I have 20 years of experience, and specialize in the field of environmental toxicology with specific knowledge in the areas of geochemistry, metal toxicology and lead poisoning. I have published on such topics as molecular toxicology of metals, geospatial assessment of environmental contamination and environmental contamination and at-risk populations. I have had experience working for the federal government, private consulting firms and academic institutions. I own and operate an environmental training and consulting company.