R-mode factor analysis applied to the distribution of radionuclides in Turkey

Bakaç, Mustafa

doi:10.1016/j.radphyschem.2004.04.089

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…6 Cluster analysis of the different core samples relatively small number of factors that can be used to represent relationships among groups of many interrelated discrete variables. Statistical routine was performed following the criteria and methodological procedures previously detailed on Bakac 2004 andHopke 1992. The methodological steps were: (a) standardization of data, (b) computation of a correlation matrix, (c) extraction of principal factors matrix, (d) rotation (Varimax) of the factor matrix.…”

Section: Discussionmentioning

confidence: 99%

Lead, Zinc, Arsenic and Copper Pollution in the Alluvial Plain of a Mining Wadi: The Beal Case (Cartagena–La Union Mining District, SE Spain)

González-Fernández

Queralt

Carvalho

et al. 2011

Water Air Soil Pollut

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The distribution and mobility of heavy metals in the non-saturated zone of the alluvial plain of a wadi in the Cartagena-La Union mining district was investigated. The elemental chemistry of soils, indepth sediments and different plant species (namely Hirsfeldia incana, Ditrichia viscosa and Piptatherum miliaceum) was carried out by using X-ray fluorescence and X-ray diffraction techniques. Potential mobility of metals was assessed by using lixiviation test runs (DIN 38414-S4). Concentrations detected in soils and sediments were higher than the acceptable limits reported in official regulations. Regarding metals mobility, values obtained for Pb, Zn and As exceed the limits established by European Union for DIN 38414-S4 leachates. Whilst the obtained leaching percentages for Pb, Cu and As were not especially high (<2%), Zn exhibit a very high leaching potential (up to 60% of the total metal content), involving potential risk of pollution events.

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Section: Discussionmentioning

confidence: 99%

Lead, Zinc, Arsenic and Copper Pollution in the Alluvial Plain of a Mining Wadi: The Beal Case (Cartagena–La Union Mining District, SE Spain)

González-Fernández

Queralt

Carvalho

et al. 2011

Water Air Soil Pollut

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“…It was performed following the considerations and methodological procedures previously detailed in the literature. 35,36 The methodology involved was: (1) standardization of data, (2) computation of a correlation matrix, (3) extraction of principal factors matrix, and (4) rotation of the factor matrix by the Varimax rotation. Only factors with eigenvalues greater than 1 were considered in order to simplify the system.…”

Section: Methodsmentioning

confidence: 99%

Fast Elemental Screening of Soil and Sediment Profiles Using Small-Spot Energy-Dispersive X-Ray Fluorescence: Application to Mining Sediments Geochemistry

González-Fernández

Queralt

2010

Appl Spectrosc

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Elemental analysis of different sediment cores originating from the Cartagena-La Union mining district in Spain was carried out by means of a programmable small-spot energy-dispersive X-ray fluorescence (EDXRF) spectrometer to study the distribution of heavy metals along soil profiles. Cores were obtained from upstream sediments of a mining creek, from the lowland sedimentation plain, and from a mining landfill dump (tailings pile). A programmable two-dimensional (2D) stage and a focal spot resolution of 600 μm allow us to obtain complete core mapping. Geochemical results were verified using a more powerful wavelength-dispersion X-ray fluorescence (WDXRF) technique. The data obtained was processed in order to study the statistical correlations within the elemental compositions. The results obtained allow us to observe the differential in-depth distribution of heavy metals among the sampled zones. Dump site cores exhibit a homogeneous distribution of heavy metals, whereas the alluvial plain core shows accumulation of heavy metals in the upper part. This approach can be useful for the fast screening of heavy metals in depositional environments around mining sites.

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R-mode factor analysis applied to the distribution of radionuclides in Turkey

Cited by 2 publications

References 4 publications

Lead, Zinc, Arsenic and Copper Pollution in the Alluvial Plain of a Mining Wadi: The Beal Case (Cartagena–La Union Mining District, SE Spain)

Lead, Zinc, Arsenic and Copper Pollution in the Alluvial Plain of a Mining Wadi: The Beal Case (Cartagena–La Union Mining District, SE Spain)

Fast Elemental Screening of Soil and Sediment Profiles Using Small-Spot Energy-Dispersive X-Ray Fluorescence: Application to Mining Sediments Geochemistry

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