超高層住宅における屋内外ラドン濃度変化と風速, 風向との関係

抄録

²²²Rn concentrations were simultaneously measured at a beranda (outdoor) and a room (indoor) of a tall apartment for a week. Average ²²²Rn concentrations at the outdoor and indoor were 3.25 Bq/m³ and 19.8 Bq/m³, respectively. Correlation analysis showed significant negative relation between outdoor ²²²Rn concentration and wind velocity as well as wind directions from south and west. There observed a significant positive relation between indoor and outdoor ²²²Rn concentration as well as a negative relation between indoor ²²²Rn concentration and wind direction from west.