TRANSPORT AND STORAGE OF CS-137 AND PB-210 IN SEDIMENTS OF LAKE ST-CLAIR

Although the lake is shallow, rapidly flushed, and possesses only a thin layer of postglacial sediment (ca. 30 cm max.), 8% of the estimated 137Cs loading from atmospheric nuclear testing in the mid-1960s and 13% of the potential standing crop of excess 210Pb were retained. A sediment column transport model including eddy diffusive mixing, advection, and resuspension, acceptably described the vertical distribution of these radionuclides as well as stable lead. -from Authors