Radon and its Decay Products in the Main Campus of Qassim University, Saudi Arabia, and its Radiation Hazards
A.El-Taher1, M. El-Hagary1, M. Emam-Ismail1, F. A. El-Saied2and Fadl A. Elgendy2
1Physics department, College of Science, Qassim University, P. O. 6644, 5145 Buraydah, KSA
2Chemistry department, College of Science, Qassim University, P. O. 6644, 5145 Buraydah, KSA
Abstract: Rn-222 is the most important source of natural radiation and is responsible for approximately half of the received dose from all sources. Most of this dose is from inhalation of the Rn-222 progeny, especially in closed atmospheres. Portable devices, Alpha Guard and RAD 7 were used for Rn-222 measurements inside the main campus of Qassim University at Saudi Arabia in order to estimate the effective dose to the occupants from222Rn and its progeny. At the same time, meteorological variables, such as temperature and humidity were observed. The values of annual effective doses for radon inhalation by the inhabitants were found to vary in the range 0.2–0.6mSv/ y, with a mean of 0.38mSv /y1. These results are lower than the value 1 mSv/y recommended by ICRP, 1990. The variation of dose relationship from indoor radon in lung tissue are calculated and tabulated. The investigation shows that the levels of indoor radon are well within acceptable values in main campus of Qassim University at Saudi Arabia. The Quality level parameters of the water used in the campus are measured and compared with the recommended levels of World Health Organization, WHO. In addition to environmental value of the present survey, the results are considered to be essential in analyzing any data for future activities in this field.
[A.El-Taher, M. El-Hagary, M. Emam-Ismail, F. A. El-Saied and Fadl A. Elgendy. Radon and its Decay Products in the Main Campus of Qassim University, Saudi Arabia, and its Radiation Hazards. J Am Sci 2013;9(6):257-266]. (ISSN: 1545-1003). http://www.jofamericanscience.org. 30
Key words: Rn-222- Qassim university- workplaces monitoring- Annual effective dose