ABSTRACT
Soil systems are subject to contamination by a variety of hazardous chemicals, such as heavy metals and toxic organic compounds. The major sources of pollutants are attributed to landfills and industrial operations. For example, any hazardous substance present in a soil matrix represents a threat to public health and groundwater. The latter is one of the most valuable natural resources and a major source of drinking water in the United States. Many domestic, industrial, and agricultural activities depend on groundwater resources. Therefore, strategies for soil clean-up are increasing in demand.
