A survey of radon concentrations in both indoor and outdoor atmospheres was carried out using EIRM and Cup Monitor for the period of February 1996 to March 1997. EIRM were used to measure the indoor and outdoor mdon conat five major cities university. Cup Monitor were also used to measure the indoor radon concentrations at shopping store, office building, apartment. hospital and house in Seoul. The mean indoor and outdoor radon conat the five major cities(Seoul, Daegu, Daejon, Gwangju and Busan) were 24.1 Bq/m³ and 8.62 Bq/m³ respectively. The ratio of indoor to outdoor radon concentrations ranged from 1.7 to 3.9. Inspection of its seasonal distribute pattern indicates the enhancement during winter relative to summer. consistently for both indoor and outdoor air. The results of the survey showed that the concentrations in basement~ were clearly higher than those in usual living! working places.
ABSTRACT
Ⅰ.서론
Ⅱ.연구방법
Ⅲ.결과 및 고찰
Ⅳ.결론
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