Monitoring of toxicity during degradation of selected pesticides using ionizing radiation

• Published in: Chemosphere (Oxford) 2004-10, Vol.57 (2), p.135-145
• Main Authors: Drzewicz, Przemysław, Nałęcz-Jawecki, Grzegorz, Gryz, Michał, Sawicki, Józef, Bojanowska-Czajka, Anna, Głuszewski, Wojciech, Kulisa, Krzysztof, Wołkowicz, Stanisław, Trojanowicz, Marek
• Format: Article
• Language: English
• Subjects: 2,4-D; 2,4-Dichlorophenoxyacetic Acid - chemistry; 2,4-Dichlorophenoxyacetic Acid - radiation effects; Ammonia - metabolism; Animal, plant and microbial ecology; Animals; Applied ecology; Bacteria; bioassays; Biological and medical sciences; Chromatography, High Pressure Liquid; dicamba; Dicamba - chemistry; Dicamba - radiation effects; Dose-Response Relationship, Radiation; Ecotoxicology, biological effects of pollution; Environmental Monitoring; Fresh water environment; Fundamental and applied biological sciences. Psychology; herbicide residues; Herbicides - chemistry; Herbicides - radiation effects; Herbicides - toxicity; ionizing radiation; Luminescent Measurements; Microtox test; Ozone - chemistry; photolysis; pollution control; Radiation, Ionizing; Toxicity Tests; Vibrio fischeri; waste treatment; water pollution; Water Purification
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/j.chemosphere.2004.05.019

The optimization of experimental conditions for radiolytic removal of organic pollutants from water and waste with the use of ionizing radiation via controlling the concentration of target compound(s) requires also monitoring the toxicity changes during the process. Commonly used herbicides 2,4-D and dicamba were shown to increase toxicity measured with the Microtox test at low irradiation doses resulting from formation of more toxic transient products, which can be decomposed at larger doses. The changes of toxicity were examined with respect to dose magnitude and the presence of commonly occurring scavengers of radiation.