The occurrence of the endocrine disruptor compounds, such as 4-nonylphenol isomers and bisphenol A was determined in surface water samples from Portugal. The analytical method used involved the preconcentration of 200 mL of water sample by solid phase extraction (SPE) using a OASIS (Waters) cartridge, followed by Gas Chromatography-Mass Spectrometry (GC/MS) determination. Recoveries and limits of detection of 4-nonylphenol isomers and bisphenol-A were 73 % and 119 %, respectively, 0.01 μg L-1 and 0.002 μg L-1. The method was applied to the determination of these estrogenic pollutants in river and coastal waters during three months (August-October/1999). The total samples analyzed were 135. Concentrations of 4-nonylphenol isomers and bisphenol-A ranged from 0.03-30 μg L-1 and 0.07-4.0 μg L-1, respectively. Only in two river samples, concentrations of 4-nonylphenol isomers were above 10 μg L-1 and bisphenol-A were above 2 μg L-1. These values can cause estrogenic effects in fish and these sampling points require further investigation in order to verify the maintenance of these levels.
CITATION STYLE
Azevedo, D. D. A., Lacorte, S., Viana, P., & Barceló, D. (2001). Occurrence of Nonylphenol and Bisphenol-A in Surface Waters from Portugal. Journal of the Brazilian Chemical Society, 12(4), 532–537. https://doi.org/10.1590/S0103-50532001000400015
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