AT HIGH BACKGROUND RADIATION AREAS THE RELATIONSHIP BETWEEN IN SITU INDOOR GAMMA DOSE RATES AND BUILDING MATERIALS: A CASE STUDY FROM ARIKLI VILLAGE (AYVACIK/CANAKKALE/TURKEY)

摘要

This study measured in situ indoor gamma dose rates in Arikh village situated near a uranium mineralisation region, evaluated the risks of radiological health hazards and established a hypothetical relationship between these values and building materials using statistical tools. Eberline brand portable type ESP-2 model Na (Ⅰ) scintillation probe connected detector was used for the measurements in 45 dwellings. Statistics revealed two groups. The first group consists of the dwellings made of bricks or mixed materials both plastered by cement, while the second group represented the dwellings made of Arikli tuff plastered with soil (modified Arikli tuff) or cement. For the first and second groups, respectively, the medians of the indoor gamma dose rates were 188.79 and 261.87 nGy/h; for indoor Annual Effective Dose Equivalents (AEDE_(in)) they were 0.93 and 1.28 mSv/h; and for Excess Lifetime Cancer Risks (ELCR_(in)) they were 3.69 and 5.12, respectively. All the values were higher than those of the world averages.