Context
The 2013/59/Euratom Directive published on September 5, 2013, set the maximum threshold of 300 Bq/m3 for Radon gas concentration. Consequently, all European countries now have an obligation to precisely map their risk areas. For high concentration areas, special mitigation measures have thus to be implemented to limit public health risk in case of inhalation or ingestion of Radon gas, which has been recognized as a risk factor for lung cancer by the International Agency for Research on Cancer (IARC) of the World Health Organization (WHO) in 1987. In Europe it is the main source of exposure to ionizing radiation and the second risk factor for lung cancer, after cigarette smoking. All European countries, including Austria, are affected by this invisible risk that must be accurately measured to protect the population.
