Radiation Protection Dosimetry Advance Access originally published online on January 18, 2005
Radiation Protection Dosimetry 2005 113(2):173-177; doi:10.1093/rpd/nch449
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Radon concentration measurements in bituminous coal mines
ne1,*
1 Department of Mining Engineering, Istanbul Technical University, 34396, Maslak, Istanbul, Turkey
2 Çekmece Nuclear Research and Training Center, 34149, Küçük Çekmece, Istanbul, Turkey
* Corresponding author: fisnea{at}itu.edu.tr
Received May 18, 2004, amended September 28, 2004, accepted December 11, 2004
Radon measurements were carried out in Kozlu, Karadon and Üzülmez underground coal mines of Zonguldak bituminous coal basin in Turkey. Passive-time integrating method, which is the most widely used technique for the measurement of radon concentration in air, was applied by using nuclear etched track detectors (CR-39) in the study area. The radon concentration measurements were performed on a total of 42 points in those three mines. The annual exposure, the annual effective dose and lifetime fatality risk, which are the important parameters for the health of workers, were estimated based on chronic occupational exposure to the radon gas, which is calculated using UNCEAR-2000 and ICRP-65 models. The radon concentrations at several coal production faces are higher than the action level of 1000 Bq m3. It is suggested that the ventilation rates should be rearranged to reduce the radon concentration.
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