Sep 22, 2022


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First NamePierre

Last NameDornier

What is the name of your organization?Les chercheurs d’air


What best describes the type of organisation that you are representing?Non-Governmental Organisation

Where are you based?Rue Edouard Faes 92, Jette, 1090, BE

Name of the equipment
NO2 diffusion tubes
Passam AG
The number of these devices used in your initiative (estimation):
  • Commercial product


Measured parameter (you can select several)
  • NO2


NO2 – Unit
NO2 – Technology
Diffusion tubes
Are there any other technical details you would like to share?
We measured average per month
Communication type
  • Not relevant


Energy type
  • Not relevant (passive tubes, for example)


Temporal resolution
Temporal resolution – Other
Monthly average
Where are you measuring air quality?
Device’s location
  • Street – public domain
  • Public building


Level of expertise required to operate
Simple if you take the time to read the documentation
What is the approximate market price per unit?
€20/tube (including analysis)
Are there any other costs related to this equipment?

What is the name of your initiative?#LesChercheursDair

How would you describe the main mission of your initiative?Measure/monitor air quality, Raise awareness/education, Advocate for air quality policies

Please provide a short description of your initiative (What is being done? Who is participating? What are your main goals?) This text will appear on the main page.What is the quality of the air we breathe in Brussels? In order to answer this question, we conducted a collaborative science campaign for 12 months, from October 2020 to October 2021, to measure nitrogen dioxide (NO2) concentrations throughout Brussels. This is the first time in Europe that such a project has been carried out over such a long period.

Who is your main audience?Citizens, Schools, Cities, Other government administrations

If possible, provide the list of partners involved in the initiative.19 Brussels municipalities
75 schools
55 citizens
Brussels region

How is this initiative funded?Municipality programme, Other

Context – OtherPrivate fundations

Please provide an estimation of the total budget of the initiative (in €):50 000€ to 100 000€

What is the duration of the initiative?1 year

How many participants (citizen scientists, volunteers, etc.) have been involved (approximately)?100 – 500

Website that presents your initiative

Please upload a picture to illustrate your initiative

Are you using a platform for data visualisation?Yes, we have created our own data platform

Add the public URL (if any)

Is your platform open source?No

From 0 (the lowest) to 5 (the highest), how easily accessible and user-friendly is your platform?4

What are the estimated costs related to the data platform (subscription if any, development costs…)€10,000

Are you providing open data?No

How is the data made accessible?The data is NOT made accessible

Do you give access to historical data?Yes

If possible, please share a link to your data privacy policy:

What type of data visualisation do you provide?Statistics / Indicators / Charts, Maps, Report

Would you like to share with us any additional information? (Max 300 words)If you want to work with schools, make sure the direction and at least one teacher are really interested in the project. Also make sure you have direct contact with all the participants (ideally mobile phone number, even for teachers).

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