Organic matter fractions controlling the sorption of atrazine in sandy soilsFunded under: JRC-ENVPROT 5C
The soil-water distribution, K(d), of atrazine has been studied in 24 soil profiles, comprising 109 soil horizons derived from granodioritic materials; K(d) ranged from 0.01 L/kg to 64 L/kg with a mean value of (2.4 +/- 7.3) L/kg. The concentrations of organic carbon, cation exchange capacity, clay and oxides of iron, aluminium, and manganese were determined. Several equations are proposed for the estimation of the soil sorption coefficient, K(oc), of organic compounds from their water solubility and from their octanol-water partition coefficient. In order to test the validity of such equations, the water solubility and the octanol-water partition coefficient of atrazine were determined and the predicted K(oc) values were compared to the experimentally determined values.
Bibliographic Reference: Article: Chemosphere, Vol. 25 (1992) No. 6, pp. 887-898
Record Number: 199310366 / Last updated on: 1994-11-29
Original language: en
Available languages: en