Aug 3, 2022

Senzorvzduchu, z.s.

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First NameMichael

Last NameLazan

What is the name of your organization?Senzorvzduchu, z.s.

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

Where are you based?Manesova 1723/70, Prague, Prague 12000,

Name of the equipment
SDS011 laser sensor
Sensor Community KIT
The number of these devices used in your initiative (estimation):
  • DIY product – we bought parts
  • DIY – from a dedicated provider


Measured parameter (you can select several)
  • PM2.5
  • PM10


Communication type
  • Wifi


Energy type
  • USB


Does your device allow SD cards?
  • No


Temporal resolution
Temporal resolution – Other
150 seconds
Where are you measuring air quality?
Device’s location
  • Street – public domain


Level of expertise required to operate
Simple if you take the time to read the documentation
What is the approximate market price per unit?
Are there any other costs related to this equipment?
Are there any setup/installation costs? If possible, provide a figure
Are there any maintenance costs? If possible, provide a figure

What is the name of your initiative?Senzorvzduchu, z.s.

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

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.Senzorvzduchu, z.s. is an association operating in the Czech Republic with the aim of spreading awareness of the possibility of citizen measurement of air quality through self-built sensors. Senzorvzduchu, z.s. works closely with Sensor.Community and uses its open network. is a global sensor network founded in 2016 with currently 14,148 sensors in 71 countries. Together, we have taken 11,229,115,118 measurements.
The sensors measure PM10 and PM2.5 particles, temperature, atmospheric pressure, humidity and some even noise in real time. Information about the air condition is displayed on a map. The data is stored and freely accessible for an unlimited period of time in an archive. Bidirectional connection to APIs, graphing and application creation, setting up alerts for deteriorating air conditions and, in community projects, history visualization is possible. Collaboration of the whole community is done on Github.

Who is your main audience?Citizens, Schools, Non- Governmental Organisations

If possible, provide the list of partners involved in the initiative.Smichov High school, Sazavska elementary school, Gymnasium pameti národa high school – all in Prague

How is this initiative funded?Private programme

Please provide an estimation of the total budget of the initiative (in €):Less than 5 000€

What is the duration of the initiative?1 to 5 years

How many participants (citizen scientists, volunteers, etc.) have been involved (approximately)?25 – 100

Website that presents your initiative

Please upload a picture to illustrate your initiative

Are you using a platform for data visualisation?Yes, we connect to an information data viewer provided by a third party (GIS, digital twin, …)

Add the public URL (if any)

Is your platform open source?Yes

Are there any other interesting links related to the data platform?

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

What are the estimated costs related to the data platform (subscription if any, development costs…)no costs, donation operated

Are you providing open data?Yes

How is the data made accessible?Export (csv, geojson..), API

If any, what qualitative or quantitative indicators (e.g., AQI, alerts…) are you calculating?AQI, limits PM10 – 50 µg/m3, PM2,5 – 20 µg/m3

How frequently is the data refreshed in the data platform?150 seconds

How long does it take before the newest data is available on your platform?instant

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)For information on the state of the air, it is desirable to have as dense a network of sensors as possible. The network Sensor.Community, citizens themselves can contribute with their measurements and thus to inform us all. With an investment of around 50EURO they can build their own sensor at home. Almost anyone can build one, the software is already
ready. If something doesn’t work, we will be happy to advise you on our forum.

– we proposed the Sensor2School initiative to Prague city officials, but hesitated to support the proposal because of their past experience. We are learning how to communicate the importance of this matter to them, showing that is something they should want and need to involve citizen initiatives in the air quality measurements.

– on the other hand we have very positive feedback from schools involved, as they acknowledge the importance of highly localized data and its use in schools as there is a change in the digital curriculum involving all schools and subject starting from 1.9.2023

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