Research Article | | Peer-Reviewed

Assessment of Natural Radioactivity in Cements (Local and Imported) in Mali

Received: 17 July 2024     Accepted: 14 August 2024     Published: 30 August 2024
Views:       Downloads:
Abstract

Background: In this article, the radioactivity concentrations of U-238, Th-232 and K-40 (NORM) and radiological hazard parameters in different types of cements commonly used in Mali and available on the Malian market have been analyzed. The obtained values of NORM concentrations and radiological hazards in seven (07) cements samples will permit to the AMARAP to estimate the exposure (gamma rays) from the buildings and dwellings made by these cements. It will permit also to determine any over exposure (determinist effects which are an immediate tissue reaction due to the high exposition of ionizing radiation) and minimize as well the associated risk due to low doses (stochastic effects). Materials and Methods: The health impact due to the exposure of radionuclides from these cements was evaluated by the determination of specific activity of radionuclides U-238, Th-232 and K-40 using gamma spectrometry analysis. The radiological hazards such as Absorbed Dose Rate (Ḋ) Annual Effective Dose (Ė) Internal and External Dose indexes (Hin and Hex) were evaluated in these cements samples. Results: The range of specific activities for U-238 vary from 21.77 ± 1.50 to 145.31 ± 7.70 Bq/kg, for Th-232 from 8.85 ± 0.52 to 73.56 ± 3.82 Bq/kg and for K-40 from 104.27 ± 5.63 to 351.97 ± 18.08 Bq/kg. The peak of U-238 wasn’t detected only in one (01) sample (CIM04). The highest value of specific activity was reported in sample CIM07 (DANGOTE). The values of radiological hazard such as Ḋ, Ė, Hin and Hex from this work were within the dose criteria limits given by international organizations (ICRP and UNSCEAR) and national standards. Conclusion: This study shows the analyzed cements do not pose any significant source of radiation hazard and are safe for use in the construction of dwellings even if the risk (stochastic effect) associated with low dose exists. Special attention and more analyzes must be done on them for more protection of public health.

Published in Radiation Science and Technology (Volume 10, Issue 3)
DOI 10.11648/j.rst.20241003.11
Page(s) 37-42
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Buildings, Cement, Dwellings, Radiological Hazards, Specific Activity

References
[1] A. Eštoková, L. Palaščáková, Study of Natural Radioactivity of Slovak Cements (2013).
[2] P. A. Kumara, P. Mahakumara, A. Jayalath, C. P. Jayalth, Estimating natural radiation exposure from building materials used in Sri Lanka, J. Radiat. Res. Appl. Sci. 11, 350–354 (2018).
[3] European Commission (EC), Radiological protection principles concerning the natural radioactivity of building materials. Directorate – general environment, nuclear safety and civil protection, Radiat. Protect. 112, 1–16 (1999).
[4] F. B. Masok, P. L. Masiteng, R. D. Mavunda et al., Measurement of radioactivity concentration in soil samples around phosphate rock storage facility in Richards Bay, South Africa, J. Radiat. Res. Appl. Sci. 11, 29–36 (2018).
[5] N. Damla, U. Cevik, A. I. Kobya et al. Radiation dose estimation and mass attenuation coefficients of cement samples used in Turkey, J. Hazardous Mater. 176, 644–649 (2010).
[6] T. Abate, Radioactivity and health risk assessments in cement samples commonly used as construction materials in the case of South Gondar Zone, Ethiopia, (June 2022).
[7] K. Khan, H. M. Khan, Natural gamma-emiting radionuclides in Pakistani Portland cement, Applied Radiation and Isotopes 54, 861-865 (2001).
[8] A. El-Taher, S. Makhluf, A. Nossair, A. S. Abdel Halim, Assessment of natural radioactivity levels and radiation hazards due to cement industry, Applied Radiation and Isotopes 68, 169-174, (2010).
[9] A. B. D Elghany, A. M. Abdel-Monem, M. A. El-Samad, Assessment of Natural radioactivity and Associated Radiiation Hazards in some Egyptian and Yemenian Cement Samples (2013).
[10] United Nations Scientific Committee on the Effects of Atomic Radiation. Sources and effects of ionizing radiation [Internet]. UNSCEAR; (2008).
[11] A. K. Ademola, O. P. Ademola et al., Assessment of natural radioactivity levels in cement samples commonly used for construction in Lagos and Ogun State, Nigeria, Nucl. Radiat. Phys. 102, 44416–44420 (2017).
[12] Décret N°2014-0931/P-RM, Fixant les Règles Relatives à la Protection contre les Rayonnements Ionisants à la Sûreté et la Sécurité des Sources de Rayonnements Ionisants. In English: [Fixing relatives rules to protection against ionizing radiation, safety and security of ionizing radiation sources in Mali] (31 décembre 2014).
[13] X. Lu, S. Chao, F. Yang, Determination of natural radioactivity and associated radiation hazard in building materials used in Weinan, China. Radiat Phy Chem.
[14] M. I. Chowdhury, M. N. Alam, A. K. S. Ahmed, Concentration of radionuclides in building and ceramic materials of Bangladesh and evaluation of radiation hazard. J Radioanal Nucl Chem.
[15] O. Baykara, S. Karatepe, M. Dogru, Assessments of natural radioactivity and radiological hazards in construction materials used in Elazig, Turkey. Radiat Meas. https://doi.org/10.1016/j.radmeas. 2010.08.010 (2011).
[16] H. Papaefthymiou, O. Gouseti, Natural radioactivity and associated radiation hazards in building materials used in Peloponnese, Greece. Radiat Meas.
[17] D. Amrani, M. Tahtat, Natural radioactivity in Algerian building materials. Appl Radiat Isot.
[18] M. Y. Shoeib, K. M. Thabayneh, Assessment of natural radiation exposure and radon exhalation rate in various samples of Egyptian building materials. J Radiat Res Appl Sci.
[19] D. O. Kpeglo, H. Lawluvi, A. Faanu, A. R. Awudu, P. Deatanyah, S. G. Wotorchi, C. C. Arwui, G. Emi-Reynolds, E. O. Darko, Natural radioactivity and its associated radiological hazards in Ghanaian cement. J Environ Earth Sci 3(2): 160–166, (2011).
[20] Commission European Radiological protection principles concerning the natural radioactivity of building materials. Radiat Prot 112: 1–16, (1999).
Cite This Article
  • APA Style

    Coulibaly, A., Nafogou, F. D. N., Kone, B., Dicko, A. A. M., Camara, O. (2024). Assessment of Natural Radioactivity in Cements (Local and Imported) in Mali. Radiation Science and Technology, 10(3), 37-42. https://doi.org/10.11648/j.rst.20241003.11

    Copy | Download

    ACS Style

    Coulibaly, A.; Nafogou, F. D. N.; Kone, B.; Dicko, A. A. M.; Camara, O. Assessment of Natural Radioactivity in Cements (Local and Imported) in Mali. Radiat. Sci. Technol. 2024, 10(3), 37-42. doi: 10.11648/j.rst.20241003.11

    Copy | Download

    AMA Style

    Coulibaly A, Nafogou FDN, Kone B, Dicko AAM, Camara O. Assessment of Natural Radioactivity in Cements (Local and Imported) in Mali. Radiat Sci Technol. 2024;10(3):37-42. doi: 10.11648/j.rst.20241003.11

    Copy | Download

  • @article{10.11648/j.rst.20241003.11,
      author = {Adama Coulibaly and Fatoumata Dite Niaber Nafogou and Binefou Kone and Aly Ag Mohamed Dicko and Oumou Camara},
      title = {Assessment of Natural Radioactivity in Cements (Local and Imported) in Mali
    },
      journal = {Radiation Science and Technology},
      volume = {10},
      number = {3},
      pages = {37-42},
      doi = {10.11648/j.rst.20241003.11},
      url = {https://doi.org/10.11648/j.rst.20241003.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.rst.20241003.11},
      abstract = {Background: In this article, the radioactivity concentrations of U-238, Th-232 and K-40 (NORM) and radiological hazard parameters in different types of cements commonly used in Mali and available on the Malian market have been analyzed. The obtained values of NORM concentrations and radiological hazards in seven (07) cements samples will permit to the AMARAP to estimate the exposure (gamma rays) from the buildings and dwellings made by these cements. It will permit also to determine any over exposure (determinist effects which are an immediate tissue reaction due to the high exposition of ionizing radiation) and minimize as well the associated risk due to low doses (stochastic effects). Materials and Methods: The health impact due to the exposure of radionuclides from these cements was evaluated by the determination of specific activity of radionuclides U-238, Th-232 and K-40 using gamma spectrometry analysis. The radiological hazards such as Absorbed Dose Rate (Ḋ) Annual Effective Dose (Ė) Internal and External Dose indexes (Hin and Hex) were evaluated in these cements samples. Results: The range of specific activities for U-238 vary from 21.77 ± 1.50 to 145.31 ± 7.70 Bq/kg, for Th-232 from 8.85 ± 0.52 to 73.56 ± 3.82 Bq/kg and for K-40 from 104.27 ± 5.63 to 351.97 ± 18.08 Bq/kg. The peak of U-238 wasn’t detected only in one (01) sample (CIM04). The highest value of specific activity was reported in sample CIM07 (DANGOTE). The values of radiological hazard such as Ḋ, Ė, Hin and Hex from this work were within the dose criteria limits given by international organizations (ICRP and UNSCEAR) and national standards. Conclusion: This study shows the analyzed cements do not pose any significant source of radiation hazard and are safe for use in the construction of dwellings even if the risk (stochastic effect) associated with low dose exists. Special attention and more analyzes must be done on them for more protection of public health.
    },
     year = {2024}
    }
    

    Copy | Download

  • TY  - JOUR
    T1  - Assessment of Natural Radioactivity in Cements (Local and Imported) in Mali
    
    AU  - Adama Coulibaly
    AU  - Fatoumata Dite Niaber Nafogou
    AU  - Binefou Kone
    AU  - Aly Ag Mohamed Dicko
    AU  - Oumou Camara
    Y1  - 2024/08/30
    PY  - 2024
    N1  - https://doi.org/10.11648/j.rst.20241003.11
    DO  - 10.11648/j.rst.20241003.11
    T2  - Radiation Science and Technology
    JF  - Radiation Science and Technology
    JO  - Radiation Science and Technology
    SP  - 37
    EP  - 42
    PB  - Science Publishing Group
    SN  - 2575-5943
    UR  - https://doi.org/10.11648/j.rst.20241003.11
    AB  - Background: In this article, the radioactivity concentrations of U-238, Th-232 and K-40 (NORM) and radiological hazard parameters in different types of cements commonly used in Mali and available on the Malian market have been analyzed. The obtained values of NORM concentrations and radiological hazards in seven (07) cements samples will permit to the AMARAP to estimate the exposure (gamma rays) from the buildings and dwellings made by these cements. It will permit also to determine any over exposure (determinist effects which are an immediate tissue reaction due to the high exposition of ionizing radiation) and minimize as well the associated risk due to low doses (stochastic effects). Materials and Methods: The health impact due to the exposure of radionuclides from these cements was evaluated by the determination of specific activity of radionuclides U-238, Th-232 and K-40 using gamma spectrometry analysis. The radiological hazards such as Absorbed Dose Rate (Ḋ) Annual Effective Dose (Ė) Internal and External Dose indexes (Hin and Hex) were evaluated in these cements samples. Results: The range of specific activities for U-238 vary from 21.77 ± 1.50 to 145.31 ± 7.70 Bq/kg, for Th-232 from 8.85 ± 0.52 to 73.56 ± 3.82 Bq/kg and for K-40 from 104.27 ± 5.63 to 351.97 ± 18.08 Bq/kg. The peak of U-238 wasn’t detected only in one (01) sample (CIM04). The highest value of specific activity was reported in sample CIM07 (DANGOTE). The values of radiological hazard such as Ḋ, Ė, Hin and Hex from this work were within the dose criteria limits given by international organizations (ICRP and UNSCEAR) and national standards. Conclusion: This study shows the analyzed cements do not pose any significant source of radiation hazard and are safe for use in the construction of dwellings even if the risk (stochastic effect) associated with low dose exists. Special attention and more analyzes must be done on them for more protection of public health.
    
    VL  - 10
    IS  - 3
    ER  - 

    Copy | Download

Author Information
  • Sections