The Malaysian Journal of Analytical Sciences Vol 12 No 2 (2008): 419 – 431







Zaini Hamzah1, Ahmad Saat2, Noor Hayati Mashuri1 and Seh Datul Redzuan1


1 Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam

2 Institute of Science, Universiti Teknologi MARA, 40450 Shah Alam



The amount of natural radionuclide present in environment, especially soils, sediment and water in the abundance tin mining area are varies depending on the amount of heavy minerals left over in that particular place. If the place used to be the processing area for tin ores, the left over known as ‘amang’ contains heavy minerals. This study was carried out in UiTM Training Center, Kg Gajah, within Kinta Valley Perak which used to be the active tin mine area in the past. Surface doses were measured using Ludlum dose rate meter, at the surface and 1 meter above the surface. The radionuclides content were measured by collecting soil samples, dried, ground, sieved using 250 µm sieve, packed in a container and counted after 4 weeks using gamma spectrometer with HPGe detector. The level of surface dose varies from one location to another, but there is a critical area which has a significantly high surface dose approaching 30 µSv/hr. The mean activity concentrations in the critical area for 40K, 226Ra and 228Ra are 2521±298 Bq/kg, 3798±419 Bq/kg and 12896±1533 Bq/kg respectively. The hazard index for the critical area seems to be extremely high and is not safe for people to be there.


Keywords: surface radiation dose, tin mine, heavy minerals, natural radionuclide.



1.       Ahmad Termizi Ramli, A.Wahab M.A.Hussein, A.Khalik Wood (2005). Environmental 238U and 232Th concentration measurements in an area of high level natural background radiation at Palong, Johor, Malaysia, 80, 287-304 

2.       Ahmad Termizi Ramli, Abdel Wahab M.A.Hussein, M.H.Lee(2001). Geological influence on Terrestrial gamma radiation dose rate in the Malaysian State of Johore, 54.327-333

3.       Ahmad Termizi Ramli (1997). Environmental Terrestrial Gamma Radiation Dose and its Relationship with Soil Type and Underlying Geological Formations in Pontian District, Malaysia, 48(3), 407-412

4.       Ahmad Termizi Ramli, Ahmad Taufek Abdul Rahman, M.H.Lee (2003). Statistical prediction of terrestrial gamma radiation dose rate based on geological features and soil types in Kota Tinggi district, Malaysia, 59, 393-405

5.       Alam M.N., Chowdhury M.I., Kamal, S. Ghose, Islam M.N., Mustafa M.N., Miah M.M.H., Ansary M.M(1999).The 226Ra, 232Th and 40K activities in beach sand minerals and beach soils of Cox's Bazar, Bangladesh, 46, 243-250

6.       Anselmo S.Paschoa, Jose M.Godoy(2002), The Areas of High Natural Radioactivity and TENORM wastes, International Congress Series 1225, 3-8

7.       Asha Rani, Surinder Singh (2005). Natural radioactivity levels in soil samples from some areas of Himachal Pradesh, India using γ-ray spectrometry,39, 6306-6314

8.       Colmenero Sujo L, Montero Cabrere M.E, Vilalba., Rentia Villalobos M, Torre Moye E (2004)Uranium-238 and thorium-232 series concentrations in soil, Radon-222 indoor and drinking water concentrations and dose assessment in the city of Aldama, Chihuahua, Mexico, 77, 205-219

9.       El Afifi E.M, Hilal M.a, Khalifa S.M, Aly H.F (2006), Evaluation of U, Th, K and emanated radon in some NORM and TENORM samples, 41, 627-633

10.    Funtua I.I.,.Elegba S.B (2005), Radiation exposure from high-level radiation area and related mining and processing activities of Jos Plateau, central Nigeria, 1276, 401-402

11.    Galindo C, Mougin L, Fakhi S, Nourreddine A, Lamghari, Hannache H(2007), Distribution of naturally occurring radionuclides (U & Th) in Timahdit black shale (Morocco), 92, 41-54

12.    Hassan A.M., M.Abdel Wahab et al(1997). Determination of uranium and thorium in Egyptian monazite by gamma-ray spectrometry, 48, 149-152

13.    IAEA, International Atomic Energy Agency ( 2003), Extent of Environmental Contamination by Naturally Occurring Radioactive Material (NORM) and Technological Options for Mitigation, Technical Report Series 419, Vienna.

14.    Ibeanu I.G.E (2003), Tin mining and processing in Nigeria: cause for concern, 64, 59-66

15.    Kurnaza A, B, Keser R,. Okumusoglu N.T, Korkmaz F., G. Karahan, Cevik U(2007). Determination of radioactivity levels and hazards of soil and sediment samples in Fırtına Valley (Rize, Turkey) , 65,1281–1289

16.    Miah F. K., Roy S., Touhiduzzaman M.  and Alam B(1998). Distribution of  Radionuclides in Soil Samples in and Around Dhaka City, 49, 133-137

17.    Misdaq M.A., Elamyn H (2006).. 238U and 232Th contents in common foods in Morocco and Resulting Radiation doses to the general population,41, 452-460

18.    Michael F.L’Annunziata(2003) , Handbook of Radioactivity Analysis, 2nd Edition, Academic Press

19.    Michalis Tzortzis, Haralabos Tsertos, (2004), Determination of thorium, uranium and potassium elemental concentrations in surface soils in Cyprus, 77, 325-338

20.    Merdanuglo B. and Altinsoy N (2006), Radioactivity concentrations and dose assessment for soil samples from Kestanbol granite area, Turkey, 121, 399-405

21.    Merril Eisenbud (1973), Environmental Radioactivity, 2nd Edition, Academic Press

22.    Mollah, A.S, Rahman, Koddus, Hussain and Malek(1987), Measurement of High Natural Background Radiation Levels by TLD at Cox’s Bazar coastal areas in Bangladesh,18, 39-41.

23.    Paul A.C., P.M.B.Pillai, P.P Haridasan, Sujatha Radhakrishnan, and S.Krishnamony 1998). Population exposure to airborne thorium at the high natural radiation areas in India, 40, 251-259

24.    Pham Van Duong, M.Tschurlovits and K.Buctela (1996). Enrichment of radioactive materials in sand deposits of Vietnam as a result of mineral processing, 22, 271-274

25.    Shenber M. A(1997), Measurement of Natural Radioactivity Levels in Soil in Tripoli, 48 (1) 147-148

26.    Selvasekarapandiana S, Sivakumara R, Manikandana N.M, Meenakshisundaram V, Raghunath V.M, Gajendra V (2000), Natural radionuclide distribution in soils of Gudalore, India, 52, 299-306

27.    Seref Turhan and Lufullah Gunduz (2007), Determination of specific activity of 226Ra, 232Th and 40K for assessment of radiation hazards from Turkish pumice samples, 1-11

28.    Trade and Environment Database (TED) Case Studies, Tin Mining in Malaysia (

29.    Van der Steen J. and Van Weer A.W., Radiation Protection in NORM industries(2000)

30.    Ya-xin Yang, Xin-Min Wu(2005). Radioactivity concentrations in soils of the Xiazhuang granite area, China, 63, 255-259

31.    Yu K.N., Guan Z.J., Stokes M.J. and Young E.C.M. (1992). The Assessment of the Natural Radiation Dose Committed to the Hong Kong People,17, 31-48

32.    Zaidi J.H., Arif M., Ahamad S(1999). Determination of Natural Radioactivity in Building Materials used in the Rawalpandi/Islamabad area by gamma-ray spectrometry and instrumental neutron activation analysis, 51, 559-564


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