نبذة مختصرة : [EN] The concern about the increasing number of toxic compounds found in the environment is increasing. Among these compounds are pharmaceuticals, drugs of abuse, personal care products, steroids and hormones, surfactants and perfluorinated compounds, among others. These compounds are incorporated into the environment by industrial and agricultural activity and municipal waste disposal. One of the main sources of contaminants are emerging effluents of wastewater treatment plants, because in many cases there isn’t achieved a complete elimination thereof. That is why, today, new technologies are being developed to achieve complete elimination of these substances. In this research, artificially contaminated waters with eight compounds related to the cork industry (gallic acid, ellagic acid, protocatechuic acid, vanillic acid, sinapic acid, siringic acid, tannic acid and 2,4-dinitrofenol) and subjected to advanced oxidation processes (photo-Fenton) for different times, have been evaluated from the ecotoxicological point of view by testing RYA (Recombinant Yeast Assay) that evaluates estrogenic activity in the wastewater. This assay is based on a recombinant strain of the yeast Saccharomyces cerevisiae. The estrogenic potential of the samples were detected by fluorescence emission after treatment. Ecotoxicological evaluation of water samples contaminated by assay RYA demonstrates a increased toxicity at 20 min of treatment of the waters, due to the appearance of intermediate compounds which are more toxic than the original pollutants, so it is necessary to extend the treatment time in the advanced oxidation processes, in order to reduce the toxicity of contaminated waters. ; [ES] La preocupación por el creciente número de compuestos tóxicos detectados en el medio ambiente va en aumento. Entre éstos se encuentran productos farmacéuticos, drogas de abuso, productos de cuidado personal, esteroides y hormonas, agentes tensioactivos y compuestos perfluorados, entre otros. Estos compuestos son incorporados al medio ...
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