Expertise

Dr. Smith’s expertise in the assessment of human health risk includes the following agents:

  • Hazardous Metals
    • Arsenic, Barium, Beryllium, Cadmium, Calcium, Chromium, Copper, Lead, Magnesium, Manganese, Mercury, Silver, Selenium, Thallium, Zinc
  • Petroleum Products
    • Specialty Oils & Solvents
    • Manufactured Gas Plant Wastes
    • Fractions/Components
      • Polycyclic Aromatic Hydrocarbons (PAH)
      • Volatile Petroleum Hydrocarbons (VPH)
      • Extractable Petroleum Hydrocarbons (EPH)
  • Volatile Organic Compounds (VOC)
    • Chlorinated Solvents
    • Non-Chlorinated Organic Compounds
  • Persistent Polyhalogenated Organic Compounds
    • Polychlorinated Dibenzo-p-dioxin (PCDD)
    • Polychlorinated Dibenzofuran (PCDF)
    • Polychlorinated Biphenyls (PCBs)
  • Pesticides
  • Silica (crystalline and Amorphous)
  • Particulate

and the following techniques;

  • Product/Method Evaluation
    • Exposure Assessment
    • Derivation of Toxicity Values
    • Modeling Receptor Exposure
    • Validation of Machine/Methodology
    • Confidential Evaluation of New Products
  • Study Design
  • Sampling and Analysis
    • Soils/Sediments
    • Air (particulate/volatiles)
    • Groundwater/Surface Water
    • Surfaces (PCBs, Mercury, Lead)
    • Use of Surrogate Toxicity Values
    • Congener-Specific Analyses (Dioxins/PCBs)
    • Assessment of Relative Bioaccessibility/Bioavailability
    • PAH Source Determination (Methyl Aromatic Ratio Analysis)
  • Derivation of Site-Specific Alternative Remedial Goals
    • Soils/sediments, Groundwater, Surface Water, Indoor air
  • Techniques Applicable to Hazardous Metals
    • Free vs. Bound
    • Fate, Transport, & Disposition
    • Relative Bioaccessibility/Bioavailability
    • U.S. EPA Lead Models
  • Techniques Applicable to PAH Compounds
    • Estimated Order of Potency (EOP) Approach
    • Massachusetts VPH/EPH Approach
    • PAH Source Determination (Methyl Aromatic Ratio Analysis)
  • Techniques Applicable to Volatile Organic Compounds
    • Modeling Vapor Intrusion of Indoor Air
  • Techniques Applicable to Persistent Polyhalogenated Organic Compounds
    • U.S. EPA Toxic Equivalency Factor (TEF) Approach
    • Mixture and Congener-Specific Evaluation of Risk
    • Evaluation and Use of Biomarkers of Exposure & Harm
    • Comparison of Relative Risk