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-10- - <br /> TABLE 1 : Normal Metal Concentrations in Uncontaminated Soils .* <br /> Element Concentration in PPM <br /> Ag 0.01-0.1 <br /> Al 10,000-300,000 <br /> Ba 100-3000 <br /> Be 0.1 -40 <br /> Ce 1-50 <br /> Co 1 -40 <br /> Cr 5-3000 <br /> Cs 0.3-25 <br /> Cu 2-100 <br /> Fe 7000-550,000 <br /> Ga 0.4-300 <br /> Ge 1 -50 <br /> Hg 0.01 -0.8 <br /> K 400-30,000 <br /> La 1 -5000 <br /> Li 7-200 <br /> M9 600-6000 <br /> Mo 0.2-5 <br /> 1qa 750-7500 <br /> Ni 10-1000 <br /> Pb 2-200 <br /> Ra (3-20) 10-7 <br /> Rb 20-600 <br /> S: 1 -10 <br /> Sn 2-200 <br /> Sr 50-1000 <br /> Th C.1 -12 <br /> Ti 1000-10,000 <br /> U 0.9-9 <br /> V 20-500 <br /> Y 2.5-250 <br /> Zn L-:J 11V l'�/� <br /> 1 <br /> Zr 3C-2000 <br /> * Jensen, Arne and Jorgenson, and Sven Eric. 1984 Analytic Chemistry <br /> Applied to Metal Ions in the Environment. IN Metals in Biological <br /> Systems, Volume 18, Circulation of Metals in the Environment. Sigel , <br /> Helmert, Ed Marcel Dekker, Inc. , NY. <br />