Human exposure to thallium through tap water: A study from Valdicastello Carducci and Pietrasanta (northern Tuscany, Italy)

The Science of the Total Environment
Beatrice CampanellaEmilia Bramanti

Abstract

A geological study evidenced the presence of thallium (Tl) at concentrations of concern in groundwaters near Valdicastello Carducci (Tuscany, Italy). The source of contamination has been identified in the Tl-bearing pyrite ores occurring in the abandoned mining sites of the area. The strongly acidic internal waters flowing in the mining tunnels can reach exceptional Tl concentrations, up to 9000μg/L. In September 2014 Tl contamination was also found in the tap water distributed in the same area (from 2 to 10μg/L). On October 3, 2014 the local authorities imposed a Do Not Drink order to the population. Here we report the results of the exposure study carried out from October 2014 to October 2015, and aimed at quantifying Tl levels in 150 urine and 318 hair samples from the population of Valdicastello Carducci and Pietrasanta. Thallium was quantified by inductively coupled plasma - mass spectrometry (ICP-MS). Urine and hair were chosen as model matrices indicative of different time periods of exposure (short-term and long-term, respectively). Thallium values found in biological samples were correlated with Tl concentrations found in tap water in the living area of each citizen, and with his/her habits. Thallium concentration rang...Continue Reading

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Citations

Nov 22, 2017·PloS One·Laura ColombaioniEmilia Bramanti
Dec 1, 2019·International Journal of Environmental Research and Public Health·Beatrice CampanellaEmilia Bramanti
Nov 28, 2018·Environmental Science and Pollution Research International·Vibor RojePetar Šutalo
Jan 12, 2020·Environmental Science and Pollution Research International·Atta RasoolWajid Nasim
Jan 26, 2021·Environmental Toxicology and Chemistry·Clara CoscollàVicent Yusà
Oct 22, 2017·Analytica Chimica Acta·D PozebonV L Dressler
Oct 17, 2017·Environmental Pollution·Yangqian JiangYuanyuan Li
May 1, 2021·International Journal of Environmental Research and Public Health·Daniela NuvoloneIda Aragona
Jul 6, 2021·Chemical Communications : Chem Comm·Qi DingHua Kuang
Dec 30, 2017·Environmental Science & Technology·Silvan WickAndreas Voegelin

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