Intrinsik Occupational and Environmental Medicine Professionals

Dr. Mary McDaniel, Vice President, Occupational Medicine Physician, Attorney
Mary McDaniel is a board-certified physician, licensed attorney, and risk and crisis communication expert. Dr. McDaniel brings more than 25 years of experience in environmental health assessment, risk communication, risk management, and occupational and environmental medicine to Intrinsik. Dr. McDaniel is involved in developing risk communication and crisis communication strategies for public agencies and companies in the United States and overseas.

During her career, Dr. McDaniel has developed and supported industry and community involvement programs in a variety of settings worldwide. She has planned, facilitated, and served as a health expert at public meetings throughout the United States, where she seeks to integrate the expertise of health agencies, elected officials, industry, and community members to enhance the communication and decision making process.

Dr. McDaniel has played a major role on many high-profile health and environmental projects. She established and provided oversight for a community health clinic, which provided medical care to over 1200 people following a chemical release. She has worked extensively with industry in Southeast Asia, where she has developed strategies for reducing the health and environmental impact of industrial facilities on residential and commercial areas.

Dr. McDaniel received her medical degree from Oklahoma State College of Osteopathic Medicine in 1986. After serving an internship at West Essex General Hospital in Livingston, N.J., and St. Michael's Hospital in Newark, N.J., she returned to Oklahoma, where in 1989 she completed a residency in Occupational Medicine at the University of Oklahoma. During her residency, Dr. McDaniel completed a Masters in Public Health at the University of Oklahoma. She obtained a law degree from the University of Tulsa in 1976 after receiving a B.S. in Journalism in 1971.


Dr. Chuck Lambert, Principal and Senior Scientist
Charles Lambert is principal toxicologist and a risk and crisis communication specialist for Intrinsik. Dr. Lambert brings over 25 years of experience in risk assessment, risk communication, Proposition 65 evaluation, litigation support, product safety, and occupational toxicology. He assists clients with strategic preparation, project management, and evaluation of chemical toxicity for risk assessment and human health hazard evaluation projects.

Dr. Lambert is also involved in developing crisis response and risk communication strategies for industrial facilities in both the United States and overseas. He is an assistant clinical professor in the Department of Community and Environmental Medicine at the University of California, Irvine. His technical and communication expertise together with his extensive experience give him a broad perspective on the complex issues involved in the analysis of human health hazards.

Dr. Lambert has managed many high profile health and ecological risk assessments, all of which have required a significant commitment to the principles and practice of risk communication. He has worked extensively with various agencies, including the USEPA, Cal-EPA Department of Toxic Substances Control, California Office of Environmental Health Hazard Assessment, California Department of Health Services, the Bureau of Land Management, and a number of Air Pollution Control Districts.

Dr. Lambert received a PhD in Toxicology and Pharmacology from the University of California, Irvine, in 1987, and is a Diplomat of the American Board of Toxicology. He also holds bachelor’s degrees in Chemistry and Biology.

Kathleen Poortinga, MPH, Epidemiologist
Kathleen Poortinga is an epidemiologist with an interdisciplinary background in environmental sciences and epidemiology.  She is also a data enthusiast with advanced skills in data management and analysis using tools such as SAS, R, Microsoft Access, and Excel.  Ms. Poortinga manages and provides key technical direction on a variety of health assessment projects, including survey design, health impact assessment, and the statistical analysis of health data.

At Intrinsik, Ms. Poortinga has conducted a number of systematic reviews and meta-analyses on occupational and environmental health issues.  Systematic review projects include a meta-analysis to determine whether employment as a firefighter is associated with an increased risk of chronic obstructive pulmonary disease, and a meta-analysis of nitrogen dioxide inhalation studies to determine a NO2 exposure that causes health impacts in a healthy worker population.  Ms. Poortinga’s epidemiology experience also includes conducting several cross-sectional analyses utilizing data on the occurrence of drinking water contaminants, including: studying the association between fluoride in drinking water and the prevalence of dental fluorosis, and examining the association between exposure to lead in drinking water and measures of environmental justice.  She completed an epidemiological study on the acceptance of HIV screening among adolescents in Washington, D.C. for the National Children’s Medical Center.    At Intrinsik, Kathleen also completes human health and ecological risk assessments, and has used computer programming skills to develop automated processes for performing risk calculations.
Kathleen received her BS in Mathematics with a minor in Art History from Vanderbilt University, then pursued her Master’s in Public Health with a specialization in Epidemiology from George Washington University.

Dr. Glenn Ferguson, Vice President and Senior Scientist

Dr. Glenn Ferguson is the Vice President – Eastern Region and a Senior Scientist for Intrinsik Environmental Sciences Inc. with more than 20 years of experience in the areas of toxicology, epidemiology, human health risk assessment, and risk communication.  During this time, his duties have involved project management, public consultation and technical scientific lead on large variety of environmental and human health projects.  These include managing and serving as the technical lead for all phases of risk assessment projects related to new petroleum refineries, electrical power generation facilities, community-based risk assessments, occupational health issues, contaminated industrial and residential sites, smelter and incinerator emissions, landfills, rail corridors, highways, major airports, abandoned mine sites, fuel oil spills, microbial risk assessment, and drinking water contamination.

Christine Moore, Senior Scientist
Ms. Moore has over 20 years’ experience in the fields of toxicology and risk assessment and is a Senior Scientist in Eastern Canada. Over the past eight years she has overseen multiple high profile community-based human and ecological risk assessments of metals contaminated sites and areas potentially affected by airborne industrial emissions.  In addition to the assessments of legacy issues associated with historic industrial operations, Ms. Moore has extensive experience in characterizing ecological and human health risks associated with proposed new facilities, through the Environmental Impact Assessment process. Ms. Moore also conducts studies in the occupational health area, focusing on toxicological reviews of various substances, as well as the development of a risk ranking system for worker exposures.  Over the past 20 years her work has included evaluations of a variety of different substances, including criteria air contaminants, metals in the environment, chlorinated dioxins and furans, petroleum hydrocarbons and volatile organic compounds.  Ms. Moore has also provided extensive support to legal counsel on environmental issues related to historic contamination cases.  Much of her project work has involved extensive public consultation, development of public consultation strategies and plans with respect to communicating complex scientific issues to communities.


Intrinsik's Occupational and Environmental Medicine Group is supported by more than 60 scientific professionals, including biologists, toxicologist, epidemiologists, statisticians, and exposure modellers, as well as our network of associates which can provide project support where very specialized skills and expertise are needed.

For further information on the experience and expertise of our Occupational and Environmental Medicine Group, please contact either Dr. Glenn Ferguson or Dr. Mary McDaniel.