The first 60 citizens of Grenoble-Alpes Metropolis, Lyon Metropolis and Clermont Auvergne Metropolis have been exploring the levels of fine particles in their environments since September 28th, thanks to micro-sensors for measuring air quality, lent free of charge as part of the Captotheque service.


Free loans of micro-sensors of measurement

Since September 28th, 60 mobile micro-sensors, selected and tested by Atmo Auvergne-Rhône-Alpes, have been made available free of charge to citizens to freely measure, during 15 days, the air quality of the partner territories. In the coming months, more than 600 citizens will be able to experiment the levels of particles in their environments.



In just a few days, more than 600 measurement sessions have already been carried out by the first experimenters on everyday journeys, in their homes, in different municipalities in the territories.


The measurement data shared by the experimenters can be viewed in real time on the platform and can be commented by all. Simply create an account on the platform.

A better understanding of atmospheric phenomena

In addition to free measurement, support is offered to invite citizens to measure characteristic pollution phenomena, via missions or measurement challenges.


By participating in missions, the experimenters contribute to improving knowledge on polluting phenomena.

Transport, housing, urban planning or air quality at work, these measurement missions, pursuing the same objective but carried out by the experimenters in different contexts, will enable the construction of knowledge on polluting practices and high exposure contexts.


Citizen data to fuel exchanges

Exchange and sharing functionalities as well as physical workshops complete the system and will promote dialogue between the actors of the territory, the experts of Atmo Auvergne-Rhône-Alpes and the users.


A total of 30 exchange workshops will be offered to citizens experimenting in the 3 partner territories.  

3 partner territories
In 2020, the service will be rolled out to three partner cities: Grenoble-Alpes Metropolis, Lyon Metropolis and Clermont Auvergne Metropolis. It aims to be extended by 2022 to the 9 priority air territories of the Auvergne-Rhône-Alpes region.

A citizen and multi-partner project

This multi-partner project prefigures a new way of looking at air quality monitoring in a territory. The Captotheque is indeed the first step to concretize the ambition of Atmo Auvergne-Rhône-Alpes in terms of monitoring: to integrate all the actors of the society in the observation of the air quality, via the deployment of citizen measurement observatories.

To carry out this project, Atmo Auvergne-Rhône-Alpes was able to count on the financial support of the Auvergne-Rhône-Alpes region, the metropolises of Lyon, Grenoble and Clermont-Ferrand as well as four private sponsors through the ConvAirgence endowment fund: the BONTAZ Group, Autoroutes et Tunnel du Mont Blanc (ATMB), Gaz et Electricité de Grenoble (GEG) and the Terre d'Initiatives Solidaires SUEZ Foundation.