Pulp and paper mill effluent treatments have differential endocrine-disrupting effects on rainbow trout

Environmental Toxicology and Chemistry
Rodrigo OrregoDouglas Holdway

Abstract

Endocrine disruption (ED) effects due to pulp and paper mill effluents extracts involving different industrial procedures and effluent treatments (nontreated, primary, and secondary treated) were evaluated using immature triploid rainbow trout in a pulse-exposure toxicity experiment. The protocol involved the use of intraperitoneal injection of mill extracts (solid-phase extraction [SPE]) corrected for individual fish weight and included several laboratory standards (steroidal hormones and phytosterols). Biological endpoints at two different levels of biological organization were analyzed (molecular and individual organism). Results indicated that nonsignificant changes were observed in the individual physiological indices represented by condition factor, liver somatic index, and gonad somatic index during the experiment. Significant induction of liver ethoxyresorufin-O-deethylase activity was observed between different effluent treatments and experimental controls. Significant endocrine-disrupting effects at the reproductive level were observed in all effluent treatments involving significant increments in plasma vitellogenin (VTG) levels. Fish exposed to untreated effluent extracts had significantly higher VTG levels compared...Continue Reading

Citations

Sep 18, 2009·Analytical and Bioanalytical Chemistry·Corinne C HoergerThomas D Bucheli
Jul 1, 2010·Archives of Environmental Contamination and Toxicology·Louise M StevensonEthan D Clotfelter
Apr 22, 2014·Water Research·Christy M DykstraSpyros G Pavlostathis
Dec 5, 2009·Bulletin of Environmental Contamination and Toxicology·S ChamorroG Vidal
Oct 8, 2011·Bulletin of Environmental Contamination and Toxicology·D LópezG Vidal
Oct 10, 2012·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Soledad ChamorroGladys Vidal
Apr 13, 2021·Frontiers in Endocrinology·Ricardo O BarraKelly R Munkittrick
May 13, 2021·Environmental Toxicology and Chemistry·Rodrigo OrregoDouglas Holdway
Nov 26, 2010·Ecotoxicology and Environmental Safety·Rodrigo OrregoDouglas Holdway

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