URANIUM, THORIUM AND RARE EARTH ELEMENTS DISTRIBUTION IN FUKUSHIMA SOIL SAMPLES

2019 ◽  
Vol 184 (3-4) ◽  
pp. 363-367 ◽  
Author(s):  
S Kasar ◽  
S K Sahoo ◽  
H Arae ◽  
S Mishra ◽  
S Tokonami ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Inductively Coupled Plasma ◽  
Nuclear Power ◽  
Soil Formation ◽  
Soil Samples ◽  
Granitic Rocks ◽  
High Concentration ◽  
Inductively Coupled ◽  
Fdnpp Accident

Abstract Uranium, thorium and rare earth elements (REEs) in soil samples contaminated by Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident was determined using inductively coupled plasma-mass spectrometry (ICP-MS). This information provides knowledge about concentration levels of REEs in soil samples as a background data after FDNPP accident. Chondrite-normalised REEs pattern does not show enrichment in concentrations of REEs, which could be related to FDNPP accident. The high concentration of these elements at few sampling points may be due to soil formation process from granitic rocks.

scholarly journals Rare Earth Elements Accumulation in the Hair of Malagasy Children and Adolescents in Relation to Their Age and Nutritional Status

2022 ◽  
Vol 19 (1) ◽  
pp. 455
Author(s):  
Magdalena Zielińska-Dawidziak ◽  
Magdalena Czlapka-Matyasik ◽  
Zofia Wojciechowska ◽  
Jędrzej Proch ◽  
Ryszard Kowalski ◽  
...  
Keyword(s):  
Rare Earth ◽  
Nutritional Status ◽  
Rare Earth Elements ◽  
Inductively Coupled Plasma ◽  
Scalp Hair ◽  
Optical Emission ◽  
Mean Value ◽  
Soil Samples ◽  
Inductively Coupled ◽  
The Mean

Due to undesired influence, the accumulation of rare earth elements (REE) in the human body has been discussed recently. However, it is usually limited to the study of the population living where REE ores and mines are located. The aim of the experiment presented was to analyse the concentration of REE in the hair of children and teenagers living in two areas of Madagascar in relation to the place of residence, nutritional status, age and sex. REE concentration was determined in scalp hair of 262 of subjects (5–19 years old) by an inductively coupled plasma-optical emission spectrometer. The content of total REE in the Malagasy hair was in the range of 0.79–44.15 mg/kg. The nutritional status was evaluated by Cole’s index, and malnutrition of children was observed more often in village areas. The concentration of these elements was also determined in 20 samples for the estimation of environmental exposure. No significant differences were detected in the content of these elements in the studied regions, although the mean value was always higher in soil samples from the Antananariva region. The obtained data suggest dependence between REE concentration in the hair and age, and nutritional status of the examined subjects. Even if the observed correlations are weak, they contribute significant knowledge on the accumulation of REE in the bodies of children living in areas that are not recognised as deposits of these elements.

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