Project stages



Bucureşti, RO

Project Details

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According to the World Health Organization report (WHO Handbook on indoor Radon – a Public Health Perspectives, 2009), the accumulated Radon inside the buildings is the main cause of lung cancer in non-smokers and the second cause for smokers.

Radon gas is emitted from the soil with a tendency to concentrate in closed spaces such as caves, mines, cellars, but also in any basement, ground floor or poor ventilation.

The risk of lung cancer increases with prolonged exposures to accumulated radon inside.

Thus, for the identification of long-term risks resulting from radon exposures, it is necessary to identify those places where the concentration of radon exceeds the reference level established by law, namely on average de300 Bq/m3 annually.

The smart solution from RadonAir tested in the pilot project Alba Iulia Smart City consists in continuous monitoring of the activity of radon concentration in public access buildings with high occupancy (e.g. schools, kindergartens, city hall, etc.) By:

  • Installation of active detectors;
  • Automatic alarm in case of exceeding the reference level through a data acquisition system connected to the installed detectors;
  • Interpretation of the data collected.

The measurement with active radon detectors registering the hourly radon level provides a graph of the variation in the concentration of the radon activity in the air, on the basis of which the intervals in which some measures are required, such as the ventilation Additional room. If the measured radon level exceeds the average annual reference level of 300 Bq/m3, remediation actions must be taken.

The data read by the detectors are transmitted to the RadonAir APP owner solution through a wireless connection of the type LoRa. They are processed at the RadonAir App level, with the results being provided in an easily interpreted manner to beneficiaries through the application dashboard. Here you can see updated every minute about the level of radon concentration in the monitored buildings and about the evolution of radon activity in time from one building to another.

The Intelligent RadonAir solution is addressed to people who operate in public access buildings, but also to all those who spend a long time in these buildings, such as school, preschool, teaching staff, auxiliary personnel Etc.

The RadonAir solution was installed in 3 public buildings in the municipality of Alba Iulia, being in the monitoring stage.


Technical specifications

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The RadonAir solution consists of installing in each monitored building a number of 3-7 active detectors measuring the concentration of radon in the air every hour. The data read by the detectors are transmitted to the RadonAir APP owner solution through a wireless LoRa connection.

The RadonAir App ecosystem consists of intelligent sensors, a variety of devices in the IoT area for data collection and the possibility of aggregation and presentation of a large volume of data (big date).

The solution is designed on a modular approach through the efficient use of existing technologies:

  • RaspberryPi Zero W, for interface with a wide range of sensors;
  • PyCom WiPy/PyCom Madhavi and PyCom Rini for communications using Wireless LoRa due to low electricity consumption (3-6 months autonomy).

The advantages of the PyCom solution are the possibility to work autonomously (a battery provides 6 months – 1 year autonomy) and the capability to work independently of existing WiFi networks, using high-range technologies such as LoRa.

Implementations do not require any electronic assembly for the communication part, the IoT devices used, integrate all necessary components.

Software technology used:

  • Python (IoT solutions);
  • NodeJS + MongoDB (backend);
  • ElasticSearch (fast searching);
  • Logstash + Kibana (rapid prototyping / rapid data visualisation);
  • Angular (custom dashboard / app RadonAir frontend).

RadonAir – Radon Monitoring Solution in the media

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General Benefits

The measurement of the radon concentration inside the buildings is provided for in Law No. 63/2018 amending Law No. 111/1996 on the conduct of nuclear activities and transposing the European Directive 20136/59/EURATOM, which provides for the need to protect against exposure to radon in buildings by identifying places/situations where the concentration exceeds the reference level of 300 Bq/m3 average annual.

The continuous monitoring solution of radon inside buildings (daily, weekly, monthly, yearly) from RadonAir offers to the authorities, employers, but also to all those who are interested in good air quality in the spaces in which they live and work, the ability to efficiently and real-time manage radon levels to minimise potential harmful effects on health.

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As of August 2018, there are permanently monitored 3 public buildings in the municipality of Alba Iulia, having different locations, which will allow an appreciation of the area level of radon.