Fate of fluroxypyr in water

Autor: J. R. Miller, R. G. Lehmann, C. B. Cleveland
Rok vydání: 1993
Předmět:
Zdroj: Weed Research. 33:197-204
ISSN: 1365-3180
0043-1737
Popis: Summary: Resume: Zusammenfassung Dissipation of fluroxypyr in North Dakota lake waters was examined in three laboratory studies: photolysis, aerobic metabolism, and anaerobic metabolism. Photolysis was negligible in sterilized water, with and without natural photosensitizers. In 1:10 sediment:water systems, 50% disappearance times of 0.5–2 weeks were observed in the metabolism studies (25°C). Major metabolites (>10%) included the dichloropyridinol and 3-chloropyridinol derivatives, while the 5-chloropyridinol derivative appeared (10%) comprenaient les derives dichloropyridinol et 3-chloropyridinol, tandis que le derive 5-chloro-pyridinol apparaissait (10%) zahlten Dichlorpyridinol und 3-Chlor-pyridinol-Derivate, wahrend 5-Chlorpyridinol-Derivate in anaeroben Systemen unter 7% blieben. Die Pyridinole verschwanden rasch in aeroben, aber viel langsamer in anaerobischen Systemen. In solchen Gewassern werden Fluroxypyr und Pyridinole erwartungsgemas zum Ende einer Vegetationsperiode verschwunden sein.
Databáze: OpenAIRE
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