THE INFLUENCE OF SALTING OUT ON THE SORPTION OF NEUTRAL ORGANIC COMPOUNDS IN ESTUARIES

摘要

The relative (unsaturated) solubility and sorption of 2.2', 5.5'-tetrachlorobiphenyl have been studied along an estuarine salinity gradient. The aqueous compound was salted out with increasing salinity and an aqueous salting constant of about 0.002 l g~-1 was derived. Sorption of the compound to estuarine particles increased with increasing salinity for a range of particle concentrations, but the magnitude of this effect (sorption salting constants of about 0.05-0.011 g~-1) indicated that salting out of the aqueous phase was not solely responsible.