 a.m. and 9:30 a.m. or between 5:30 p.m. to 7:30 p.m., several times per line if different trains are running there. That is 72 journeys, which represent 144 hours of measurements. All the data collected will then be sent to INERIS to be used and studied as well as to Île-de-France Mobilités (IDFM).
The case allows you to measure PM2.5 and PM10 particles, as well as CO2. Le Figaro
«We need reliable measurements», launched Valérie Pécresse, who welcomed the establishment of this “certified protocol“. The president of the region and of IDFM also pleaded for the RATP to play the game of “absolute transparency”, and that the results of these measures are “accessible to all users». «Our goal is that by 2024, users will have a real map» air quality «in train stations and stations» et «can know every day the level of pollution in their station and their train“. Measurements which will be added to those already measured in five stations – Franklin D. Roosevelt, Châtelet, Châtelet RER A, Auber and Nation RER A – available on RATP open data.
The results should ultimately enable the RATP “toto take better action at the source against air pollution in underground networks», underlines Jean Castex, who affirms that “heavy investments» have already been carried out. In order to equip the network with fans, but also to finance “more innovative techniques» such as smoke extractors or new pads placed on the RER A tires, supposed to reduce the emissions of the trains when braking. So many technologies “that we will gradually deploy which will make it possible to limit the emission of these particles», adds the former prime minister, who assures “act on all registers“. Before recalling that public transport remains “the safest means of transport» in relation to pollutant emissions.
For several years, the level of pollution in the underground networks – metro and RER – as well as the group’s communication have often been highlighted by associations such as Respire. Last spring, the Paris prosecutor’s office even opened an investigation to “endangering others» targeting the RATP suspected by the Respire association of hiding abnormally high rates from its users. A few weeks later, a study carried out for the show “Vert de rage” showed a precise map but contested by the RATP of pollution in the underground network.
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