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Ms. Deborah M. Proctor is a Principal Scientist in Exponent's Health Sciences practice. Ms. Proctor is a recognized expert in the toxicology and environmental fate of hexavalent and trivalent chromium and has published ten manuscripts in the peer-reviewed literature on related topics. She specializes in the fields of applied toxicology human health risk assessment exposure reconstruction and risk-based site investigation design. She is experienced in regulatory negotiations public communication and litigation support for human health risk assessment related projects including Proposition 65 evaluations. and is experienced in designing. Ms. Proctor has designed oral and dermal bioavialability studies for metals and prepared site-specific health risk assessments for sites impacted with heavy metals polynuclear aromatic hydrocarbons (PAHs) petroleum fuels chlorinated solvents pesticides and Poly Chlorinated Biphenyl (PCBs). She has over 12 years of experience in the environmental health risk assessment field. | 