In situ measurement of terrestrial gamma dose rates in eastern region of Peninsular Malaysia and its relation to geological formation and soil types

Muneer Aziz Saleh; Ahmad Termizi Ramli; Khaidzir Bin Hamzah; Jasman Zainal; Mohsin Mohd Sies; Hamman Tukur Gabdo; Nuraddeen Nasiru Garba

doi:10.1515/ract-2018-2950

Article

In situ measurement of terrestrial gamma dose rates in eastern region of Peninsular Malaysia and its relation to geological formation and soil types

Muneer Aziz Saleh , Ahmad Termizi Ramli , Khaidzir Bin Hamzah , Jasman Zainal , Mohsin Mohd Sies , Hamman Tukur Gabdo and Nuraddeen Nasiru Garba

Published/Copyright: January 17, 2019

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From the journal Radiochimica Acta Volume 107 Issue 6

Abstract

This present study aims to obtain baseline data of environmental terrestrial radiation and to assess the corresponding health risk in the ambient environment in eastern region of Peninsular Malaysia. The measurements were taken 1 m above the soil surface using NaI [Ti] detector with a total of 2144 measured points which covered all geological formations and soil types. The measured gamma dose rates ranged from 26 nGy h⁻¹ to 750 nGy h⁻¹ with a mean value of 172±90 nGy h⁻¹. The mean gamma dose rate is three times higher than world averages of 57 nGy h⁻¹. The data of gamma dose rates show the reading of the gamma dose rates not fit to the normal distribution. The variations of gamma dose rates based on geological formation and soil types were investigated using the unbalanced one way ANOVA. The results indicated strong significant differences due to the different geological formations and soil types. The T-test of gamma dose rates for each pair of soil types or geological formations and their hypothesis test at 95 % confidential level were compared to shows the significant difference between each pairs. The results indicate that the gamma dose rates for all pairs of soil types were significant differed except the miscellaneous soil while the gamma dose rates of the pairs of geological formation were also significant differed except the intermediate and intrusive geological formations. Acid intrusive and intermediate intrusive geological formations has the highest mean values of 223 nGy h⁻¹ and 278 nGy h⁻¹, respectively. These values are approximately four and five times the world average. Soil type (Steep land) has the highest gamma dose rate with the mean value of 215 nGy h⁻¹. The radiological health information which are the total annual effective dose equivalent, the collective effective dose, lifetime effective dose and the lifetime cancer risk for each person are 0.844 mSv, 3.53×10³ man Sv y⁻¹, 59.10 mSv and 3.25×10⁻³, respectively. The results in eastern region of Peninsular Malaysia were comparable to different areas in Malaysia, which indicate the value reported in UNSCEAR, 2000 should be adjusted to the current status in Malaysia.

Keywords: Natural radiation; gamma dose rates; geological formations; soil types; ANOVA; T-test

Funding source: Universiti Teknologi Malaysia

Award Identifier / Grant number: Q.J130000.2546.19H71

Funding statement: The authors would like to thank the Ministry of Higher Education, Malaysia for financial support. This study is also supported by the Universiti Teknologi Malaysia through University Research Grant scheme project number Q.J130000.2546.19H71.

References

1. UNSCEAR. United Nations Scientific Committee on the Effect Atomic Radiation. Sources and Effects of Ionizing Radiation. UNSCEAR Report on The General Asembly. United Nations, New York (2000).Search in Google Scholar

2. BEIR VII.: The Biological Effects of Ionizing Radiation Health risks from exposure to low levels of ionizing radiation. The National Academy of Sciences VII, Washington, D.C. (2006).Search in Google Scholar

3. Zastawny, A., Kwasniewicz, E., Rabsztyn, B.: Measurement of the ²³²Th, ²³⁸U and ⁴⁰K concentration in some samples of ashes from power stations in Poland. Nukleonika 24, 535 (1979).Search in Google Scholar

4. Eisenbud, M., Petrow, H., Drew, R., Roser, F., Kegel, G., Cullen, T.: Naturally Occurring Radionuclides in Foods and Waters From the Brazilian Areas of High Radioactivity: Natural Radiation Environment, vol. 3 (1968), University of Chicago Press, Chicago, USA.Search in Google Scholar

5. Frenzel, E.: Basics and philosophy of environmental monitoring in Europe. In Proceedings of the 26^th midyear topical meeting, Health Physics Society 19 (1993), Coeur d’Alene, Idaho.Search in Google Scholar

6. Brazillian Academy of Sciences.: International Symposium on Areas of High Natural Radioactivity, 16–20 June 1975 Rio de Janerio, Brazil. Acad. Brazil de Ciencias ed. (1977).Search in Google Scholar

7. Erickson, J. L., Albin, L. M., Hughes, G.: Background radiation dose estimates in Washington State. In Proceeding of the 26^th midyear topical meeting, Health Physics Society 647 (1993), Coeur d’Alene, Idaho.Search in Google Scholar

8. Ramli, A. T.: Environmental terresterial gamma radiation dose and its relationship with soil type and underlying geological formation in Pontian District, Malaysia. Appl. Radiat. Isot. 48, 3 (1997).10.1016/S0969-8043(96)00264-3Search in Google Scholar

9. Maiello, M. L.: The variations in long term TLD measurements of environmental background radiation at locations in southeastern New York State and Northern New Jersey. Health Phys. 72, 6 (1997).10.1097/00004032-199706000-00010Search in Google Scholar

10. Ramli, A. T., Abdel Wahab, M. A., Wood, A. K.: Environmental ²³⁸U and ²³²Th concentration measurements in an area of high level natural background radiation at Palong, Johor, Malaysia. J. Environ. Radioact. 80, 3 (2005).10.1016/j.jenvrad.2004.06.008Search in Google Scholar

11. Malanca, A., Pessina, V., Dallara, G.: Assessment of the natural radioactivity in the Brazillian State of Rio Grande Do Norte. Health Phys. 65, 3 (1993).10.1097/00004032-199309000-00008Search in Google Scholar

12. Mohanty, A., Sengupta, D., Das, S., Saha, S., Van, K.: Natural radioactivity and radiation exposure in the high background area at Chhatrapur beach placer deposit of Orissa, India. J. Environ. Radioact. 75, 1 (2004).10.1016/j.jenvrad.2003.09.004Search in Google Scholar

13. Malanca, A., Gaidolfi, L., Pessina, V., Dallara, G.: Distribution of ²²⁶Ra, ²³²Th, and ⁴⁰K in soils of Rio Grande do Norte (Brazil). J. Environ. Radioact. 30, 1 (1996).10.1016/0265-931X(95)00035-9Search in Google Scholar

14. UNSCEAR United Nations Scientific Committee on the Effects of Atomic Radiations.: Sources, Effects and Risks of Ionising Radiation, United Nations, New York (1993).Search in Google Scholar

15. Ramli, A. T., Abdel Wahab, M. A., Lee, M. H.: Geological influence on terrestrial gamma ray dose rate in the Malaysian state of Johore. Appl. Radiat. Isot. 54, 2 (2001).10.1016/S0969-8043(00)00103-2Search in Google Scholar

16. Ramli, A. T., Sahrone, S., Wagiran, H.: Terrestrial gamma radiation dose study to determine the baseline for environmental radiological health practices in Melaka state, Malaysia. J. Radiol. Prot. 25, 4 (2005).10.1088/0952-4746/25/4/006Search in Google Scholar PubMed

17. Abdul Rahman, A. T., Ramli, A. T., Wood, A. K.: Analysis of the concentrations of natural radionuclides in Rivers in Kota Tinggi District, Malaysia. J. Nucl. Related Technol. 1, 1 (2004).Search in Google Scholar

18. Lee, S. K., Wagiran, H., Ramli, A. T., Apriantoro, N. H., Wood, A. K.: Radiological monitoring: terrestrial natural radionuclides in Kinta District, Perak, Malaysia. J. Environ. Radioact. 100, 5 (2009).10.1016/j.jenvrad.2009.01.001Search in Google Scholar PubMed

19. Almayahi, B. A., Tajuddin, A. A., Jaafar, M. S.: Effect of the natural radioactivity concentrations and ²²⁶Ra/²³⁸U disequilibrium on cancer diseases in Penang, Malaysia. Radiat. Phys. Chem. 81, 10 (2012).10.1016/j.radphyschem.2012.03.018Search in Google Scholar

20. Saleh, M. A., Ramli, A. T., Alajerami, Y., Aliyu, A. S.: Assessment of natural radiation levels and associated dose rates from surface soils in Pontian district, Johor, Malaysia. J. Ovonic Res. 9, 1 (2013).Search in Google Scholar

21. Norbani, N. E., Salim, N. A. A., Saat, A., Hamzah, Z., Ramli, A. T., Idris, W. M. R. W., Jaafar, M. Z., Bradley, D. A., Abdul Rahman, A. T.: Terrestrial gamma radiation dose rates (TGRD) from surface soil in Negeri Sembilan, Malaysia. Radiat. Phys. Chem. 104, 112 (2014).10.1016/j.radphyschem.2014.04.008Search in Google Scholar

22. Saleh, M. A., Ramli, A. T., Alajerami, Y., Aliyu, A. S.: Assessment of environmental ²²⁶Ra, ²³²Th and ⁴⁰K concentrations in the region of elevated radiation background in Segamat District, Johor, Malaysia. J. Environ. Radioact. 124, 130 (2013).10.1016/j.jenvrad.2013.04.013Search in Google Scholar PubMed

23. Omar, M., Hassan, A., Sulaiman, I.: Radiation exposure during travelling in Malaysia. Radiat. Prot. Dosim. 121, 4 (2006).10.1093/rpd/ncl060Search in Google Scholar PubMed

24. Saleh, M. A., Ramli, A. T., Alajerami, Y., Damoom, M., Aliyu, A. S.: Assessment of health hazard due to natural radioactivity in Kluang district, Johor, Malaysia. Isotopes Environ. Health Stud. 50, 1 (2013).10.1080/10256016.2013.821469Search in Google Scholar

25. Gabdo, H. T., Ramli, A. T., Saleh, M. A., Sanusi, M. S., Garba, N. N.: Terrestrial gamma dose rate in Pahang state Malaysia. J. Radioanal. Nucl. Chem. 299, 3 (2014).10.1007/s10967-014-2928-1Search in Google Scholar

26. Saleh, M. A., Ramli, A. T., Hamzah, K., Alajeramie, Y., Moharib, M., Saeed, I.: Prediction of terrestrial gamma dose rate based on geological formations and soil types in the Johor State, Malaysia. J. Environ. Radioact. 148, 111 (2015).10.1016/j.jenvrad.2015.05.019Search in Google Scholar PubMed

27. Department of Statistical Malaysia.: Basic Population Characteristics By Administrative District 2010. http://www.statistics.gov.my/mycensus2010/index.php?option=comcontent&view=article&id=158&lang=en. (2010).Search in Google Scholar

28. Department of Geological Survey.: Map of Mineral Resources in Johore State, Malaysia, 1st Edition. Ipoh, Malaysia (1982).Search in Google Scholar

29. Department of Agriculture Peninsular Malaysia.: Map of Soil Types in Peninsular Malaysia L-40A series 1st Edition. Kuala Lumpur, Malaysia (1973).Search in Google Scholar

30. ICLARM.: International Center for Living Aquatic Resources Management Malaysian Coastal Resources Study Team. The Coastal Resources Management Plan for South Johore, Malaysia: International Specialized Book Services (1992).Search in Google Scholar

31. Saleh, M. A., Ramli, A. T., Alajeramie, Y., Suhairul, H., Aliyu, A. S., Basri, N. A.: Terrestrial gamma radiation and its statistical relation with geological formation in the Mersing District, Johor, Malaysia. Radiat. Prot. Dosim. 156, 2 (2013).10.1093/rpd/nct061Search in Google Scholar PubMed

32. Ludlum.: Instruction Manual of Ludlum 2241 Micro R meter. Texas: Ludlum Measurements, Inc. (2011).Search in Google Scholar

33. Ludlum.: Instruction Manual of Ludlum Model 19 Micro R Meter. Texas: Ludlum Measurements, Inc. (1993).Search in Google Scholar

34. Knoll, G. F.: Radiation Detection and Measurement, 4^th ed. (2010), Wiley, Ann. Arbor. Michigan.Search in Google Scholar

35. Saleh, M. A., Ramli, A. T., Alajerami, Y., Aliyu, A. S., Bt Basri, N. A.: Radiological study of Mersing District, Johor, Malaysia. Radiat. Phys. Chem. 85, 107 (2013).10.1016/j.radphyschem.2012.12.045Search in Google Scholar

36. ICRP.: International Commission on Radiological Protection. 1990 Recommendations of The International Commission on Radiological Commission. Annals of the ICRP; 37. ICRP Publication 60. Pergamon Press, NY (1991), pp. 2–4.Search in Google Scholar

37. ICRU.: International Commission on Radiation Unit and Measurements. Radiation Quantities and Units in radiation Protection Dosimetry. ICRU Report 51. (1993).Search in Google Scholar

38. ICRP.: International Commission on Radiological Protection. 2007 Recommendations of The International Commission on Radiological Commission. Annals of the ICRP; 21. ICRP Publication 103. Pergamon Press, NY (2007), pp. 1–3.Search in Google Scholar

Received: 2018-02-26

Accepted: 2018-12-07

Published Online: 2019-01-17

Published in Print: 2019-06-26

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Articles in the same Issue

https://doi.org/10.1515/ract-2018-2950

Keywords for this article

Natural radiation; gamma dose rates; geological formations; soil types; ANOVA; T-test