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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Occurrence and potential risk of triclosan in freshwaters of Sao Paulo, Brazil-the need for regulatory actions

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Montagner, Cassiana C. [1] ; Jardim, Wilson F. [2] ; Von der Ohe, Peter C. [3] ; Umbuzeiro, Gisela A. [1]
Total Authors: 4
[1] Univ Estadual Campinas, Fac Technol, Limeira, SP - Brazil
[2] Univ Estadual Campinas, Inst Chem, Environm Chem Lab, Campinas, SP - Brazil
[3] UFZ Helmholtz Ctr Environm Res, Dept Effect Directed Anal, Leipzig - Germany
Total Affiliations: 3
Document type: Journal article
Source: Environmental Science and Pollution Research; v. 21, n. 3, p. 1850-1858, FEB 2014.
Web of Science Citations: 30

Triclosan (TCS) is a broad-spectrum bactericide, highly toxic to algae, which is released into the environment via wastewater effluents. Predicted no-effect concentrations (PNECs) for aquatic biota have been proposed in the literature, varying from 1.4 to 1,550 ng/L, reflecting contradicting protection goals. In this work, six rivers in the state of So Paulo were monitored for TCS and caffeine, a tracer for untreated sewage disposal, over a period of more than 1 year. From 71 samples analyzed, 32 contained TCS at concentrations above the limit of quantification, ranging from 2.2 to 66 ng/L, corresponding to a frequency of exceedance of the lowest PNEC of 86 % (six out of seven sites). No correlation between TCS and caffeine was observed, and one of the reasons for that could be the different use patterns in the local populations. Given the high values found in the investigated rivers, TCS seems to be a strong candidate in the priority list of compounds that should be regulated in Brazil to preserve the aquatic environment. (AU)

FAPESP's process: 12/00303-0 - Occurrence of priority pesticides in water natural - basis for the assurance of multiple uses and public policies
Grantee:Cassiana Carolina Montagner Raimundo
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 08/57808-1 - National Institute of Advanced Analytical Science and Technology
Grantee:Celio Pasquini
Support type: Research Projects - Thematic Grants