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New benzotriazoles generated during textile dyeing process: Synthesis, hazard, water occurrence and aquatic risk assessment.
Vendemiatti, Josiane A Souza; Camparotto, Natália G; Vidal, Cristiane; Cristale, Joyce; Agapito, Estevão Vieira de Moraes; Oliveira, Ádria Calotto; Rodrigues, Everton A; Montagner, Cassiana C; Umbuzeiro, Gisela A; Prediger, Patrícia.
Afiliação
  • Vendemiatti JAS; School of Technology, University of Campinas, Limeira, SP, Brazil.
  • Camparotto NG; School of Technology, University of Campinas, Limeira, SP, Brazil.
  • Vidal C; Institute of Chemistry, University of Campinas, Campinas, SP, Brazil.
  • Cristale J; School of Technology, University of Campinas, Limeira, SP, Brazil.
  • Agapito EVM; School of Technology, University of Campinas, Limeira, SP, Brazil.
  • Oliveira ÁC; School of Technology, University of Campinas, Limeira, SP, Brazil.
  • Rodrigues EA; School of Technology, University of Campinas, Limeira, SP, Brazil.
  • Montagner CC; Institute of Chemistry, University of Campinas, Campinas, SP, Brazil.
  • Umbuzeiro GA; School of Technology, University of Campinas, Limeira, SP, Brazil; Wilson College of Textiles, North Carolina State University, Raleigh, NC, USA; Biology Institute, UNICAMP, Campinas, SP, Brazil.
  • Prediger P; School of Technology, University of Campinas, Limeira, SP, Brazil. Electronic address: prediger@unicamp.br.
J Hazard Mater ; 403: 123732, 2021 02 05.
Article em En | MEDLINE | ID: mdl-32846262
Phenylbenzotriazoles (PBTA) can be generated unintentionally during textile dyeing factories by reduction of dinitrophenylazo dyes and their subsequent chlorination in disinfection process. Eight non-chlorinated PBTAs (non-Cl PBTA) and their related chlorinated PBTAs have been found in rivers and presented mutagenic activity. No data on their aquatic toxicity are available. In this work, two new phenylbenzotriazoles, non-Cl PBTA-9 and PBTA-9, derived from the dye C.I. Disperse Violet 93 (DV93) were synthesized and chemically/toxicologically characterized. Both compounds were more mutagenic than the parental dye in the Salmonella/microsome assay in the presence of metabolic activation (S9). Mutagenicity studies in vivo with mammals would confirm their potential hazard to humans. The two compounds were acutely toxic to Daphnia similis. We developed an analytical method to simultaneously quantify non-Cl PBTA-9, PBTA-9 and DV93 in river waters. Non-Cl PBTA-9 was found in sites under influence of textile effluents but at concentrations that do not pose risk to the aquatic life according to the P-PNEC calculated based on the acute toxicity tests. PBTA-9 was not detected in any samples analyzed. More studies on the aquatic toxicity and water occurrence of PBTAs should be conducted to verify the relevance of this class of compounds as aquatic contaminants.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Água Tipo de estudo: Etiology_studies / Risk_factors_studies Limite: Animals / Humans Idioma: En Revista: J Hazard Mater Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda
Texto completo
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XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Água Tipo de estudo: Etiology_studies / Risk_factors_studies Limite: Animals / Humans Idioma: En Revista: J Hazard Mater Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda