Radon concentration measurements are currently the focus of activity of LIP’s Radiation, Health and environment group. This radioactive gas, abundant in granitic areas, is recognized as a carcinogenic agent, and is appointed by the World Health Organization as the second leading cause of lung cancer after tobacco smoke. Knowing its concentrations inside houses is thus important from the point of view of radiological protection. In addition, Radon is the largest contributor for underground water radioactive pollution. Recent work of the group includes the development and test of low cost radon monitors, and field measurements in different locations in Portugal and in the municipality of Bibala, in Angola.

Several international organizations involved in radiation protection and public health, have produced new guidance, recommendations and requirements aiming better protection from radon exposure. With the new legislation, DL 108/2018 (Transposition of Basic Safety Standards Council Directive 2013/59/EURATOM to national legislation) protection against indoor exposures to radon in both workplace and dwellings is clearly regulated and exposures to radon in dwellings are regulated for the first time. LIP researchers are part of the LabExpoRad at Covilhã, which can provide radon measurement services for the community. For this, the certification of our laboratory services is in preparation.