Characterization of CR-39 detectors for monitoring indoor radon 222.

Radon gas (Rn-222) is a carcinogenic agent classified by the WHO as Group 1 and is the leading cause of lung cancer in non-smokers. Due to its natural origin in the Earth's crust, this gas is primarily transported by exhalation through cracks, with concentrations that vary depending on soil morphology and climatic seasons. This article studies the radiological impact of radon gas on health in homes in the city of Tunja, Boyacá. For this purpose, solid-state nuclear track detectors CR-39 (SSNTD) were used, exposed for an approximate period of 60 days. The results showed average concentrations of 218.11 Bq·m-3, a value that falls within the reference limits recommended by the ICRP. This study highlights the importance of establishing public policies in developing countries like Colombia, where specific regulations for radon measurement and control do not yet exist. The results obtained can be used to identify risk areas and serve as a basis for implementing prevention measures and protecting public health.