Includes listing of modifications and innovations used in riskassessments accepted by the EPA. While beginners can benefitgreatly from the papers presented here, this collection finds itsbest use in the hands of the experienced risk assessor. The paperspresent modifications of the basic EPA methodology which have beenacceptable to regulators at specific sites. 22 peer-reviewed paperscover:

• Site Characterization

• Fate and Transport

• Toxicity, Exposures, and Receptors

• Risk Characterization/Case Studies

• Establishing Cleanup Levels.