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Influence of sorbent concentration on sorption of kepone to solids
Author(s) -
Staples Charles A.,
Geiselmann Stephanie J.
Publication year - 1988
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620070207
Subject(s) - sorption , environmental chemistry , total organic carbon , chemistry , dissolved organic carbon , desorption , sorbent , organic matter , partition coefficient , carbon fibers , particle (ecology) , total dissolved solids , adsorption , chromatography , environmental science , environmental engineering , organic chemistry , geology , materials science , oceanography , composite number , composite material
Solids concentrations in environmental compartments may vary from a few milligrams per liter in surface waters to 500,000 mg/L in sediments and subsurface ground waters. The effect of solids concentration (both with and without particle‐bound organic matter) on kepone soil/water partition coefficients was investigated. A strong dependency on particle concentration was found at concentrations of 100 mg/L and above. A weaker dependency on organic carbon was found at these solids concentrations. Standard empirical relationships for sorption of organic chemicals based solely on particle organic carbon content are not applicable for the solids‐dependent relationship found here for kepone. These data indicate that new relationships based on both particle characteristics and organic carbon content are required to predict absorption and desorption in environments high in solids and low in organic carbon, such as subsurface ground water.