DISTRIBUTION OF HYDROPHOBIC ORGANIC-COMPOUNDS BETWEEN DISSOLVED AND PARTICULATE ORGANIC-MATTER IN GREEN BAY WATERS

Water samples freshly collected from southern Green Bay were innoculated with radiolabelled hydrophobic organic compounds (HOC) and, after equilibration, separated into particle bound, dissolved organic matter (DOM) bound and freely dissolved phases. Ambient suspended matter (2.7-28 ppm) and dissolved organic carbon (5.2-11.5 ppm) were high in concentration relative to the open Great Lakes, but HOC distribution coefficients were not significantly different between Green Bay and previously measured open Great Lakes values. HOC in the particle phase ranged from 3% for 4-MCB to 53% for BaP and DDT. HOC associated with DOM was generally higher than for open lake samples, and ranged from 2% for 2,2',5,5'-TCB to 26.5% for 4-MCB.