The purpose of this study was to verify the radon reduction effectiveness of some radon barrier paints using the laboratory test on radon exhalation rate. The radon exhalation characteristics and radon exhalation rate of three radon barrier paints for concrete and three radon barrier paints for stone finishes were evaluated before and after application. Then the radon reduction rate was calculated to confirm the reduction effects. The results showed that the radon reduction rate of radon barrier paint was less than 10%, which is not effective in reducing radon. These findings suggest that a reliable radon reduction evaluation method is needed to utilize radon barrier paints as an indoor radon control measures.

Abstract
1. 서 론
2. 연구 방법
    2.1 연구 대상
    2.2 라돈 방출률 측정
    2.3 라돈 저감효과 평가
3. 결 과
    3.1 대상 자재의 라돈 방출특성
    3.2 라돈 차단 도료 시공 후 라돈 방출특성
    3.3 라돈 차단 도료의 저감효과
4. 결 론
감사의 글
References

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• 유주희(국립환경과학원 환경기반연구부 생활환경연구과) | Juhee Yoo (Indoor Environment&Noise Research Division, Environmental Infrastructure Research Department, National Institute of Environmental Research)
• 김가현(국립환경과학원 환경기반연구부 생활환경연구과) | Gahyun Kim (Indoor Environment&Noise Research Division, Environmental Infrastructure Research Department, National Institute of Environmental Research)
• 심인근(국립환경과학원 환경기반연구부 생활환경연구과) | In-keun Shim (Indoor Environment&Noise Research Division, Environmental Infrastructure Research Department, National Institute of Environmental Research)
• 이정섭(국립환경과학원 환경기반연구부 생활환경연구과) | Jungsub Lee (Indoor Environment&Noise Research Division, Environmental Infrastructure Research Department, National Institute of Environmental Research) Corresponding author
• 이종천(국립환경과학원 환경기반연구부) | Jongchun Lee (Environmental Infrastructure Research Department, National Institute of Environmental Research)