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Multiyear and seasonal wide-scale indicators for French surface waters contamination by WFD substances. [PDF]

Environ Sci Pollut Res Int
Staub PF, Salomon M, Assoumani A, Blard-Zakar A.   +3 more
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Environmental impact of diuron transformation: a review

Chemosphere, 2004
Diuron is a biologically active pollutant present in soil, water and sediments. A synthesis of literature data on its physicochemical properties, partitioning behaviour, abiotic and biotic transformations, toxicological and ecotoxicological impacts has been here performed.
N Cochet
exaly   +3 more sources

Photocatalytic degradation of the diuron pesticide

Environmental Chemistry Letters, 2007
The occurrence of chlorinated pesticides in wellwaters is a major problem of public health in Ivory Coast and other African countries. Here, we studied the photocatalytic degradation of the pesticide diuron in aqueous solution in presence of two commercial TiO2 catalysts, P25 and PC500. The capacity of diuron adsorption at the TiO2 surface is lower for
Didier Robert, Albert Trokourey
exaly   +2 more sources

Kinetics of the chemical degradation of diuron

Chemosphere, 2002
The influence of pH and buffer concentration on the chemical degradation of diuron in water has been analysed over a wide temperature range. The process irreversibly gives 3,4-dichloroaniline as the only product containing the phenyl ring. H+, OH- and phosphate buffer are efficient catalysts of the reaction. The rate constant first increases rapidly at
SALVESTRINI, Stefano, DI CERBO P, CAPASSO S.   +2 more
openaire   +3 more sources

Photolysis of Diuron

Pesticide Science, 1997
The major photoproducts observed in the photolysis of diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea] (2) in aqueous solution resulted from a heterolytic substitution of chlorine by OH (photohydrolysis). A wavelength effect was observed: at 254 nm the formation of 3-(4-chloro-3-hydroxyphenyl)-1,1-dimethylurea (3) accounted for more than 90% of the ...
Jaromír Jirkovský, Valérie Faure, Pierre Boule   +2 more
openaire   +1 more source

Diuron sorption isotherms in freshwater biofilms

Science of The Total Environment, 2019
Biofilms are excellent bioindicators for water quality assessment because of their ability to integrate contamination, and their position at the base of the trophic chain in aquatic environments. Pesticides are ubiquitous in aquatic environments and can constantly interact with aquatic organisms, including those that make up biofilms, at fluctuating ...
Chaumet, Betty, Morin, Soizic, Boutry, Sébastien, Mazzella, Nicolas   +3 more
openaire   +3 more sources

Behavioral Responses to Atrazine and Diuron in Goldfish

Archives of Environmental Contamination and Toxicology, 1998
Experiments were performed in goldfish to determine the effects of a short-term exposure (24 h) to atrazine or diuron (0.5, 5, 50 microgram/L) on some behavior endpoints related to swimming and social activities. Observations were also made to assess the influence of such exposure on the behavioral responses of fish to the flow of a crude skin extract ...
Saglio, Philippe, Trijasse, S.
openaire   +3 more sources

Titrimetric determination of diuron in herbicide formulations

The Analyst, 1969
Diuron is extracted with chloroform from a dispersion of the sample in 4 N hydrochloric acid and, after evaporation of the solvent, is hydrolysed in boiling 24 N sulphuric acid. The liberated dimethylamine is distilled into 2 per cent. boric acid and titrated with 0·05 N hydrochloric acid with methylene blue-methyl red as indicator.
S H, Yuen, B, Milosevic
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Degradation of diuron in aqueous solution by ozonation

Journal of Environmental Science and Health, Part B, 2008
Degradation of diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea] in aqueous solution and the proposed degradation mechanism of diuron by ozonation were investigated. The factors that affect the degradation efficiency of diuron were examined. The generated inorganic ions and organic acids during the ozonation process were detected.
Jingwei, Feng, Zheng, Zheng, Jingfei, Luan, Jibiao, Zhang, Lianhong, Wang   +4 more
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Aerobic degradation of diuron by aquatic microorganisms

Journal of Environmental Science and Health, Part B, 1982
Degradation of diuron [3-(3,4-dichlorophenyl)-1,1-dimethyl-urea] by microorganisms obtained from pond water and sediment was determined under aerobic conditions. Enrichment procedures were used to isolate cultures capable of degrading the herbicide. Several mixed fungal/bacterial and mixed bacterial cultures were isolated that could degrade diuron. The
P A, Ellis, N D, Camper
openaire   +2 more sources