Fig. 3. Mean soluble Cu and Zn concentrations in six sequential samples of runoff water. The term n = 11 and 13 for Sites 1 and 9, respectively. Bars represent standard deviations.
Fig. 3. Mean soluble Cu and Zn concentrations in six sequential samples of runoff water. The term n = 11 and 13 for Sites 1 and 9, respectively. Bars represent standard deviations.