Near Toulouse, the city of L’Union will analyze the air using high-tech technology.

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The postponement of part of the traffic on the Toulouse ring road between Saint-Oran and Longuet since the inception of the ZFE worries the city of L’Union, which is preparing to install pollution sensors in the near future and is studying a high-tech camera system with the Toulouse-based company.

It is a promise made to the residents of the Union, one that the mayor stands firm on: the air they breathe will be scrutinized. This desire did not start yesterday, but accelerated at the beginning of the year with the introduction of ZFE (Low Emission Zones) by the metropolis, which decided to delay the most polluting vehicles on the ring road. The choice worries the city of L’Union, which fears “a subsequent influx of cars and trucks between Saint-Oran and Longaget”. Hence the idea of ​​precisely controlling their impact on the air. This will be done in two steps. The first phase will see the light of day during the last quarter: “It consists of the installation of static sensors. One will be installed near McDonald’s, next to the ring road, the second in the sector of Malpagat Park, in the city center,” explains Yannick Puget, the municipal council delegate in charge of social and technological innovations. In parallel, an elected official explains that a study is being carried out to “provide a suitcase that will be provided to the residents of the Union for the delivery of other tests done near their home. We then plan to publish this data on the city’s website and app. the case of another, even more effective one, on which elected officials rely. Unfortunately, today it cannot be financially supported by one municipality. “This is a magnetic spectrum camera that we want to install on the roof of the town hall. This is very high technology. This camera will repeat the other two already installed in Toulouse. Then the observed field will be extremely accurate,” says the elected official.

Knock on the doors of neighboring cities
The costs, which will amount to about 100,000 euros, have not convinced the unanimity of the Marc Pere team, which, as in any decision, prefers consensus to force. Thus, the project is again subject to discussion, again with the Toulouse-based company WaltR, which specializes in analysis using optical sensors. However, a path has already been explored to ease the upcoming workload. The city plans to knock on the doors of neighboring cities such as Balma, Longaget and Saint-Jean, also in the field of monitoring fine particles and other pollutants. At the same time, the Union reaffirms its desire to knock again on the Porte de la Métropole, which has already listened, repeating that it does not support “isolated points of view”, preferring to this day to continue “to refer to the Atmo Occitanie”. Marc Pere still believes that the health of his fellow citizens “is a question that requires concrete answers … and everyone’s participation.” Continued then.

The WaltR experience in Toulouse

The city of L’Union chose to partner with WaltR on a project to install optical sensors. This company, co-founded and led by Eric Peignon, is already experimenting with the Metropolis of Toulouse, which it could, why not, enrich with the Union project. WaltR actually installed a prototype camera at La Reynerie and, in addition, signed contracts with the city of Angers, the port of Nice and Charles de Gaulle Airport. The principle is to collect data in high resolution, in 3D and in real time. “Our multispectral thermal imagers are installed at various strategic locations in the area to be assessed. Characteristics of observed gases and particles can be determined remotely. This data is then entered into our software,” explained director WaltR La Dépéche during an interview. Eric Peigno also referred to the Metropolis pilot demolition and revegetation project in the north of Ramier Island, an operation carried out under the Europe-funded Living for Environment and Climate program. Thus, during the demolition of the former exhibition center, an entire area of ​​25 km2 was taken under control, the consequences of which have been carefully studied on live television since then.