Assessment of Natural Radioactivity Levels and Radiation Hazards in Agricultural and Virgin Soil in the State of Kedah, North of Malaysia

Ghazwa Alzubaidi, Fauziah B S Hamid, Irman Abdul Rahman

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The activity concentrations of naturally occurring radionuclides 226Ra, 232Th, and 40K were determined in 30 agricultural and virgin soil samples randomly collected from Kedah, north of Malaysia, at a fertile soil depth of 0-30 cm. Gamma-ray spectrometry was applied using high-purity germanium (HPGe) gamma-ray detector and a PC-based MCA. The mean radioactivity concentrations of 226Ra, 232Th, and 40K were found to be 102.08 ± 3.96, 133.96 ± 2.92, and 325.87 ± 9.83 Bq kg-1, respectively, in agricultural soils and 65.24 ± 2.00, 83.39 ± 2.27, and 136.98 ± 9.76 Bq kg-1, respectively, in virgin soils. The radioactivity concentrations in agricultural soils are higher than those in virgin soils and compared with those reported in other countries. The mean values of radium equivalent activity (Raeq), absorbed dose rates D (nGy h-1), annual effective dose equivalent, and external hazard index (Hex) are 458.785 Bq kg-1, 141.62 nGy h-1, and 0.169 mSv y-1, respectively, in agricultural soils and 214.293 Bq kg-1, 87.47 nGy h-1, and 0.106 mSv y-1, respectively, in virgin soils, with average Hex of 0.525. Results were discussed and compared with those reported in similar studies and with internationally recommended values.

Original languageEnglish
Article number6178103
JournalScientific World Journal
Volume2016
DOIs
Publication statusPublished - 2016

Fingerprint

Radiation hazards
Malaysia
Radioactivity
Soil
agricultural soil
hazard
Radiation
Soils
radioactivity
soil
gamma ray spectrometry
germanium
radium
Gamma Rays
soil depth
Gamma rays
radionuclide
Gamma Spectrometry
Germanium
Radium

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)

Cite this

Assessment of Natural Radioactivity Levels and Radiation Hazards in Agricultural and Virgin Soil in the State of Kedah, North of Malaysia. / Alzubaidi, Ghazwa; Hamid, Fauziah B S; Abdul Rahman, Irman.

In: Scientific World Journal, Vol. 2016, 6178103, 2016.

Research output: Contribution to journalArticle

@article{f9b2c69f14c041babfa755d0db2bf592,
title = "Assessment of Natural Radioactivity Levels and Radiation Hazards in Agricultural and Virgin Soil in the State of Kedah, North of Malaysia",
abstract = "The activity concentrations of naturally occurring radionuclides 226Ra, 232Th, and 40K were determined in 30 agricultural and virgin soil samples randomly collected from Kedah, north of Malaysia, at a fertile soil depth of 0-30 cm. Gamma-ray spectrometry was applied using high-purity germanium (HPGe) gamma-ray detector and a PC-based MCA. The mean radioactivity concentrations of 226Ra, 232Th, and 40K were found to be 102.08 ± 3.96, 133.96 ± 2.92, and 325.87 ± 9.83 Bq kg-1, respectively, in agricultural soils and 65.24 ± 2.00, 83.39 ± 2.27, and 136.98 ± 9.76 Bq kg-1, respectively, in virgin soils. The radioactivity concentrations in agricultural soils are higher than those in virgin soils and compared with those reported in other countries. The mean values of radium equivalent activity (Raeq), absorbed dose rates D (nGy h-1), annual effective dose equivalent, and external hazard index (Hex) are 458.785 Bq kg-1, 141.62 nGy h-1, and 0.169 mSv y-1, respectively, in agricultural soils and 214.293 Bq kg-1, 87.47 nGy h-1, and 0.106 mSv y-1, respectively, in virgin soils, with average Hex of 0.525. Results were discussed and compared with those reported in similar studies and with internationally recommended values.",
author = "Ghazwa Alzubaidi and Hamid, {Fauziah B S} and {Abdul Rahman}, Irman",
year = "2016",
doi = "10.1155/2016/6178103",
language = "English",
volume = "2016",
journal = "Scientific World Journal",
issn = "2356-6140",
publisher = "Hindawi Publishing Corporation",

}

TY - JOUR

T1 - Assessment of Natural Radioactivity Levels and Radiation Hazards in Agricultural and Virgin Soil in the State of Kedah, North of Malaysia

AU - Alzubaidi, Ghazwa

AU - Hamid, Fauziah B S

AU - Abdul Rahman, Irman

PY - 2016

Y1 - 2016

N2 - The activity concentrations of naturally occurring radionuclides 226Ra, 232Th, and 40K were determined in 30 agricultural and virgin soil samples randomly collected from Kedah, north of Malaysia, at a fertile soil depth of 0-30 cm. Gamma-ray spectrometry was applied using high-purity germanium (HPGe) gamma-ray detector and a PC-based MCA. The mean radioactivity concentrations of 226Ra, 232Th, and 40K were found to be 102.08 ± 3.96, 133.96 ± 2.92, and 325.87 ± 9.83 Bq kg-1, respectively, in agricultural soils and 65.24 ± 2.00, 83.39 ± 2.27, and 136.98 ± 9.76 Bq kg-1, respectively, in virgin soils. The radioactivity concentrations in agricultural soils are higher than those in virgin soils and compared with those reported in other countries. The mean values of radium equivalent activity (Raeq), absorbed dose rates D (nGy h-1), annual effective dose equivalent, and external hazard index (Hex) are 458.785 Bq kg-1, 141.62 nGy h-1, and 0.169 mSv y-1, respectively, in agricultural soils and 214.293 Bq kg-1, 87.47 nGy h-1, and 0.106 mSv y-1, respectively, in virgin soils, with average Hex of 0.525. Results were discussed and compared with those reported in similar studies and with internationally recommended values.

AB - The activity concentrations of naturally occurring radionuclides 226Ra, 232Th, and 40K were determined in 30 agricultural and virgin soil samples randomly collected from Kedah, north of Malaysia, at a fertile soil depth of 0-30 cm. Gamma-ray spectrometry was applied using high-purity germanium (HPGe) gamma-ray detector and a PC-based MCA. The mean radioactivity concentrations of 226Ra, 232Th, and 40K were found to be 102.08 ± 3.96, 133.96 ± 2.92, and 325.87 ± 9.83 Bq kg-1, respectively, in agricultural soils and 65.24 ± 2.00, 83.39 ± 2.27, and 136.98 ± 9.76 Bq kg-1, respectively, in virgin soils. The radioactivity concentrations in agricultural soils are higher than those in virgin soils and compared with those reported in other countries. The mean values of radium equivalent activity (Raeq), absorbed dose rates D (nGy h-1), annual effective dose equivalent, and external hazard index (Hex) are 458.785 Bq kg-1, 141.62 nGy h-1, and 0.169 mSv y-1, respectively, in agricultural soils and 214.293 Bq kg-1, 87.47 nGy h-1, and 0.106 mSv y-1, respectively, in virgin soils, with average Hex of 0.525. Results were discussed and compared with those reported in similar studies and with internationally recommended values.

UR - http://www.scopus.com/inward/record.url?scp=85000692278&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85000692278&partnerID=8YFLogxK

U2 - 10.1155/2016/6178103

DO - 10.1155/2016/6178103

M3 - Article

C2 - 27965987

AN - SCOPUS:85000692278

VL - 2016

JO - Scientific World Journal

JF - Scientific World Journal

SN - 2356-6140

M1 - 6178103

ER -