kco – -Translation – Keybot Dictionary

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KCO
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Kow
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D'après sa valeur Kco et sa solubilité dans l'eau, 1'oxyde de bis(2-chloroéthyle) ne devrait pas s'adsorber sur les sols ou les sédiments, et on le juge donc mobile dans ces milieux (EPA, 1987a). Wilson
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Based on its Koc and water solubility, BCEE is not expected to adsorb to soil or sediment and is therefore considered to be mobile in these media (U.S. EPA, 1987a). Wilson
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Kco : coefficient de partage entre le carbone organique et l'eau
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Kow : octanol/water partition coefficient
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Kco
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LOAEL
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1988). Comme, chez le phénol, log Kco et log Koe sont faibles, on s'attend à une faible sorption du composé sur la matière organique. Dans les sols acides, on a signalé sa faible adsorption et sa forte mobilité (Scott
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Modelling indicates that phenol partitions differently depending on the medium to which it is released. For example, if emitted into air, about half of phenol is found in air, while most of the remainder is found in soil. When phenol is released to water, the model predicts that almost all of it is found in water (Mackay
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Un coefficient de sorption dans le sol (Kco) de 113 a été calculé pour le 2-éthoxyéthanol selon la méthode de Sabljic (1984), ce qui indique une mobilité modérée dans le sol (U.S. EPA, 1985). Les valeurs de rétention du 2-éthoxyéthanol dans 21 sols de la Nouvelle-Zélande et de Fidji ont varié de 8 à 178 mg/g, ces valeurs étant étroitement liées au pouvoir d'échange cationique et à un certain nombre de mesures de la teneur en humidité de ces sols (Churchman et Burke, 1991).
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, 1986). 2-Ethoxyethanol was detected at concentrations of up to 18.3 µg/m3 in indoor air samples collected in new buildings (hospital, office, nursing home) in the United States. In older buildings (office, nursing home, school), concentrations were lower (i.e., up to 4.15 µg/m3) (Sheldon
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Aux températures ambiantes, ce composé organique possède une tension de vapeur de 0,095 kPa (Verschueren,1983), son coefficient de partage n-octanol/eau faible (valeur logarithmique Koe) varie de 1,0 (Sittig, 1981) à 1,58 (Hawley, 1981), et il a une grande solubilité dans l'eau, qui est comprise entre 10 200 (Verschueren, 1983) et 17 400 mg/L (Hake et Rowe, 1963). Les valeurs publiées du logarithme du coefficient de partage carbone organique/eau (Kco) varient de 0,80 (Ellington
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Bis(2-chloroethyl) ether (BCEE) is a ß-chloroalky1 ether (U.S. EPA, 1980) with the Chemical Abstracts Service (CAS) registry number of 111-44-4, the molecular formula C4H8C12O, and the structural formula (C1CH2CH2) 2O. Synonyms for BCEE include dichloroethyl ether, dichloroethyl oxide, and bis(ß-chloroethyl) ether. This organic compound is a colourless, volatile liquid with a "chlorinated solvent-like" odour (Sittig, 1981). At ambient temperature, BCEE has a vapour pressure of 0.095 kPa (Verschueren, 1983), a low n- octanol/water partition coefficient [log Kow] ranging from 1.0 (Sittig, 1981) to 1.58 (Hawley, 1981), and a high water solubility ranging from 10 200 (Verschueren, 1983) to 17 400 mg/L (Hake and Rowe, 1963). The log organic carbon/water partition coefficient (Koc) values reported in the literature range from 0.80 (Ellington
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Le form aldéh yde n' est probablement pas adsorbé pour la peine sur les particules du sol et, compte tenu de la valeur de son Kco, on considère qu'il est mobile dans ce milieu. D'après Kenaga (1980), on croit que les composés dont le Kco est <100 sont modérément mobiles.
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Based on data for 1997 reported to the National Pollutant Release Inventory (NPRI), on-road motor vehicles are the largest direct source of formaldehyde released into the Canadian environment. The amount estimated by modelling to have been released in 1997 from on-road motor vehicles was 11 284 tonnes (Environment Canada, 1999b). While Environment Canada (1999b) did not distinguish between gasoline-powered and diesel-powered vehicles, it has been estimated, based on emission data from these vehicles, that they account for about 40% and 60% of on-road automotive releases, respectively. Aircraft emitted an estimated 1730 tonnes, and the marine sector released about 1175 tonnes (Environment Canada, 1999b). Data on releases from on-road vehicles were estimated by modelling (Mobile 5C model), using assumptions outlined in Environment Canada (1996). It can be expected that the rates of releases of formaldehyde from automotive sources have changed and will continue to change; many current and planned modifications to automotive emission control technology and gasoline quality would lead to decreases in the releases of formaldehyde and other VOCs (Environment Canada, 1999b).
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Le form aldéh yde n' est probablement pas adsorbé pour la peine sur les particules du sol et, compte tenu de la valeur de son Kco, on considère qu'il est mobile dans ce milieu. D'après Kenaga (1980), on croit que les composés dont le Kco est <100 sont modérément mobiles.
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Based on data for 1997 reported to the National Pollutant Release Inventory (NPRI), on-road motor vehicles are the largest direct source of formaldehyde released into the Canadian environment. The amount estimated by modelling to have been released in 1997 from on-road motor vehicles was 11 284 tonnes (Environment Canada, 1999b). While Environment Canada (1999b) did not distinguish between gasoline-powered and diesel-powered vehicles, it has been estimated, based on emission data from these vehicles, that they account for about 40% and 60% of on-road automotive releases, respectively. Aircraft emitted an estimated 1730 tonnes, and the marine sector released about 1175 tonnes (Environment Canada, 1999b). Data on releases from on-road vehicles were estimated by modelling (Mobile 5C model), using assumptions outlined in Environment Canada (1996). It can be expected that the rates of releases of formaldehyde from automotive sources have changed and will continue to change; many current and planned modifications to automotive emission control technology and gasoline quality would lead to decreases in the releases of formaldehyde and other VOCs (Environment Canada, 1999b).
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Le form aldéh yde n' est probablement pas adsorbé pour la peine sur les particules du sol et, compte tenu de la valeur de son Kco, on considère qu'il est mobile dans ce milieu. D'après Kenaga (1980), on croit que les composés dont le Kco est <100 sont modérément mobiles.
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Based on data for 1997 reported to the National Pollutant Release Inventory (NPRI), on-road motor vehicles are the largest direct source of formaldehyde released into the Canadian environment. The amount estimated by modelling to have been released in 1997 from on-road motor vehicles was 11 284 tonnes (Environment Canada, 1999b). While Environment Canada (1999b) did not distinguish between gasoline-powered and diesel-powered vehicles, it has been estimated, based on emission data from these vehicles, that they account for about 40% and 60% of on-road automotive releases, respectively. Aircraft emitted an estimated 1730 tonnes, and the marine sector released about 1175 tonnes (Environment Canada, 1999b). Data on releases from on-road vehicles were estimated by modelling (Mobile 5C model), using assumptions outlined in Environment Canada (1996). It can be expected that the rates of releases of formaldehyde from automotive sources have changed and will continue to change; many current and planned modifications to automotive emission control technology and gasoline quality would lead to decreases in the releases of formaldehyde and other VOCs (Environment Canada, 1999b).