Radon () level variations on a regional scale: influence of the basement trace element (U, Th) geochemistry on radon exhalation rates

Ielsch, Géraldine; Thiéblemont, Denis; Labed, V.; Richon, Patrick; Tymen, G.; Ferry, Cécile; Robé, M.C.; Baubron, Jean-Claude; Béchennec, F.

doi:10.1016/s0265-931x(00)00106-5

Cited by 55 publications

(28 citation statements)

References 16 publications

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“…However, it is not to be excluded an atmospheric input, as natural fallout of intermediate radionuclide decay products of U-Th series, primarily sourced by the outcropping lithologies (cf. Ielsch et al, 2001), as uranium and thorium are clearly enriched in the studied samples and especially in the clay coatings (see Sections 3.3 and 3.4). Conversely, an origin by anthropogenic pollution should be excluded, because of the dominantly "wild" natural environment of the site.…”

Section: Discussionmentioning

confidence: 64%

Application of laser ablation ICP-MS and traditional micromorphological techniques to the study of an Alfisol (Sardinia, Italy) in thin sections: Insights into trace element distribution

et al. 2009

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Section: Discussionmentioning

confidence: 64%

Application of laser ablation ICP-MS and traditional micromorphological techniques to the study of an Alfisol (Sardinia, Italy) in thin sections: Insights into trace element distribution

et al. 2009

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“…Sources of further exposure to radiation in the fields are radon inhalation, dust inhalation, ground-water ingestion, and skin beta exposure (Ielsch et al 2001;Pereira et al 2010).…”

mentioning

confidence: 99%

Evaluation of Naturally Occurring Radioactive Materials (NORMs) in Inorganic and Organic Oilfield Scales from the Middle East

Bassioni

Abdulla

Morsy

et al. 2011

Arch Environ Contam Toxicol

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The distribution of natural nuclide gamma-ray activities and their respective annual effective dose rates, produced by potassium-40 (⁴⁰K), uranium-238 (²³⁸U), thorium-232 (²³²Th), and radium-226 (²²⁶Ra), were determined for 14 oilfield scale samples from the Middle East. Accumulated radioactive materials concentrate in tubing and surface equipment, and workers at equipment-cleaning facilities and naturally occurring radioactive materials (NORMs) disposal facilities are the population most at risk for exposure to NORM radiation. Gamma-spectra analysis indicated that photo-gamma lines represent the parents of 10 radioactive nuclides: ²³⁴Th, plutonium-239, actinium-228, ²²⁶Ra, lead-212 (²¹²Pb), ²¹⁴Pb, thallium-238 (²⁰⁸Tl), bismuth-212 (²¹²Bi), ²¹⁴Bi, and ⁴⁰K. These nuclides represent the daughters of the natural radioactive series ²³⁸U and ²³²Th with ⁴⁰K as well. The mean activity concentration of ²³⁸U, ²³²Th, and ⁴⁰K were found to be 25.8 ± 11.6, 18.3 ± 8.1, and 4487.2 ± 2.5% Bq kg⁻¹ (average values for 14 samples), respectively. The annual effective dose rates and the absorbed doses in air, both indoor and outdoor, for the samples were obtained as well. The results can be used to assess the respective hazard on workers in the field and represent a basis for revisiting current engineering practices.

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“…Moreover, the first results of quantification of the radon flux at the surface of the ground, starting from the chemical and physical characteristics of basements and of the ground, are in agreement with the experimental data. Within the time span allowed, it should be possible to establish a classification of various soils according to their potential for radon exhalation, as well as regional charts showing potential radon exhalation; in particular, this should be done for the 'départements' considered more 'at risk' according to the geological and pedagogical data available [9,10]. In parallel to this, bearing in mind the poor appreciation and understanding of the population with regard to the risk from radon, a particular effort to inform the public about radon measurements and the means of reducing radon in the environment [11,12] will have to be carried out in the zones thus determined.…”

Section: Discussionmentioning

confidence: 99%

Radon in Buildings: A Report on the Situation in France

Robé

Brenot

Gambard

et al. 2001

Indoor Built Environ

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Radon is a radioactive gas of natural origin that tends to accumulate in buildings. Although the levels recorded can be reduced, this requires the co-operation of residents, and the French population has a very poor understanding of radon-induced risk. The justification for keeping a close watch on indoor radon concentrations is the underlying risk of lung cancer as a consequence of exposure to high levels. Two official statements dealing with radon risk management were issued in 1999 in France to define the thresholds that should not be exceeded. The results of measurement campaigns, the number of buildings where concentrations above these thresholds are likely to occur, the identification of high-radon potential areas and the actions taken locally together with the way that the risk from radon and remedial actions are perceived are reviewed herein.

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Radon () level variations on a regional scale: influence of the basement trace element (U, Th) geochemistry on radon exhalation rates

Cited by 55 publications

References 16 publications

Application of laser ablation ICP-MS and traditional micromorphological techniques to the study of an Alfisol (Sardinia, Italy) in thin sections: Insights into trace element distribution

Application of laser ablation ICP-MS and traditional micromorphological techniques to the study of an Alfisol (Sardinia, Italy) in thin sections: Insights into trace element distribution

Evaluation of Naturally Occurring Radioactive Materials (NORMs) in Inorganic and Organic Oilfield Scales from the Middle East

Radon in Buildings: A Report on the Situation in France

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