Fig. 10. Changes in the size distribution of particles associated with (a) OC and (b) OC concentration vs. time for the March storm on the Naugatuck River below Torrington, CT. (a) Size distribution graph contains two colloid fractions and a truly dissolved fraction, except for the final point. (b) Concentration graph shows data for total OC, 0.45-µm filtrate, and 0.1-µm filtrate, and indicates points chosen for size distribution analysis.