Fate of fluroxypyr in water

Résumé: 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 dérivés dichloropyridinol et 3‐chloropyridinol, tandis que le dérivé 5‐chloro‐pyridinol apparaissait (