F-70 札幌・名古屋における多元室内空気質の挙動の解析と健康影響評価に関する研究 : 第2報自然放射性物質を中心として

概要

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Radon short-lived decay products generated from the earth is one of the serious indoor air pollutants in Europe and US. We measured natural radioactive substance and main indoor air pollutants in the facilities of Sapporo and Nagoya City. In several facilities radon concentration was very high. We set up boxy measuring devices in the campus of Hokkaido University. By using the filter pack method we measured concentration of radon and its decay products inside of the boxy measuring device and the surrounding outdoor air. We also performed to measure ventilation rate of the device. By using the ventilation rate and concentration values radon exhalation rate was calculated. We found out that radon exhalation rate might be significantly related with atmosphere pressure To calculate the deposition rate to respiratory organ, we measured particle size distribution of radioactive aerosol. In the facilities in Sapporo and Nagoya City, its distribution was single-peaked pattern everywhere.
社団法人空気調和・衛生工学会の論文
2006-09-05