DETERMINATION OF RADON CONCENTRATIONS IN DWELLING IN ACEH

Determination of radon concentrations in dwelling in Aceh region by using a passive method has been conducted. In this research, area considered was divided into several sections called grid. Each grid represents an area of 60 km x 60 km in which, depend on public response, 6-10 passive radon monitors were installed. The number of passive radon monitors installed in Aceh is 200 units, and they can be taken back as many as 191 units or 95.50 %. The passive radon monitors have stayed in dwelling for 3-4 months and after period of the exposure, those radon monitors were taken back and brought to laboratory for further process, and then the track were read and the radon concentrations were calculated. Furthermore, data of radon concentration in dwelling and GPS location were put into MapInfo Software v.10.5 to create a map of radon
concentration. The results of the analysis of the radon concentration in dwelling in Aceh demonstrate that the
concentrations are in the range of 3.32 ± 0.23 Bq/m3 up to 68.30 ± 4.83 Bq/m3. This result was lower than the
radon reference level determined by UNSCEAR, which was 300 Bq/m3. The data are useful in the regional
extension and development plans, as well as the basis for health policy analysis due to the existence of radon
in Indonesia. Furthermore, these data will become the contribution of Indonesia in the international world
through UNSCEAR, IAEA and WHO. The data obtained can be used as partial data in creating a map of
radon concentration in residents’ houses in Aceh, as a part of the map of radon concentration in Indonesia.