scholarly journals The potential of trace elements mapping in child’s natal tooth by laser ablation-ICPMS method

2021 ◽  
Author(s):  
Aneta Olszewska ◽  
Anetta Hanć
Keyword(s):  
Trace Elements ◽  
Spatial Distribution ◽  
Quantitative Assessment ◽  
Toxic Elements ◽  
Tooth Enamel ◽  
Perinatal Period ◽  
Potentially Toxic Elements ◽  
Metal Exposure ◽  
Icp Ms ◽  
Distribution Of Trace Elements

Abstract Purpose Tooth enamel might provide past chronological metabolic, nutritional status and trace metal exposure during development. Thus, the trace elements distribution embedded in tooth tissues represents an archive of the environmental conditions. The choice of biomarker is estimated as critical to the measurement of metal exposure. Natal teeth are defined as teeth being present at birth. Methods LA-ICP-MS provides a quantitative assessment of spatial distribution of trace elements in a natal tooth. The objective of the current study was to compare concentrations of building and other elements in a rare but reliable and valid biomarker - natal tooth. Results It have been reported presence of potentially toxic elements: Pb, Cu, Mn, Cd, Ni distributed in prenatally and perinatally formed enamel and dentine. Conclusions Analyses of deciduous enamel can provide answers into individuals’ earliest development, including critical pre- and perinatal period.

The chemistry of Norwegian groundwaters: III. The distribution of trace elements in 476 crystalline bedrock groundwaters, as analysed by ICP-MS techniques

2000 ◽  
Vol 246 (1) ◽  
pp. 21-40 ◽  
Author(s):  
Bjørn Frengstad ◽  
Aase Kjersti Midtgård Skrede ◽  
David Banks ◽  
Jan Reidar Krog ◽  
Ulrich Siewers
Keyword(s):  
Trace Elements ◽  
Crystalline Bedrock ◽  
Icp Ms ◽  
Distribution Of Trace Elements

scholarly journals Spatial Distribution and Health Risk Assessment of Potentially Toxic Elements in Surface Soils of Bosten Lake Basin, Central Asia

2019 ◽  
Vol 16 (19) ◽  
pp. 3741 ◽  
Author(s):  
Long Ma ◽  
Jilili Abuduwaili ◽  
Wen Liu
Keyword(s):  
Organic Matter ◽  
Spatial Distribution ◽  
Linear Model ◽  
Geographically Weighted Regression ◽  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Weighted Regression ◽  
Lake Basin ◽  
Total Organic Matter ◽  
Bosten Lake

A geographically weighted regression and classical linear model were applied to quantitatively reveal the factors influencing the spatial distribution of potentially toxic elements of forty-eight surface soils from Bosten Lake basin in Central Asia. At the basin scale, the spatial distribution of the majority of potentially toxic elements, including: cobalt (Co), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb), thallium (Tl), vanadium (V), and zinc (Zn), had been significantly influenced by the geochemical characteristics of the soil parent material. However, the arsenic (As), cadmium (Cd), antimony (Sb), and mercury (Hg) have been influenced by the total organic matter in soils. Compared with the results of the classical linear model, the geographically weighted regression can significantly increase the level of simulation at the basin spatial scale. The fitting coefficients of the predicted values and the actual measured values significantly increased from the classical linear model (Hg: r2 = 0.31; Sb: r2 = 0.64; Cd: r2 = 0.81; and As: r2 = 0.68) to the geographically weighted regression (Hg: r2 = 0.56; Sb: r2 = 0.74; Cd: r2 = 0.89; and As: r2 = 0.85). Based on the results of the geographically weighted regression, the average values of the total organic matter for As (28.7%), Cd (39.2%), Hg (46.5%), and Sb (26.6%) were higher than those for the other potentially toxic elements: Cr (0.1%), Co (4.0%), Ni (5.3%), V (0.7%), Cu (18.0%), Pb (7.8%), Tl (14.4%), and Zn (21.4%). There were no significant non-carcinogenic risks to human health, however, the results suggested that the spatial distribution of potentially toxic elements had significant differences.

scholarly journals Influence of the Indicators of Carbohydrate Metabolism on the Elemental Status

2021 ◽  
Author(s):  
Olga Marshinskaia ◽  
Tatiana Kazakova ◽  
Svetlana Notova ◽  
Maksim Molchanov
Keyword(s):  
Diabetes Mellitus ◽  
Trace Elements ◽  
Toxic Elements ◽  
Normal Values ◽  
Chemical Elements ◽  
Serum Parameters ◽  
Glucose Levels ◽  
Icp Ms ◽  
Elemental Status ◽  
Elevated Glucose

This study examined the elemental status of the hair and blood biochemistry of young men in the Orenburg region (n=38) with different glucose levels. Estimation of the element status was carried out through the study of the chemical composition of the hair by ICP-AES and ICP-MS. It was found that the studied serum parameters (Ca, Mg, Fe, P cholesterol, thyroxine, TSH and testosterone) were within normal values, and no statistically significant differences were obtained when comparing the groups. The concentration of chemical elements in the hair of the men in each group was in the range of physiologically acceptable values for this region. In the group with elevated glucose levels, there was a tendency for the men to have lower values of Ca and Mg, and higher levels of K, Na, P and a number of toxic elements (Al, Cd, Sn, Hg, Pb). Keywords: elemental status, trace elements, diabetes mellitus, metabolism

scholarly journals Spatial distribution of trace elements in surface sediments of Hooghly (Ganges) river estuary in West Bengal, India

2021 ◽  
Author(s):  
Marco Trifuoggi ◽  
Luciano Ferrara ◽  
Maria Toscanesi ◽  
Priyanka Mondal ◽  
Jonathan Muthuswamy Ponniah ◽  
...  
Keyword(s):  
Trace Elements ◽  
Spatial Distribution ◽  
Surface Sediments ◽  
River Estuary ◽  
Pollution Index ◽  
Enrichment Factors ◽  
Ganges River ◽  
Contamination Index ◽  
Post Monsoon ◽  
Distribution Of Trace Elements

AbstractThe spatial distribution of trace elements in surface sediments of the Hooghly estuary was studied over the monsoons in 2014–2017. As, Cd, Ni, Pb and U were two- to sixteen-fold the crust means with increasing levels toward the estuary, with Ni peak during the post-monsoon. Pearson’s correlation matrix, cluster analysis, enrichment factors and pollution index revealed the anthropic source and association of trace elements with Fe, Mn and Al and of Pb with U. Geoaccumulation index revealed for Ni an extremely contaminated situation at the estuary water during monsoon and for Cd a heavily contaminated situation at freshwater location. The potential contamination index was >6; thus, sediments were very severely contaminated by As, Cd and Ni with worst situation for As and Cd at fresh and brackish water and during post-monsoon. The overall ecological risk was severe, 300≤RI<600 at all sites and seasons, especially after the monsoon, at fluvial and brackish locations.

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