creators_name: Masitah Alias,  
creators_name: Zaini Hamzah,  
creators_name: Ahmad Saat,  
creators_name: Muhamat Omar,  
creators_name: Zakaria Tajuddin,  
creators_id: ellyaa@yahoo.com
creators_id: drzainihamzah@yahoo.com
creators_id: ahmad183@salam.uitm.edu.my
creators_id: 
creators_id: 
type: article
datestamp: 2008-07-03 03:46:21
lastmod: 2008-07-22 14:56:00
metadata_visibility: show
corp_creators: Universiti Teknologi MARA. Faculty of Allied Sciences
corp_creators: Universiti Teknologi MARA. Faculty of Allied Sciences
corp_creators: Universiti Teknologi MARA. Faculty of Allied Sciences
corp_creators: Malaysian Institute for Nuclear Technology Research (MINT)
corp_creators: Universiti Teknologi MARA. Faculty of Applied Sciences
title: Determination of 226Ra, 228Ra and 40K in Soil from Felda Jengka-15 Oil Palm Plantation
ispublished: pub
subjects: Q
full_text_status: public
keywords: Gamma spectrometry, topsoil, natural radioisotopes
note: My sincere thanks the Universiti Teknologi Mara (UiTM) for financing this project through BRC Grant No 600-BRC/ST.5/3/599, and special thanks are also due to Masood Bin Mohamad (land owner), Encik Zahir, Encik Din (both from UiTM Jengka); Cik Zalina Laili and Puan Rusni Rejab (both are from MINT) for their assistance.
abstract: Naturally occurring radioisotopes such as 238U and 232Th are present in earth’s crust producing uranium and thorium daughters such as 226Ra and 228Ra. Radium is found at low level in soil, water, rocks, coal, plants and food. 40K also exist in the earth crust with a concentration of about 1.8 mg/kg or 13 pCi/g. In this study, the activity concentrations of 226Ra, 228Ra and 40K were determined in topsoil samples collected from 10 acres of oil palm plantation in FELDA Jengka 15, Maran District, Pahang Darul Makmur. 350 g of dried samples were ground and packed in a plastic container and allow to stabilize for at least three week before counting using gamma spectrometer with Germanium hyper pure detector (HPGe). The gamma spectra were analyzed using Genie 2000 for the activity concentrations of 226Ra and 228Ra and 40K. The results show the range of 10.5 – 35.3 Bq/kg for 226Ra, 11.4 – 42.8 Bq/kg for 228Ra and 11.3 – 156.6 Bq/kg for 40K. 
date: 2005
date_type: published
publication: Malaysian Journal of Analytical Sciences
volume: 9
number: 1
publisher: ANALIS
pagerange: 126-132
refereed: TRUE
issn: 1394-2506
referencetext: 1. Daniel J.G., Arthur W. R., John W. W., Robert R. D., Edward J. C., 1999, Geochemistry of radium in soils of the Eastern United States, J. Applied Geochemistry 14, 365-385. 

2. Bethseda M. D., Ionizing radiation exposure of the population of the United States, National Council on Radiation Protection, NRCP Rep.93. 1987. 

3. Nathwani J.S. & Philips, C.R., 1979. Absorption of Ra-226 by soils. J. Chemosphere 5, 285-291. 

4. Megumi K., 1979, Radioactive disequilibrium of uranium and actinium series nuclides in soil. J. Geophys.Res.84.3677-3682. 

5. Taskayev A. L., Ovchenokov V.Y., Aleksakhin R. M.,1978. Forms of Ra-226 in the horizons of soils with a high concentration of this isotope. J. Sov.Soil Sci.10, 45-51. 

6. Adam K. S. & Ake E., 1995, Radium-226 uptake by vegetation grown in Western Sudan. J. Environ Radioactivity, 29 (1), 27-38 

7. Human Health Fact Sheet, 2001, Potassium-40, Retrieved June 11, 2004 from http://www.oversight.state:id/or-library/contaminat-Fact-Sheets/potassium,Factsheet-ANL.pdf 

8. Standard Operating Procedure to Surface and Subsurface Soil Sampling, California Department of Pesticide Regulation Environmental Hazard Assessment Program, California FSSO 002.00,1999 

9. Omar M., Ali H.M., Abu M.P., Kontol K.M., Ahmad Z., Ahmad S.H.S.S., Sulaiman I. and Hamzah R., 2004, Distribution of radium in oil and gas industry wastes from Malaysia, Applied Radiation and Isotopes. 60(5) 779-782 

10. Panduan Mengenali Siri-Siri Tanah diSemenanjung Malaysia, Jabatan Pertanian Semenajung Malaysia, 1993, pp 19,26,29,54-64,80,83. 

11. Martz L. W. & de Jong E., 1990, Natural Radionuclides in the soils of a small agricultural basin in the Canadian Prairies and their association with topography, soil properties and erosion. CATENA - An Interdisciplinary J. Soil Science-Hydrology-Geomorphology, 17, 85-96. 

12. Toxicological Profile for Radium.: Agency for Toxic Substances and Disease Registry, Atlanta, Georgia 1990. 

13. Schulte E. E., 2000, Soil and applied potassium, A (2521) Retrieved June 11, 2004 from http://www.uwex.edu/ces/pubs/pdf/A2521.pdf

14. George W. R. & Michael S., 1997, Potassium for crop production, FO-06794-GO Retrieved August 16, 2004, from http://www.extension.umn.edu/distribution/copsystem/DC6974 html 

15. Molinari J. & Snodgrass W. J., 1990, Radiochemistry of radium and the other elements of uranium and thorium natural decays series, The Chemistry International Atomic Energy Agency Vienna, Tech. Rep.310, 1 10-56. 
citation: Masitah Alias, and Zaini Hamzah, and Ahmad Saat, and Muhamat Omar, and Zakaria Tajuddin, (2005) Determination of 226Ra, 228Ra and 40K in Soil from Felda Jengka-15 Oil Palm Plantation. Malaysian Journal of Analytical Sciences, 9 (1). pp. 126-132. ISSN 1394-2506
document_url: http://myais.fsktm.um.edu.my/2268/1/Masitah_Alias.pdf