||Photoreactivity of Aquatic Pollutants Sorbed on Suspended Sediments.
Miller, Glenn C. ;
Zepp, Richard G. ;
||Environmental Research Lab., Athens, GA.
Water pollution ;
Organic compounds ;
Chemical analysis ;
Absorption spectra ;
Reaction kinetics ;
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A technique is described that can be used to ascertain the photoreactivity of chemicals sorbed on particulates suspended in water. The influence of sorption on photoreactivity is disentangled from the effects of light attenuation and scattering by the sorbent. When this technique was employed, the photoreactivity of two hydrophobic chemicals was determined on sediments obtained from three widely separated water bodies in the United States. Kinetic and product studies indicate that the sorbed chemicals are in a less polar microenvironment that is a considerably better hydrogen atom donor than water.