kce – -Translation – Keybot Dictionary

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Kce, le coefficient de partage carbone organique/eau (le minimum signalé est de 2 000 L/kg),
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) by >33% and decreased the growth of corn and soybeans by 29-80% after three weeks (Overcash
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Kce
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LC05
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Dans l'environnement naturel, le disulfure de carbone est très mobile dans le sol (log Kce = 1,79) et se volatilise rapidement, de sorte qu'il risque peu d'y persister assez longtemps pour faire l'objet d'une biodégradation importante.
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Carbon disulfide is expected to have little or no tendency to bioaccumulate or biomagnify in biota, owing to its relatively low octanol/water partition coefficient (log Kow) value (2.14) and rapid metabolism in most animals (Beauchamp
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Dans l'environnement terrestre, l'acroléine subit la biodégradation, l'hydrolyse, la volatilisation et la sorption irréversible (Irwin, 1988; Howard, 1989; Chou et Spanggord, 1990b). Ces processus devraient entraÓner une baisse sensible du taux élevé d'infiltration de l'acroléine prévu en raison de sa faible valeur expérimentale de Kce (Irwin, 1988).
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In 1985, acrolein was detected (detection limit 5 µg/L) in liquid effluents from two organic chemical manufacturing plants that discharged into the St. Clair River at Sarnia, Ontario, at estimated loadings of 3.9 and 0.45 kg/day (King and Sherbin, 1986). However, in an industrial survey conducted under CEPA Section 16, companies in this sector indicated in their responses that they were not involved in the production, import, use, release or monitoring of acrolein during the 1995-96 survey period (Environment Canada, 1997b).
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Cette supposition est confirmée par le calcul du coefficient de partage entre le carbone organique et l'eau (Kce) qui donne une valeur de 7 (Howard, 1993) et par un coefficient de sorption du sol (Kss) d'environ 50, estimés à partir des rapports quantitatifs entre la structure et l'activité (Sabljic, 1984; U.S. EPA, 1986), qui laissent tous deux conclure que le DMF est mobile dans les sols.
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Fugacity modelling was conducted to provide an overview of environmental fate from key reaction and advection (movement out of a system) pathways for DMF and its overall distribution in the environment. A steady-state, non-equilibrium model (Level III fugacity model) was run using the methods developed by Mackay (1991) and Mackay and Paterson (1991). Assumptions, input parameters and results are summarized in Environment Canada (2000) and presented in detail in DMER and AEL (1996), Beauchamp (1998) and Bobra (1999). Modelling predictions do not reflect actual expected concentrations in the environment but rather indicate the broad characteristics of the fate of the substance in the environment and its general distribution among media.