Measurement of natural radioactivity in the sediments of the beaches of the north east coast of Libya

Ahmed S. A.  Elmzainy; Salah Saleh Basil; salha D. Y.  Alsaadi; Areej Hazawi

doi:10.36602/jsba.2022.14.38

Authors

Ahmed S. A. Elmzainy Physics Department, Faculty of Science, Omar Al-Mukhtar University, El-Beida, Libya
Salah Saleh Basil Physics Department, Faculty of Science, Omar Al-Mukhtar University, El-Beida, Libya
salha D. Y. Alsaadi Physics Department, Faculty of Science, Omar Al-Mukhtar University, El-Beida, Libya
Areej Hazawi Physics Department, Faculty of Science, Omar Al-Mukhtar University, El-Beida, Libya

DOI:

https://doi.org/10.36602/jsba.2022.14.38

Keywords:

Radiological hazards, Beach sediments, Gamma ray

Abstract

In this study, we measured radiological hazards associated with beach sediments in the coastal area near the city of Al-Bayda, Libya. Radiation risk was assessed by estimating radium equivalent activity (Req), absorbed dose rate (DR), and annual effective dose rate (AEDR). As well as the external health risks(Hex) of the sediment samples collected. We Studies of naturally emitted gamma rays from the three radionuclides 226Ra, 232Th and 40 K. It was found that the average values of radioactivity were 8.26 Bq/Kg, 5.95 Bq/Kg and 66.1 Bq/Kg, respectively. Gamma ray measurement was performed using the NaI (Tl) crystal detector technology. results indicates that the concentration of radioactivity corresponds to other countries of different regions the world. furthermore, radium equivalent activity (Req), absorbed dose rates (DR), and annual effective dose rate (AEDR), as well as external health risks (Hex) below average global values.

References

[1] National Research Council, in Evaluation of Guidelines for Exposures toTechnologically Enhanced Naturally Occurring Radioactive Materials. Washington, DC, 1999.

[2] National Research Council, in Uranium Mining in Virginia: Scientific, Technical, Environmental, Human Health and Safety, and Regulatory Aspects of Uranium Mining and Processing in Virginia. Washington, DC, 2012.

[3] New Mexico Bureau of Geology and Mineral Resources (NMBGMR). New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801-4796;1971

[4] W. Jacquelyne Kious and Robert I. This dynamic earth: the story of plate tectonics. U.S. Geological Survey, 1996

[5] M. Suresh Gandhi et al., _Measurements of natural gamma radiation in beach sediments of north east coast of Tamilnadu, India by gamma ray spectrometry with multivariate statistical approach. Journal of Radiation Research and Applied Sciences. 7 (2014) 17.

[6] J.U. Ahmed and H.T. Daw, Environmental impacts of the production and use of nuclear energy. A summary of the United Nations Environment Programme Study. IAEA BULLETIN. 2 (1980) 22.

[7] National Research Council, in NCRP Report No. 160, Ionizing Radiation Exposure of the Population of the United States. 2006.

[8] Belle W. Baruch, Sediment Transport and Disturbance on an Intertidal Sandat: Infaunal Distribution and Re colonization Mar. Ecol. Prog. Ser. 6 (1981) 249-255.

[9] Benjamin O. Botwe, et al., Radioactivity concentrations and their radiological signi_cance in sediments of the Tema Harbour (Greater Accra,Ghana). Journal of Radiation Research and Applied Sciences. 10 (2017) 63-71.

[10] Mitchell D. Erickson, The Procedures Manual Of The Environmental Measurements Laboratory Hasl300. 1 (1997) 28.

[11] Mattson, Barbara, Scintillators as Gammaray Detectors. NASA Imagine the Universe. 1997. Goddard Space Flight Center. (2010).

[12] Maria Sahagia, Needs Of Radioactivity Standards And Measurements In The Applications Of Nuclear Technologies. Romanian Reports In Physics, 53. (2001) 193-208.

[13] R. Ravisankar, et al., Measurement of natural radioactivity in building materials of Namakkal, Tamil Nadu, India using gamma-ray spectrometry. Applied Radiation and Isotopes 70.(2012) 699-704

[14] F.B. Masok, Et Al., Needs Of Radioactivity Standards And Measurements In The Applications Of Nuclear Technologies. Journal Of Radiation Research And Applied Sciences. 11.(2018) 29-37

[15] J. Gaffney, et al., Natural radionuclides in _ne aerosols in the Pittsburgh. Atmospheric Environment. 38. (2004) 3191-3200

[16] Unscear, United Nations Scientific Committee On The Effects Of Atomic Radiation, Sources And Effects Of Ionizing Radiation: United Nations Scientific Committee On The Effects Of Atomic Radiation. United Nations, New York, 2000 -