Fig. 8. Frequency distribution of Hg concentration in sand, silt, and clay fractions, and in total soil, of horizons of uncultivated soil from Alberta, Canada (n = 29) (data from Dudas and Pawluk, 1976).
Fig. 8. Frequency distribution of Hg concentration in sand, silt, and clay fractions, and in total soil, of horizons of uncultivated soil from Alberta, Canada (n = 29) (data from Dudas and Pawluk, 1976).