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Acute toxicity and environmental risk of teflubenzuron to Daphnia magna, Poecilia reticulata and Lemna minor in the absence and presence of sediment

Medeiros, Louise S. ; Souza, Jaqueline P. ; Winkaler, Elissandra U. ; Carraschi, Silvia P. ; Cruz, Claudinei ; Souza-Júnior, Severino C. ; Machado-Neto, Joaquim G.

Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes, 2013-07, Vol.48 (7), p.600-606 [Periódico revisado por pares]

Philadelphia, PA: Taylor & Francis Group

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Título:
Acute toxicity and environmental risk of teflubenzuron to Daphnia magna, Poecilia reticulata and Lemna minor in the absence and presence of sediment
Autor: Medeiros, Louise S. ; Souza, Jaqueline P. ; Winkaler, Elissandra U. ; Carraschi, Silvia P. ; Cruz, Claudinei ; Souza-Júnior, Severino C. ; Machado-Neto, Joaquim G.
Assuntos: Agronomy. Soil science and plant productions ; Animal, plant and microbial ecology ; Animals ; Applied ecology ; Aquaculture ; Araceae - drug effects ; Benzamides - toxicity ; Biological and medical sciences ; Control ; Crustaceans ; Daphnia - drug effects ; Daphnia magna ; Ecotoxicity ; Ecotoxicology, biological effects of pollution ; environmental risk ; Fish ; Freshwater ; Fundamental and applied biological sciences. Psychology ; Geologic Sediments - analysis ; insecticide ; Insecticides ; Insecticides - toxicity ; Lemna minor ; Lethal Dose 50 ; macrophyte ; microcrustacean ; Phytopathology. Animal pests. Plant and forest protection ; Poecilia - growth & development ; Poecilia reticulata ; Protozoa. Invertebrates ; Risk assessment ; Sediments ; Toxicity ; Water Pollutants, Chemical - toxicity
É parte de: Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes, 2013-07, Vol.48 (7), p.600-606
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: This study aimed to estimate the acute toxicity of teflubenzuron (1-(3,5-dichloro-2,4-difluorophenyl)-3-(2,6-difluorobenzoyl)urea) (TFB) for Daphnia magna, Lemna minor and Poecilia reticulata, in the absence and presence of sediment; evaluate the effect of sediment on the TFB bioavailability; and to classify this insecticide according to its environmental poisoning risk for agricultural and aquaculture uses. The tests of TFB acute toxicity were conducted in static system in a completely randomized design with increasing TFB concentrations, and a control group. The TFB has been classified according to the estimated values of EC 50 and LC 50 by its acute toxicity and environmental risk. The sediment significantly reduced toxicity and bioavailability of TFB in water column. Therefore, the insecticide can be classified as being highly toxic to Daphnia magna, which means the agricultural and aquacultural uses of TFB pose a high risk of environmental toxicity to non-target organisms. However, it was practically non-toxic to L. minor and P. reticulata.
Editor: Philadelphia, PA: Taylor & Francis Group
Idioma: Inglês

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Acute toxicity and environmental risk of teflubenzuron to Daphnia magna, Poecilia reticulata and Lemna minor in the absence and presence of sediment

Medeiros, Louise S. ; Souza, Jaqueline P. ; Winkaler, Elissandra U. ; Carraschi, Silvia P. ; Cruz, Claudinei ; Souza-Júnior, Severino C. ; Machado-Neto, Joaquim G.

Philadelphia, PA: Taylor & Francis Group

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