Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Quantifying the contribution of dyes to the mutagenicity of waters under the influence of textile activities

Full text
Author(s):
Vacchi, Francine Inforcato ; de Souza Vendemiatti, Josiane Aparecida ; da Silva, Bianca Ferreira ; Boldrin Zanoni, Maria Valnice ; Umbuzeiro, Gisela de Aragao
Total Authors: 5
Document type: Journal article
Source: Science of The Total Environment; v. 601, p. 230-236, DEC 1 2017.
Web of Science Citations: 18
Abstract

The combination of chemical analyses and bioassays allows the identification of potentially mutagenic compounds in different types of samples. Dyes can be considered as emergent contaminants and were detected in waters, under the influence of textile activities. The objective of this study was to evaluate the contribution of 9 azo dyes to the mutagenicity of representative environmental samples. Samples were collected along one year in the largest conglomerate of textile industries of Brazil. We analyzed water samples from an important water body, Piracicaba River, upstreamand downstreamtwo main discharges, the effluent of a wastewater treatment plant (WWTP) and the tributary Quilombo River, which receives untreated effluent from local industries. Samples were analyzed using a LC-MS/MS and tested for mutagenicity in the Salmonella/microsome microsuspension assay with TA98 and YG1041. Six dyes were detected in the collected samples, Disperse Blue 291, Disperse Blue 373, Disperse Orange 30, Disperse Red 1, Disperse Violet 93, and Disperse Yellow 3. The most sensitive condition for the detection of the mutagenicity was the strain YG1041 with S9. The concentration of dyes and mutagenicity levels varied along time and the dry season represented the worst condition. Disperse Blue 373 and Disperse Violet 93were the major contributors to the mutagenicity. Weconclude that dyes are contributing for the mutagenicity of Piracicaba River water; and both discharges, WWTP effluent and Quilombo River, increase themutagenicity of Piracicaba Riverwaters in about 10-fold. The combination of chemical analysis and bioassays were key in the identification the main drivers of the water mutagenicity and allows the selection of priority compounds to be included inmonitoring programs aswell for the enforcing actions required to protect the water quality for multiple uses. (C 2017 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 08/10449-7 - Assessment of occurrence, toxicity/genotoxicity and degradation processes of dyes in effluents and surface water
Grantee:Maria Valnice Boldrin
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 12/13344-7 - Occurrence, genotoxicity and ecotoxicological risk of dyes in the aquatic environment.
Grantee:Francine Inforçato Vacchi
Support Opportunities: Scholarships in Brazil - Doctorate