Simultaneous determination of232Th and238U in biological samples. Application to the estimation of their daily intake through diet

Dang, H.S.; Pullat, V.R.; Pillai, K. Chandrasekara

doi:10.1007/bf02039937

Cited by 16 publications

(2 citation statements)

References 11 publications

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“…Uranium and thorium concentrations have been measured in various food and drink samples in Hong-Kong by using gamma-ray spectrometry (Yu and Mao, 1999). Simultaneous determination of 238 U and 232 Th in some Indian biological reference materials has been performed by using neutron activation analysis and radiochemical separation (Dang et al, 1992). However, this technique is both destructive and expensive.…”

Section: Introductionmentioning

confidence: 99%

²³⁸U and²³²Th concentrations in various foodstuffs in Morocco and resulting radiation doses to the members of the public

2008

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Section: Introductionmentioning

confidence: 99%

²³⁸U and²³²Th concentrations in various foodstuffs in Morocco and resulting radiation doses to the members of the public

2008

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“…Uranium and thorium concentrations have been measured in various food and drink samples by using gamma-ray spectrometry [5]. Simultaneous determination of 238 U and 232 Th in some biological reference materials has been performed by using neutron activation analysis and radiochemical separation [6]. However, this technique is both destructive and expensive.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of annual committed effective doses to members of the public in Morocco due to²³⁸U and²³²Th in various food materials

Misdaq

Bourzik²

2004

J. Radiol. Prot.

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Uranium (238U) and thorium (232Th) concentrations were measured in different foods widely consumed in Morocco by using CR-39 and LR-115 type II solid state nuclear track detectors (SSNTDs). Annual committed effective doses due to 238U and 232Th intakes from the ingestion of the studied food materials were evaluated for different age groups of individuals, using the ICRP ingestion dose coefficients. The influence of the 238U and 232Th intakes and ages of individuals on the committed effective dose was investigated. Total annual intakes of 238U and 232Th for a typical food basket for adult members of the Moroccan population were estimated to be 451 +/- 27 Bq y(-1) and 359 +/- 20 Bq y(-1), corresponding to committed effective doses of (20 +/- 1) x 10(-6) Sv y(-1) and (83 +/- 5) x 10(-6) Sv y(-1), respectively.

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Radiation doses to individuals due to 238U, 232Th and 222Rn from the immersion in thermal waters and to radon progeny from the inhalation of air inside thermal stations

Misdaq

Ghilane

Ouguidi

et al. 2012

Radiat Environ Biophys

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In Morocco, thermal waters have been used for decades for the treatment of various diseases. To explore the exposure pathway of (238)U, (232)Th and (222)Rn to the skin of bathers from the immersion in thermal waters, these radionuclides were measured inside waters collected from different Moroccan thermal springs, by means of CR-39 and LR-115 type II solid-state nuclear track detectors (SSNTDs), and corresponding annual committed effective doses to skin were determined. Accordingly, to assess radiation dose due to radon short-lived decay products from the inhalation of air by individuals, concentrations of these radionuclides were measured in indoor air of two thermal stations by evaluating mean critical angles of etching of the CR-39 and LR-115 II SSNTDs. Committed effective doses due to the short-lived radon decay products (218)Po and (214)Po by bathers and working personnel inside the thermal stations studied were determined.

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Simultaneous determination of232Th and238U in biological samples. Application to the estimation of their daily intake through diet

Cited by 16 publications

References 11 publications

²³⁸U and²³²Th concentrations in various foodstuffs in Morocco and resulting radiation doses to the members of the public

²³⁸U and²³²Th concentrations in various foodstuffs in Morocco and resulting radiation doses to the members of the public

Evaluation of annual committed effective doses to members of the public in Morocco due to²³⁸U and²³²Th in various food materials

Radiation doses to individuals due to 238U, 232Th and 222Rn from the immersion in thermal waters and to radon progeny from the inhalation of air inside thermal stations

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Simultaneous determination of232Th and238U in biological samples. Application to the estimation of their daily intake through diet

Cited by 16 publications

References 11 publications

238U and232Th concentrations in various foodstuffs in Morocco and resulting radiation doses to the members of the public

238U and232Th concentrations in various foodstuffs in Morocco and resulting radiation doses to the members of the public

Evaluation of annual committed effective doses to members of the public in Morocco due to238U and232Th in various food materials

Radiation doses to individuals due to 238U, 232Th and 222Rn from the immersion in thermal waters and to radon progeny from the inhalation of air inside thermal stations

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Product

Resources

About

²³⁸U and²³²Th concentrations in various foodstuffs in Morocco and resulting radiation doses to the members of the public

²³⁸U and²³²Th concentrations in various foodstuffs in Morocco and resulting radiation doses to the members of the public

Evaluation of annual committed effective doses to members of the public in Morocco due to²³⁸U and²³²Th in various food materials