Determination of 238U, 232Th and 40K activity concentrations in riverbank soil along the Chao Phraya river basin in Thailand

T. Santawamaitre, D. Malain, Huda Al-Sulaiti, D. A. Bradley, M. C. Matthews, P. H. Regan

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The activity concentrations of 238U, 232Th and 40K in riverbank soil along the Chao Phraya river basin was determined through gamma-ray spectrometry measurements made using a hyper-pure germanium detector in a low background configuration. The ranges of activity concentrations of 238U, 232Th and 40K were found to be 13.9 ↔ 76.8, 12.9 ↔ 142.9 and 178.4 ↔ 810.7 Bq kg-1, respectively. The anthropogenic radionuclide, 137Cs, was not observed in statistically significant amounts above the background level in the current study. The absorbed gamma dose rate in air at 1 m above the ground surface, the outdoor annual effective dose equivalent, the values of the radium equivalent activity and the external hazard index associated with all the soil samples in the present work were evaluated. The results indicate that the radiation hazard from primordial radionuclides in all soil samples from the area studied in this current work is not significant.

Original languageEnglish
Pages (from-to)80-86
Number of pages7
JournalJournal of Environmental Radioactivity
Volume138
DOIs
Publication statusPublished - 18 Jul 2014
Externally publishedYes

Fingerprint

Thailand
Rivers
Catchments
Soil
river basin
Soils
Radioisotopes
radionuclide
Gamma Spectrometry
Radiation hazards
hazard
Germanium
Radium
gamma ray spectrometry
germanium
soil
radium
Gamma Rays
background level
Gamma rays

Keywords

  • Gamma-ray spectrometry
  • Naturally occurring radioactive materials
  • NORM

ASJC Scopus subject areas

  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Determination of 238U, 232Th and 40K activity concentrations in riverbank soil along the Chao Phraya river basin in Thailand. / Santawamaitre, T.; Malain, D.; Al-Sulaiti, Huda; Bradley, D. A.; Matthews, M. C.; Regan, P. H.

In: Journal of Environmental Radioactivity, Vol. 138, 18.07.2014, p. 80-86.

Research output: Contribution to journalArticle

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AU - Matthews, M. C.

AU - Regan, P. H.

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