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Scribner, E.A., Thurman, E.M., Goolsby, D.A. and Battaglin, W.A. (2005) Summary of Significant Results from Studies of Triazine Herbicides and Their Degradation Products in Surface Water, Ground Water, and Precipitation in the Midwestern United States during the 1990s. Scientific Investigations Report 2005-5094, US Geological Survey, Reston, 1-27.

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• TITLE: Photodegradation of Atrazine on TiO2―Products Toxicity Assessment

  AUTHORS: Sarka Klementova, Zuzana Rabova-Tousova, Ludek Blaha, David Kahoun, Petr Simek, Lucie Keltnerova, Martin Zlamal

  KEYWORDS: Atrazine, Photodegradation, Toxicity Tests, Algae, Rainbow Trout Gill Cells

  JOURNAL NAME: Open Journal of Applied Sciences, Vol.5 No.1, January 22, 2015

  ABSTRACT: Toxicity in reaction mixtures of atrazine irradiated on immobilized TiO2 at varying irradiation times was studied using an algal growth test on unicellular green alga Raphidocelis subcapitata and a cytotoxicity test with a RTgill-W1 cell line. The toxicity of atrazine samples to algae decreased exponentially with the time of irradiation on TiO2 up to 3 h for both IC50 and IC20 values calculated for growth rate inhibition and yield. A trend to increasing variability between replicates in atrazine samples irradiated on TiO2 for longer time periods was observed; the trend was particularly pronounced in samples irradiated for 3 and 5 hours, where the atrazine samples caused moderate stimulation in lower concentration treatments (up to 550 μg/l of the initial atrazine concentration). None of the atrazine samples showed significant cytotoxicity to the rainbow trout gill cell line (RTgill-W1).