Gabriela Cristina Fonseca Almeida1and Gisela de A. Umbuzeiro1
1. School of Technology, University of Campinas, Limeira, SP, Brazil.
The discharge of domestic, municipal and industrial effluents is usually the main source of aquatic toxicity observed in surface waters. One way to evaluate the quality of those effluents is to evaluate them using aquatic species. The objective of this work was to compare the acute toxicity of effluents from four Wastewater Treatment Plants (WWTPs) with different levels of treatment.