Monitoramento de desreguladores endócrinos no rio Arroio Fundo na bacia de Jacarepaguá, RJ.

Abstract

Endocrine disrupters are compounds micropollutants of deleterious effects that cause effects to animals and humans has brought these problems to several decades related to poor training or infertility of various species. The presence of these compounds in the ng L-1 order is already capable of generating negative effects on the endocrine system. This work aimed at determining the presence and amount of some of these compounds as 17α-ethinylestradiol, bisphenol A and estrone among others, in the waters of the river Arroio Fundo, located in Jacarepaguá in Rio de Janeiro that has a bad water quality index. The first stage of this work was the implementation and validation of a method for determination of 17α-ethinylestradiol by liquid chromatography-fluorescence detection which were established limit of detection, quantification and linearity as directed by Inmetro (2010). Besides the evaluation of the samples through the established methodology. In subsequent step were carried out experiments on the determination of endocrine disruptors by tandem quadrupole mass spectrometry detector, were being performed validation procedures and determination of the compounds bisphenol A and estrone, which were not susceptible to matrix effect during ionization, which prevented the determination of other endocrine disrupters. The results indicate that there is no reduction of the presence of detected endocrine disruptors and other organic compounds, also detected but not identified, between the points upstream and downstream of Arroio Fundo treatment plant. However due to the large matrix effect originating from the fact that the sample be extremely complex, could not perform an identification and quantification of all target compounds.