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Empirical Prediction of Organic Pollutant Sorption in Natural Sediments
Author(s) -
Brown D. S.,
Flagg E. W.
Publication year - 1981
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1981.00472425001000030028x
Subject(s) - partition coefficient , sorption , octanol , chemistry , environmental chemistry , sediment , pollutant , solubility , correlation coefficient , total organic carbon , partition (number theory) , chromatography , organic chemistry , mathematics , geology , adsorption , statistics , paleontology , combinatorics
An empirical relationship between the octanol/water partition coefficients ( K ow ) and sediment sorption coefficients ( K oc ) was determined for nine chloro‐ s ‐triazine and dinitroaniline compounds. Results were compared with earlier work that reported an excellent correlation between K ow and K oc for polynuclear aromatic and chlorinated hydrocarbons. The more polar character of the present compounds, however, reduced the precision of estimating sorption from octanol/water partition coefficients. A fit of the combined data sets for a total of 19 compounds of widely varied properties (five orders of magnitude variation in solubility) yielded a relationship that should be useful for predicting simple partition coefficients ( K p ) in a number of modeling and assessment applications. Reasonable estimates of K p or K oc can be obtained from a single determination of the octanol/water partition coefficient and knowledge of the organic carbon content of the sediment.