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A Preliminary Investigation of Radon Concentration for Some Agricultural Greenhouses in Jeju Island
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 Title & Authors
A Preliminary Investigation of Radon Concentration for Some Agricultural Greenhouses in Jeju Island
Kang, Tae-Woo; Song, Myeong-Han; Kim, Tae-Hyoung; Chang, Byung-Uck; Kim, Young-Jae; Kim, Geun-Ho; Park, Jae-Woo;
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BACKGROUND: A preliminary investigation of the radon () concentration has been conducted, employing solid-state nuclear-track detectors (SSNTD) and a continuous radon monitor (CRM), for fourteen randomly selected agricultural greenhouses in Jeju Island, where the underground-air was used for air conditioning and supplement. METHODS AND RESULTS: The SSNTD was used to measure the average radon concentration for three months and the CRM was used for an instantaneous measurement. In order to obtain the radon concentration of a greenhouse, the SSNTDs were placed at a number of evenly distributed points inside the greenhouse and the mean of the measured values was taken. In addition, in order to assess the radon concentration of the underground-air itself, measurement was also made at the borehole of the underground-air in each agricultural facility, employing both the SSNTD and CRM. It is found that the radon concentration of the greenhouses ranges higher than those not using the underground-air and the average of Korean dwellings. While the radon concentration of most agricultural facilities is still lower than the reference level (1,000 Bq/) recommended by the International Radiation Protection Committee (ICRP), three facilities at one site show higher concentrations than the reference level. The three-month-averaged radon concentration and the instantaneous radon concentration of the underground-air itself ranges 1,228- 5,259 and 3,322-17,900 Bq/, respectively, and regional variation is more significant. CONCLUSION: From this results, radon concentration of the underground-air is assumed that it is associated with the geological characteristics and the boring depth of the region located of their.
Agricultural facility;Greenhouse;Radon;;Underground-air;
 Cited by
광주광역시 광산구 소재 초등학교 라돈가스 농도 계측,안병주;오지훈;

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