Analysis of Dose by Items According to Act on Safety Control of Radiation Around Living Environment

Abstract

The study attempted to analyze items presented in Act on safety control of radioactive rays around living environment, which has been recently enacted. The test items have been divided into cosmic rays, cosmic rays, terrestrial radiation, and byproduct, etc., and the selected locations for measurement included an airplane at 8000m in the air, mountainous area at 1000m above sea level, 15m-underground building, construction site, and seashore at 0m altitude.The test showed that, based on cosmic rays, plane at 8000m in the air had 4.91mSv/y of effective dose per year. The mountainous area at 1000m above sea level, which was chosen to measure cosmic rays and terrestrial radiation, was measured 0.35mSv higher than the seashore at 0m in altitude due to the effect of cosmic rays and terrestrial radiation from the greater height above sea level. The construction site, chosen as a location to measure byproduct, showed the highest value among the items with 6.66mSv, which is as 10times high as that of a completed building. The seashore at 0m in altitude had 5.96mSv, and, 15m-underground building, based on terrestrial radiation, was the lowest with 4.91mSv. This suggests that, despite the assumption that terrestrial radiation will have greater effect deeper underground, it did not affect inside the building significantly.This study showed that the items presented in Act on safety control of radioactive rays around living environment were not close to effective dose limit for radiation workers proposed by ICRP. However, they were between 4 and 7 times higher than that for general public. This suggests that there should be continuous research on and attention to Safe Management of Daily Surrounding Radiation Act, which is still at its beginning stage.Key Words: Act on safety control of radioactive rays around living environment. cosmic rays, terrestrial radiation, byproduct 요 약 최근 시행된 생활주변방사선안전관리법에 제시된 항목들을 분석하고자 하였다. 실험 항목을 우주방사선, 지각방사 http://dx.

Effects of Wearing Bio-active Material Coated Fabric against γ-irradiation-induced Cellular Damage in Sprague-Dawley Rats

“…Since the March 2011 radiation accident at the Fukushima Daiichi nuclear power station (FDNPS) in Japan, which released a large amount of artificial radionuclides including 131 I, 137 Cs, and 134 Cs [2], people are increasingly concerned about radiation causing genetic defects and, accordingly, interested in radiation protection for individual members of the public. In Korea, with increasing anxiety about radiation exposure, the 'Act on Safety Control of Radioactive Rays around JRPR Living Environment' has been enforced to prevent unnecessary radiation exposure in daily life [3].…”