VANESSA SILVA GRANADEIRO GARCIA
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Artigo IPEN-doc 29329 Toxicidade aguda e avaliação de riscos ecológicos de fármacos pertencentes a diferentes classes detectados em ambientes aquáticos2021 - TOMINAGA, F.K.; BOIANI, N.F.; GARCIA, V.S.G.; SILVA, T.T.; LEO, P.; BORRELY, S.I.Artigo IPEN-doc 29328 Avaliação da toxicidade da mistura de fármacos submetidos a irradiação por feixe de elétrons2021 - BOIANI, N.F.; SILVA, T.T.; TOMINAGA, F.K.; GARCIA, V.S.G.; BORRELY, S.I.Resumo IPEN-doc 28652 Avaliação da toxicidade de surfactantes não iônico e aniônico submetidos a tratamento por feixe de elétrons2021 - GARCIA, VANESSA S.G.; TOMINAGA, FLAVIO K.; BOIANI, NATHALIA F.; SILVA, THALITA T.; ROSA, JORGE M.; BORRELY, SUELI I.Artigo IPEN-doc 27915 Electron beam irradiation of combined pharmaceuticals2021 - BOIANI, NATHALIA F.; GARCIA, VANESSA S.G.; BORRELY, SUELI I.There are serious evidences that justify the search for treatment technologies or processes combination for the improvement of decomposition for dozens of pharmaceuticals in wastewaters. Electron beam irradiation may play an important role in this scenario and relatively low doses have been reported for such purposes. The aim of the present study was to evaluate the toxic response of the crustacean Daphnia similis exposed to individual and combined pharmaceuticals, before and after electron beam irradiation treatment. Several experimental trials of an acute immobilization test were performed with a mixture of pharmaceuticals composed of fluoxetine hydrochloride (Prozac®), and propranolol. Single pharmaceuticals were first tested separately. Toxicity of binary mixture was then assessed using five concentrations and five percentages of each substance in the mixture (0, 25, 50, 75, and 100%). Acute EC50% values ranged from 5.0 to 7.4 for fluoxetine and from 11.3 to 13.7 for propranolol. In mixture, values ranged from 6.4 to 9.8. Fluoxetine was more toxic than propranolol for D.similis. The different pharmaceuticals concentrations employed in a mixture showed no difference in toxicity values. When electron beam irradiation was applied, approximately 80% of acute effects were reduced at 5 kGy, and the mixture containing a higher percentage of fluoxetine, also showed a greater reduction of toxicity.Artigo IPEN-doc 25766 Electron beam irradiation of textile effluents and non-ionic ethoxylated surfactant for toxicity and color removal2019 - BORRELY, S.I.; SILVA, L.G.A.; DEL SOLE, S.V.; GARCIA, V.S.G.; BOIANI, N.F.; ROSA, J.M.Textile industry has an expressive scenario in the world economy and Brazil is the 5th in the textile production. By 2015, Brazilian textile production represented US $ 39.3 billion, accounting for more than 1.8 million tons of fabric. The effluents from textile industry are highlighted by quantity of wastewater discharged and variety of substances (dyes, bleaching agents, surfactants, salts, acids, among others). Such compounds often prove to be toxic to aquatic biota. This present study aims to assess toxicity of whole effluents, before and after irradiation (by electron beam accelerator, EBI). In addition, the reduction of the effluent color after irradiation is also very important. Daphnia similis and Vibrio fischeri were the biological systems applied for toxicity evaluations. Previous results demonstrated the surfactant as the main toxic compound, in the untreated and irradiated forms, EC 50 = 0.44 ppm ± 0.02 (untreated); EC 50 = 0.46 % ± 0.07 (irradiated). The irradiation was effective for reducing color of the effluent, starting from 0.5 kGy. EB irradiation may be proposed as an alternative treatment for the final effluent from textile processing, mainly for reuse purposes.Resumo IPEN-doc 25529 Avaliação da toxicidade do umectante não iônico e do corante reativo RED 239 submetidos à irradiação por feixe de elétrons2018 - GARCIA, VANESSA S.G.; ROSA, JORGE M.; PEREIRA, MARIA da C.C.; BOIANI, NATHALIA F.; BORRELY, SUELI I.Resumo IPEN-doc 25526 Toxicidade do Propranolol (comercial versus manipulado), e de sua mistura com o cloridrato de fluoxetina, quando tratado por radiação ionizante2018 - BOIANI, NATHALIA F.; GARCIA, VANESSA S.G.; TOMINAGA, FLAVIO K.; BORRELY, SUELI I.