Characteristics of indoor radon and its progeny in a Japanese dwelling while using air appliances.
Characteristics of radon and its progeny were investigated in different air conditions by turning four types of indoor air appliances on and off in a two-story concrete Japanese dwelling. The four appliances were air conditioner, air cleaner, gas heater and cooker hood. The measurements were done using two devices: (1) a Si-based semiconductor detector for continuous measurement of indoor radon concentration and (2) a ZnS(Ag) scintillation counting system for equilibrium-equivalent radon concentration. Throughout the entire experiment, the cooker hood was the most effective in decreasing indoor radon concentration over a long period of time and the less effective was the air conditioner, while the air cleaner and gas heater did not affect the concentration of radon. However, the results measured in each air condition will differ according to the lifestyles and activities of the inhabitants. In this study, indoor radon and its progeny in a Japanese dwelling will be characterised by the different air conditions.
Department of Radiological Life Sciences, Hirosaki University, Aomori, Japan.
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Pornnumpa
Institute of Radiation Emergency Medicine, Hirosaki University, Aomori, Japan tokonami@hirosaki-u.ac.jp.
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Tokonami
Fukushima Medical University, Fukushima, Japan.
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Sorimachi
Chulalongkorn University, Bangkok, Thailand.
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Kranrod
D000389:Air Conditioning / Q000295:instrumentation* / Q000379:methods; D000392:Air Movements; D000396:Air Pollutants, Radioactive / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D003296:Cooking / Q000295:instrumentation* / Q000379:methods; D006361:Heating / Q000295:instrumentation / Q000379:methods; D006794:Household Articles / Q000295:instrumentation; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D011886:Radon / Q000032:analysis*; D017687:Radon Daughters / Q000032:analysis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
D000396:Air Pollutants, Radioactive; D017687:Radon Daughters; D011886:Radon