ABSTRACT
The contamination of many sites in Missouri with 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is without doubt the single most publicized and pressing environmental issue in Missouri. The soil columns for studies dealing with TCDD mobility in various dispersing mediums were conducted using six solvents ranging from acetone/water to o-xylene. The concentration of TCDD was determined in the horizontal soil sections and plotted against the distance from the point of application. An important factor in the fate of TCDD at the contaminated site is the initial depth of migration of the TCDD in the soil. The dispersing medium would be the controlling parameter in the initial disposition and binding of TCDD in the soil, thus affecting its environmental fate. All the experiments for the study were conducted with the representative uncontaminated soil from Times Beach, Missouri.
