Eco- and Genotoxicological Assessments of Two Reactive Textile Dyes

Autor(es)

Leme, Daniela Morais ^{[1, 2]} ; Rodrigues de Oliveira, Gisele Augusto ^{[3, 2]} ; Meireles, Gabriela ^[2] ; Brito, Lara Barroso ^[3] ; Rodrigues, Lais de Brito ^[3] ; de Oliveira, Danielle Palma ^[2]

Afiliação do(s) autor(es)

^[1] Fed Univ Parana UFPR, Dept Cell Biol, Curitiba, PR - Brazil

^[2] Univ Sao Paulo, Fac Pharmaceut Sci Ribeirao Preto FCFRP, BR-14049 Ribeirao Preto, SP - Brazil

^[3] Fed Univ Goias UFG, Fac Pharm FF, Goiania, Go - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH-PART A-CURRENT ISSUES; v. 78, n. 5, p. 287-300, MAR 4 2015.
• Citações Web of Science: 19

Resumo

Contamination of natural waters has been one of the major problems of modern society and the textile industry is rated as an important polluting source, due to the generation of large amounts of wastewaters. The aim of this study was to assess textile dyes Reactive Blue 19 (RB19, anthraquinone dye) and Reactive Red 120 (RR120, azo dye) in terms of the potential to induce adverse effects on aquatic organisms and humans. Thus, these dyes were tested using the following assays: Microtox assay (Vibrio fischeri); brine shrimp (Artemia salina); Daphnia similis; and Comet with normal human dermal fibroblasts as well as Ames test (TA98, TA100, YG1041, YG1042-with and without S9). RB19 was relatively nontoxic to all aquatic bioindicators analyzed with an EC50 of more than 100 mg/L, whereas RR120 was only moderately toxic to A. salina with a EC50-48h of 81.89 mg/L. Mutagenicity through base pair substitution was observed with RB19 in the presence of S9 (Ames-positive). The comet assay did not demonstrate any apparent genotoxic effects for any tested dye. Although mutagenicity was detected with RB19, the mutagenic effect observed may be considered weak compared to the ability to induce DNA damage by other classes of dyes such as disperse dyes. Therefore, these dyes may be classified as nonmutagens (RR120) or weak mutagens (RB19) and relatively nontoxic for aquatic organisms. However, it is noteworthy that the weak acute toxicity to A. salina induced by RR120 is sufficient to suggest potential damage to the aquatic ecosystem and emphasizes the need for biomonitoring dye levels in wastewater systems. (AU)

• Processo FAPESP: 10/14941-3 - Avaliação de efeitos genotóxicos e mutagênicos decorrentes da exposição de corante reativo extraído de fibras de algodão por meio de suor sintético
• Beneficiário: Daniela Morais Leme
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado