Abstract
Radon concentrations were measured in Kufa dwellings of the technical institute, Al-Najaf- Iraq using LR-115 type II plastic track detectors. Additionally, annual effective dose and the excess lifetime cancer risk for the aforementioned dwellings were calculated. The results demonstrate that the radon concentration ranged from 37.4±6.4 Bq/m3 to 55.7±12.0 Bq/m3 with an average of 46.2±8.2 Bq/m3. The latter is found to be closer to the acceptable radon levels (e.g., 200-300 Bq/m3) that recommended by ICRP (2010). The average value of the excess lifetime cancer risk were ranged from 8.09 million persons to 15.12 million persons with an average of 10.77±1.32 million persons. The obtained results are in good agreement with the published literature.
Highlights
Radon is a naturally existed element found as a noble gas in the environment in form of radioactive isotope
(46.2±8.2) Bq/m3, where the minimum and maximum values for indoor radon concentration were found in sample (T10) and sample (T19) which equal to (32.6±1.8) Bq/m3 and (64.8±17.7) Bq/m3respectively
The variable from one region to another due to different concentration of uranium in different regions, these results are within the radon levels (200-300) Bq/m3 which are recommended by ICRP (2010)
Summary
Radon is a naturally existed element found as a noble gas in the environment in form of radioactive isotope. In the early nineteenth, several studies on radon levels in homes and other buildings were carried out and the results of these have provided indirect evidence on that radon may be a critical cause of lung cancer in the general population. These, provided a convincing evidence of the increased lung cancer risk causally associated with radon, even at levels commonly found in buildings. Risk assessment for both radon in mines and in residential settings have provided clear insights into the health risk due to radon existence. The present work was aimed to measure the indoor radon concentration in the Kufa technical Institute building of Kufa city by using SSNTDs technique because there is no studying of radon concentration in this Institute.
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