RADON CONCENTRATIONS IN DWELLING OF SOUTH KALIMANTAN, INDONESIA

Determination of radon concentrations in dwelling in South of Kalimantan Province by using a passive method had been
conducted. South Kalimantan is a province in Indonesia and also known as a coal mining area which has the potential for internal exposure of Naturally Occurring Radioactive Materials (NORM) to the human. The research area divided into several sections called grid. Each grid represents a 60 km × 60 km area that installed passive radon monitoring 10 population. Passive radon monitors installed in the dwelling with exposures time approximately 3–4 months and then radon monitors were collected and brought to the laboratory for processing and then read the track to calculate the radon
concentrations. The data concentrations of radon in the dwelling and GPS location as an input to the make a map of radon concentration by using MapInfo Software v.10.5. The results of the analysis of the concentration of radon in the dwelling of South Kalimantan in the ranged 3.1 ± 0.2 Bq m−3 up to 94.0 ± 6.7 Bq m−3. The result was lower than the reference level radon set by UNSCEAR was 300 Bq m−3. These data are useful in the development plans and regional development, as well as the basis for health policy analysis due to radon in Indonesia. Furthermore, these data will be the contribution of Indonesia in the international world through UNSCEAR, IAEA and WHO. The data obtained as an input in making a map of the concentration of radon in houses of Kalimantan Selatan as part of the map of the concentration of radon in Indonesia.