radon measures underground

Radon measurements

As in Europe, in Italy there are laws about protection of health for the detection and measurement of Radon that may be present in environments frequented by people.

The legislation introduced by D.Lgs. 241 of 2000 requires that, by February 28, 2004, all businesses must assess the presence of ionizing radiation from natural background in the workplace. The threshold for exposure to Radon in the workplace has been fixed in 500 Bequerel per cubic meter. The obligation of measurement must be completed within two years after entry into force of this decree for the activities already in operation, while for the activities not yet started, a preliminary assessment is needed. This means that buying or renting a space, it should be taken into account the possible presence of natural radioactivity, especially in the case of a basement or underground, or if located in an area “rich” of natural radiation. The operator that, by March 1, 2004, is not in accordance to the obligations under the D.Lgs. 241/00, shall be punished by imprisonment up to three months or a fine of from 2,582 to 10,329 Euros.

The reference limits of Radon in the workplace is:

  • 500 Bq/ m3 threshold value only in the workplace (D.L. 241/2000).

Exceeded this value is necessary to act for reclamation by the intervention of a qualified expert in radiation protection.


LABORAD srl is an organization suitably equipped to perform measurements of Radon gas, as provided by paragraph 4 of Article 10-ter of D. Lgs. 230/95 and subsequent amendments, as it participates in an international intercomparison of procedures that define the quality and reliability of the proposed service.
The intercomparison results attest to the excellent quality of our results.


 BfS Radon comparison Certificate.pdf




  • basements or underground workplaces involving exposure to Radon or Toron decay products (tunnels, caves, subways, catacombs, deposits, but also various offices, warehouses, schools, banks, museums, libraries, shopping centers, etc.);

  • workplaces other than those mentioned above, but located in areas at high risk of contamination by Radon (identified by Regions and Autonomous Provinces by August 31, 2005). From this date the operators of the areas above identified will have 24 months to carry out the surveys;

  • workplaces used for the use or storage of non radioactive materials containing natural radioactive elements. For example, companies that process zircon sands, rare earths, ceramics industries, production of refractory materials, etc…;

  • workplaces used for the production of non radioactive waste, but which contain natural radioactive elements;

  • workplaces associated with thermal or mining activities;
  • aircraft (flight personnel with particular reference to the traveling part).

Ask the expert for a free evaluation.




For further details it is possible to download texts of the main law references.


Laborad srl is not responsible for the contents and the legal advice provided directly or indirectly by this website. The information and excerpts from the laws published here come from public records and not necessarily the official bodies.

Laborad srl can not therefore guarantee the accuracy, correctness and completeness of the information published. The purpose of this archive is only to promote information and stimulate discussion on current topics related to environmental safety.
The information provided below should therefore not be seen as legal advice!


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