Walt Shields Email & Phone Number

A Certified Professional Soil Scientist, Dr. Shields specializes in the study of transport and geochemical fate of toxic pollutants and their environmental effects. He serves as an expert witness in environmental forensics and has testified on the origin, transport, and fate, of chemicals in air, soils, sediments, surface water, groundwater, and biota, and exposure of humans and ecological receptors to those chemicals. He has particular expertise in the environmental chemistry and source identification of dioxins and furans, PCBs, PAHs, pesticides, and heavy metals and metalloids. He investigates the industrial archeology of sites to understand the history of contaminant sources in a given area. Dr. Shields has also testified on the allocation and appropriateness of remediation costs at a variety of sites.Specialties: environmental forensics, transport and fate analyses, industrial archeology, remedial cost apportionment, source identification, environmental issues related to a wide variety of sites including mines and smelters, steel mills, wood treatment, former MGPs, chemical manufacturing, pesticide application areas, glass manufacturing, ports and harbors, landfills, and pulp and paper mills.CV available at www.exponent.com

Listed skills include Environmental Science, Environmental Awareness, Remediation, Soil, and 29 others.