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KMID : 0357520170400010127
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Journal of Radiological Science and Technology
2017 Volume.40 No. 1 p.127 ~ p.134
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Assesment of Indoor Radon Gas Concentration Change of College
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Park Hoon-Hee
Jeong Eui-Hwan
Kim Hak-Jae
Lee Ju-Young
Lyu Kwang-Yeul
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Abstract
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The purpose of this study was to assess the impact by comparing the concentration of indoor radon and look for ways to lower the concentration of indoor radon gas measurements of three variables, the year of completion, volume of the building and ventilation. Measurement target is six classrooms on the sixth floor of building that was constructed in 1973 and was extended in 2011. Selected classroom's volume is different. Four classrooms were selected to compare the radon concentration in accordance with the year of completion, Classrooms that is same year of completion were selected to compare the radon concentration in accordance with the volume, six classroom was performed closure and ventilation to compare radon concentration according to ventilation. Radon concentrations in accordance with the year of building completion showed a high concentration of radon in a building recently built. Also, Radon concentration in volume is high the smaller the volume. Radon concentration change according to ventilation showed a reduction of about 80% when the ventilation than during closing. Especially, The radon concentrations were high detected while the recently year of building completion and the smaller volume. Ventilation of the three variables is considered that can be expected to exposure reduction effect by radon affecting the greatest radon concentration reduction.
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KEYWORD
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Radon , Building completion , Volume of the building , Ventilation
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