Monitoring endocrine disrupting compounds and estrogenic activity in tap water from Central Spain
2014
Esteban, S. | Gorga, M. | González-Alonso, S. | Petrovic, M. | Barceló, D. | Valcárcel, Y.
The aims of this study are to investigate the presence of 30 substances known or thought to act as endocrine disrupting compounds in tap water from the main water supply areas for region of Madrid, to determine the total estrogenic activity of the samples analysed and to estimate the health risk for the population resulting from those compounds found at detectable concentrations. To this end, a one-off composite sampling was performed in August 2012 in which six tap water samples were collected from private residences in the drinking water supply network of the region of Madrid. A total of 14 of the 30 endocrine disruptors analysed were found at concentrations ranging from 0.3 to 165 ng/L. The organophosphorus flame retardants were detected at the highest concentrations followed by the plasticizer bisphenol A, alkylphenols, anticorrosion agents and preservatives. Tap water in the region of Madrid is contaminated with traces (ng/L) of compounds with endocrine disrupting properties. Although the concentrations of endocrine disrupting compounds obtained are too low to be able to confirm a public health risk, and no risk has been detected upon evaluation, it should be remembered that these compounds act at very low doses and that their effects may only appear in the long term.
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