RADON in a high karst area of Montenegro - A case study.

The national radon surveys in Montenegro revealed that the highest annual average radon concentrations (C) in ground floors of dwellings and schools were found in a rural region characterized as a typical high-karst area. In this region, spanning approximately 800 km, C values in 9 houses and 16 schools ranged from 219 to 2494 Bq/m, with AM = 977 Bq/m. To investigate the causes of these elevated indoor radon concentrations, the following parameters were measured near the 25 surveyed buildings: soil humidity, electrical conductivity, pH, activity concentrations of Ra, U, U, Th and K, radon concentration in soil gas (c), soil permeability for radon gas (k), and gamma dose rate in the air.

MAIN FINDINGS FROM RADON INDOOR SURVEY IN MONTENEGRO.

Recent residential radon survey in Montenegro revealed the national average annual radon activity concentrations: unweighted AM = 110 Bq m-3, GM = 58.3 Bq m-3, and population weighted (AM)w = 100.5 Bq m-3, (GM)w = 92.

Radon survey in Montenegro - A base to set national radon reference and "urgent action" level.

The first nationwide indoor radon survey in Montenegro started in 2002 and year-long radon measurements with CR-39 track-etch detectors, within the national grid of 5 km × 5 km and local grids in urban areas of 0.5 km × 0.5 km, were performed in homes in half of the country's territory.