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C <br />Table 7 <br />Preapplication Report: 94-95 <br />Reported Rages of Soil Properties <br />Naturally Occurring <br />Reported Buffer <br />Levels in Soils <br />Powers for Soils <br />Maximum <br />Minimum <br />Constituent <br />(m /k) <br />(mg/kg) <br />Maximum <br />Minimum <br />Cadmium <br />7 <br />0.01 <br />2272 (a) <br />423 (a) <br />Copper <br />100 <br />2 <br />90 (b) <br />30 (b) <br />Lead <br />3000 <br />0.1 <br />2272 (c) <br />5 (c) <br />Nickel <br />1000 <br />5 <br />2272 (c) <br />5 (c) <br />Zinc <br />300 <br />10 <br />100 (d) <br />5 (d) <br />(a) Kuo, S. 1990. Cadmium Buffering Capacity and Accumulation in Swiss <br />Chard in Some Sludge -Amended Soils. Soil Sci. Soc. Am. J. 54:86-91. <br />(b) McLaren, R.G. , and D.V. Crawford. 1973. Studies on Soil Copper. II. The <br />Specific Adsorption of Copper by Soils. J. Soil Sci. 24:443-452. <br />(c) Data unavailable, took highest max and lowest min from other elements. <br />(d) Barber, S.A. 1984. Soil Nutrient Bioavailability: A Mechanistic Approach. <br />John Wiley and Sons. New York. <br />PSETI.XLS 9/13/94 <br />