References

Bohn, H. L., McNeal, B. L., and O'Connor, G. A. (1985). "Soil Chemistry," 2/Ed. John Wiley & Sons, New York.

Coles, D. G. a. L. D. R. (1982). Migration of ruthenium-106 in a Nevada Test Site Aquifer: Discrepancy between field and laboratory results. Science 215, 1235-1237.

Frenkel, H., Goertzen, J. O., and Rhoades, J. D. (1978). Effects of clay type and content, exchangeable sodium percentage, electrolyte concentration on clay dispersion and soil hydraulic. Soil Sci. Soc. Am. J. 42, 32-39.

Gounaris, V., P.R. Anderson, and T.M. Holsen (1993). Characteristics and environmental significance of colloids in landfill leachate. Environ. Sci. Technol. 27, 1381-1387.

Guibault, G. C. (1990). Assay of organic compounds. In "Practical fluorescence" (G. C. Guibault, ed.), pp. 231-366. Marcel Dekker, Inc., New York.

Kaplan, D. I., P.M. Bertsch, D.C. Adriano, and K.A. Orlandini (1994). Actinide association with groundwater colloids in a coastal plain aquifer. Radiochimica Acta.

Kaplan, D. I., Bertsch, P. M., and Adriano, D. C. (1995). Facilitated transport of contaminant metals through an acidified aquifer. Ground water 33, 708-717.

Kaplan, D. I., Bertsch, P. M., Adriano, D. C., and Miller, W. P. (1993). Soil-borne colloids as influenced by water flow and organic carbon. Environ. Sci. Technol. 27, 1193-1200.

Kaplan, D. I., Hunter, D. B., Bertsch, P. M., Bajt, S., and Adriano, D. C. (1994). Application of synchrotron x-ray fluorescence spectroscopy and energy dispersive x-ray analysis to identify contaminant metals on groundwater colloids. Environ. Sci. Technol. 28, 1186-1189.

Khilar, K. C. a. H. S. F. (1984). The existence of a critical salt concentration for particle release. Journal of Colloid Interface Science 101, 214-224.

Kretzschamar, R., Robarge, W. P., and Weeds, S. B. (1993). Flocculation of kaolinitic soil clays: Effect of humic substances and iron oxides. Soil Sci. Soc. Am. J. 57, 1277-1283.

McCarthy, J. F., and Degueldre, C. (1992). Sampling and characterization of colloids and particles in groundwater for studying their role in contaminant transport: Chapter 6. In "Environmental Particles" (J. Buffle and H. P. van Leeuwen, eds.), Vol. 2. Lewis Publishers, Ann Arbor.

McCarthy, J. F., and Zachara, J. M. (1989). Subsurface transport of contaminants. Environ. Sci. Technol. 23, 496-502.

McDowell-Boyer, L. M., J.R. Hunt, and N. Sitar (1986). Particle transport through porous media. Water Resour. Res. 22, 1901-1921.

Miller, W. P., and Miller, D. M. (1987). A micro-pipette method for soil mechanical analysis. Communications in Soil and Plant Analysis 18, 1-15.

Nelson, D. W., and Sommers, L. E. (1982). Total Carbon, Organic Carbon, Organic Matter. In "Methods of Soil Analysis" (A.L Page, R. H. Miller and D.R. Keeney, eds.), Vol. 2. American Society of Agronomy, Madison, WI.

Newman, M. E., Elzerman, A. W., and Looney, B. B. (1993). Facilitated transport of selected metals in aquifer materials packed in columns. J. Contam. Hydrol. 14, 233-246.

Nylan, J. W., B.J. Drennan, W.V. Abeele, M.L. Wheeler, W.D. Purtymun, G. Trujillo, W.J. Herrera, and J.W. Booth (1985). Distribution of plutonium and americium beneath a 33-yr-old liquid waste disposal site. J. Environ. Qual. 14, 501-509.

Penrose, W. R., Polzer, W. L., Essington, E. H., Nelson, D. M., and Orlandini, K. A. (1990). Mobility of plutonium and americium through a shallow aquifer in a semiarid region. Environ. Sci. and Technol. 24, 228-234.

Puls, R. W., and Powell, R. M. (1992). Transport of inorganic colloids through natural aquifer material: Implications for contaminant transport. Environ. Sci. Technol. 26, 614-621.

Roy, S. B., and Dzombak, D. A. (1997). Chemical factors influencing colloid-facilitated transport of contaminants in porous media. Environ. Sci. Technol. 31, 656-664.

Senesi, N., Miano, T. M., Provenzano, M. R., and Brunetti, G. (1991). Characterization, differentiation, and classification of humic substances by fluorescence spectroscopy. Soil Sci. 152, 259-271.

Seta, A. K., and Karathanasis, A. D. (1997). Atrazine adsorption by soil colloids and co-transport through subsurface environments. Soil Sci. Soc. Am. J. 61, 612-617.

Sposito, G. (1989). "The Chemistry of Soils," Oxford University Press, New York.