References

Al-Aamer, A.S., 2008. Assessment of human exposures to natural sources of radiation in soil of Riyadh, Saudi Arabia. Turk. J. Eng. Environ. Sci., 32: 229-234.
Direct Link  |  

Anonymous, 1979. Exposure to radiation from the natural radioactivity in building materials: Report. OECD, Paris, France.

Damaris, O.A., 2014. Radiation level measurement in Delta State University. Afric J. Sci. Issues Res. Essays, 2: 479-490.

Diab, H.M., S.A. Nouh, A. Hamdy and S.A. El-Fiki, 2008. Evaluation of natural radioactivity in a cultivated area around a fertilizer factory. J. Nucl. Radiat. Phys., 3: 53-62.
Direct Link  |  

EC., 1999. Radiological protection principles concerning the natural radioactivity of building materials. Radiation Protection Report RP-112, European Commission, Luxembourg.

El-Taher, A. and S. Makhluf, 2010. Natural radioactivity levels in phosphate fertilize r and its environmental implications in Assuit governorate, Upper Egypt. Indian J. Pure Applied Phys., 48: 697-702.
Direct Link  |  

Harb, S., A. Abbady, A.H. El-Kamel, E.M. Abd and W. Rashed, 2008. Concentration of U-238, U-235, Ra-226, Th-232 and K-40 for some granite samples in eastern desert of Egypt. Proceedings of the 3rd International Conference on Environmental Physics, February 19-23, 2008, International Atomic Energy Agency (IAEA), Vienna, Austria, pp: 109-117.

Hussain, H.H., R.O. Hussain, R.M. Yousef and Q. Shamkhi, 2010. Natural radioactivity of some local building materials in the middle Euphrates of Iraq. J. Radioanal. Nucl. Chem., 284: 43-47.
Direct Link  |  

Jassim, A.Z., H.H. Al-Gazaly and A.A. Abojassim, 2016. Natural radioactivity levels in soil samples for some locations of Missan government, Iraq. J. Environ. Sci. Pollut. Res., 2: 39-41.
Direct Link  |  

Kathren, R.L., 1998. NORM sources and their origins. Appl. Radiat. Isot., 49: 149-168.
PubMed  |  Direct Link  |  

Lee, E.M., G. Menezes and E.C. Finch, 2004. Natural radioactivity in building materials in the Republic of Ireland. Health Phys., 86: 378-383.
PubMed  |  Direct Link  |  

Mahur, A.K., R. Kumar, M. Mishra, S.A. Ali and R.G. Sonkawade et al., 2010. Study of radon exhalation rate and natural radioactivity in soil samples collected from East Singhbhum Shear Zone in Jaduguda U-Mines Area, Jharkhand, India and its radiological implications. Indian J. Pure Appl. Phys., 48: 486-492.
Direct Link  |  

Muayed, S., 2015. Spatial analysis of residential waste solid in the city of Karbala (A Study in Environment Geography). Master Thesis, College of Education for Humanities Geography, University of Karbala, Iraq.

Namibi, K.S.V., V.N. Bapat, M. David, V.K. Sundram and C.M. Sunta et al., 1986. Internal report: Health physics division. Bhabha Atomic Research Centre, Mumbai, India.

Podgorsak, E.B., 2005. Basic Radiation Physics. In: Radiation Oncology Physics: A Handbook for Teachers and Students, Podgorsak, E.B. (Ed.). IAEA, Vienna, Austria, pp: 1-7.

Quindos, L.S., P.L. Fernandez, J. Soto, C. Rodenas and J. Gomez, 1994. Natural radioactivity in Spanish soils. Health Phys., 66: 194-200.
CrossRef  |  Direct Link  |  

Singh, J., H. Singh, S. Singh, B.S. Bajwa and R.G. Sonkawade, 2009. Comparative study of natural radioactivity levels in soil samples from the Upper Siwaliks and Punjab, India using gamma-ray spectrometry. J. Environ. Radioact., 100: 94-98.
CrossRef  |  

UNNSCEAR., 2000. Sources and effects and risks of ionizing radiation. Report to the General Assembly, with Scientific Annexes, United Nations Scientific Committee on the Effects of Atomic Radiation (UNNSCEAR), New York, USA.

UNSCEAR, 2000. Sources and Effects of Ionizing Radiation Annex B: Exposures from National Radiation Sources. Vol. 1, United Nations Publication, New York, ISBN: 9789211422382, Pages: 654.