Soil geochemical, mineralogical, radon and gamma ray spectrometric data from the 2007 North American soil geochemical landscapes project in New Brunswick, Nova Scotia and Prince Edward Island

Friske, P W B; Ford, K L; McNeil, R J; Pronk, A. G.; Parkhill, Michael A.; Goodwin, Terry A.

doi:10.4095/290237

Cited by 5 publications

(8 citation statements)

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“…In order to validate the proposed methodology, we use the database of the Canadian component of the North American Soil Geochemical Landscapes Project (NASGLP) carried out in 2004 (Friske et al, 2014). A significant part of the Canadian component of the NASGLP included the collection of soil texture, soil gas radon, permeability and gammaray spectrometric analysis.…”

Section: Validation Of Methodology Using Extensive Review Of Radon Stmentioning

confidence: 99%

“…Water content, θwg, was determined gravimetrically as the weight of water in a given mass of soil to the weight of the dried sample expressed as a percentage. The volumetric water content was calculated as θwg•ρb/ρw, where ρw is the density of liquid water (for a detailed description of the field and lab measurements, see Friske et al, 2014).…”

Section: Validation Of Methodology Using Extensive Review Of Radon Stmentioning

confidence: 99%

“…The proposed methodology is compared with the database of the Canadian component of NASGLP (Friske et al, 2014). The selected values from the data set are mainly classified as sandy loam to silty loam categories (the lower part of the soil texture triangle), with no data points in the clayey-dominated classes.…”

Section: Validation Studymentioning

confidence: 99%

“…Calculated unsaturated gas, pKg(Sw), and field gas, pKg field, permeabilities from the database of the Canadian component of NASGLP(Friske et al, 2014).…”

mentioning

confidence: 99%

“…(a) Calculated gas permeability for different soil textures and water content (Sw=0, 0.1, 0.2 and 0.4) for three values of radon gas concentration. (b) Comparison of the calculated intrinsic and unsaturated gas permeability with field radon gas concentration and permeability from the database of the Canadian component of NASGLP(Friske et al, 2014). HIGHLIGHTS-Radon risk classification depends on the soil water content during the measurement -Rosetta PTF estimate soil gas permeability from soil texture and water content -The proposed methodology provides reliable gas permeability compared to field values…”

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confidence: 99%

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Estimation of soil gas permeability for assessing radon risk using Rosetta pedotransfer function based on soil texture and water content

Benavente

Valdés-Abellán

Pla

et al. 2019

Journal of Environmental Radioactivity

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Radon is a natural source of radioactivity and it can be found in all soils and rocks in the Earth. The presence of radon gas in indoor environments implies a serious risk for human health, already listed as carcinogenic by the World Health Organization. The most relevant methods to infer the risk for radon exposure are based on soil radon concentration and gas permeability that describe the effective radon movement in the soil. However, they neglect crucial soil properties and water content in soil, which can affect greatly soil permeability to gases. Additionally, soil permeability measurement remains expensive, difficult and time-consuming. In this paper we show a new and simple methodology to infer radon risk based on Rosetta3 pedotransfer function as well as soil texture and water content. We also determine the influence of soil texture both on the gas permeability variation in dependence on water content and on the parameter n of the van Genuchten-Mualem model, which establishes the shape of the relative permeability curves. We show that radon risk exposure may change importantly for the same soil with different soil water contents. We finally apply and validate the proposed method using radon permeability data from the Canadian component of the North American Soil Geochemical Landscapes Project (NASGLP). Results highlight that the proposed methodology provides reliable estimations of the gas permeability and reveal that the presence of water content may cross the boundary between two radon risk categories, and consequently, may change the radon risk category to safer situations.

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Section: Validation Of Methodology Using Extensive Review Of Radon Stmentioning

confidence: 99%

Section: Validation Of Methodology Using Extensive Review Of Radon Stmentioning

confidence: 99%

Section: Validation Studymentioning

confidence: 99%

“…Calculated unsaturated gas, pKg(Sw), and field gas, pKg field, permeabilities from the database of the Canadian component of NASGLP(Friske et al, 2014).…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Estimation of soil gas permeability for assessing radon risk using Rosetta pedotransfer function based on soil texture and water content

Benavente

Valdés-Abellán

Pla

et al. 2019

Journal of Environmental Radioactivity

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Natural Distribution and Abundance of Elements

Garrett

2012

Essentials of Medical Geology

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Selenium deficiency risk predicted to increase under future climate change

Jones

Droz

Greve

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

319

165

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SignificanceThe trace element selenium is essential for human health and is required in a narrow dietary concentration range. Insufficient selenium intake has been estimated to affect up to 1 billion people worldwide. Dietary selenium availability is controlled by soil–plant interactions, but the mechanisms governing its broad-scale soil distributions are largely unknown. Using data-mining techniques, we modeled recent (1980–1999) distributions and identified climate–soil interactions as main controlling factors. Furthermore, using moderate climate change projections, we predicted future (2080–2099) soil selenium losses from 58% of modeled areas (mean loss = 8.4%). Predicted losses from croplands were even higher, with 66% of croplands predicted to lose 8.7% selenium. These losses could increase the worldwide prevalence of selenium deficiency.

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Soil geochemical, mineralogical, radon and gamma ray spectrometric data from the 2007 North American soil geochemical landscapes project in New Brunswick, Nova Scotia and Prince Edward Island

Cited by 5 publications

References 0 publications

Estimation of soil gas permeability for assessing radon risk using Rosetta pedotransfer function based on soil texture and water content

Estimation of soil gas permeability for assessing radon risk using Rosetta pedotransfer function based on soil texture and water content

Natural Distribution and Abundance of Elements

Selenium deficiency risk predicted to increase under future climate change

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