OJAppS  Vol.5 No.1 , January 2015
Photodegradation of Atrazine on TiO2―Products Toxicity Assessment
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).

Cite this paper
Klementova, S. , Rabova-Tousova, Z. , Blaha, L. , Kahoun, D. , Simek, P. , Keltnerova, L. and Zlamal, M. (2015) Photodegradation of Atrazine on TiO2―Products Toxicity Assessment. Open Journal of Applied Sciences, 5, 14-21. doi: 10.4236/ojapps.2015.51002.
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