Biomonitoring of Potentially Toxic Elements in Dyed Hairs and Its Correlation with Variables of Interest

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Título

Biomonitoring of Potentially Toxic Elements in Dyed Hairs and Its Correlation with Variables of Interest

Tema

BIOMARCADORES
CABELLO
TINTES
ABSORCION ATOMICA ELECTROTERMICA
ELEMENTOS POTENCIALMENTE TOXICOS
BIBLIOGRAFIA NACIONAL QUIMICA
2023

Abstract

Hair is good bioindicator of exposure, due to its ability to store and retain trace elements for long periods of time. But it can be especially useful when hair dyes are used since they may contain potentially toxic salts in their composition. In this context, analytical methods for the determination of bismuth, cadmium, lead, and silver in scalp human hair by electrothermal atomic absorption spectrometry were successfully validated. A total of 60 samples obtained from women between 18 and 60 years were analyzed: 34 dyed hairs and 26 untreated hairs (control). Average results expressed in dry weight (dyed/ control) for each element were 2.34/0.49 μg g− 1 (silver), 0.142/0.139 μg g− 1 (bismuth), 0.055/0.054 μg g− 1 (cadmium), and 2.09/0.99 μg g− 1 (lead), respectively. These results agreed with those previously reported for non-exposed populations. A statistically significant higher Ag concentration in dyed hairs was observed, suggesting the bioaccumulation of this element. The associations between metal concentration and variables of interest (age, education, smoking habit, dye brand, use of dietary supplements) were investigated. A strong Pearson correlation was found for the pair Ag/Pb (r = 0.494, p < 0.05). Also, strong associations between lead levels and all the selected variables were observed (p < 0.05), while strong associations between silver levels with age and dye brand and association between cadmium levels and smoking habit were found. Furthermore, several commercial hair dye brands were analyzed to verify compliance with cosmetic regulations. This constitutes the first study of such characteristics performed in Uruguay, with worldwide relevance.

Autor

Galizi, Alejandra
Falchi, Lucía
Iaquinta, Fiorella
Machado, Ignacio

Fuente

Biological Trace Element Research, 2023. --

Editor

Springer

Fecha

2023

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PDF
Fecha de agregación
January 31, 2024
Colección
Bibliografía Nacional Química
Tipo de Elemento
Document
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Citación
Galizi, Alejandra, “Biomonitoring of Potentially Toxic Elements in Dyed Hairs and Its Correlation with Variables of Interest,” RIQUIM - Repositorio Institucional de la Facultad de Química - UdelaR, accessed June 24, 2024, https://riquim.fq.edu.uy/items/show/6751.
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