id author title date pages extension mime words sentences flesch summary cache txt cord-017620-p65lijyu Rodriguez-Proteau, Rosita Toxicity Evaluation and Human Health Risk Assessment of Surface and Ground Water Contaminated by Recycled Hazardous Waste Materials 2005-07-07 .txt text/plain 17229 837 43 title: Toxicity Evaluation and Human Health Risk Assessment of Surface and Ground Water Contaminated by Recycled Hazardous Waste Materials Presently, numerous federal agencies provide guidance on methods and approaches used to evaluate potential health effects and assess risks from contaminated source media, i.e., soil, air, and water. The systematic scientific approach of evaluating potential adverse health effects resulting from human exposure to hazardous agents or situations occur by the following steps: i) hazard identification; ii) dose-response (quantitative) assessment; iii) exposure assessment; iv) risk characterization [ 4] . If information concerning COPCs is not present in the drinking water and/or state and tribal water standards databases, or additional exposure pathways need to be included during the site assessment, then media-specific comparison values are available from the Soil Screening Guidance [16] , several USEPA regional offices, and individual state governments (Table 6 ). ./cache/cord-017620-p65lijyu.txt ./txt/cord-017620-p65lijyu.txt