Occupational Toxicology Expert Witnesses: 8

Dr. Michael L. Dourson has a PhD in Toxicology from the University of Cincinnati, College of Medicine, and is a board-certified toxicologist (i.e., DABT) with over 40 years of experience in Environmental Risk Assessment. 

Dr. Dourson serves as President/Director of the 501c3 nonprofit organization Toxicology Excellence for Risk Assessment (TERA). Prior to this, he was Senior Advisor in the Office of the Administrator at the US EPA. Before this, he was a Professor in the Risk Science Center at the University of Cincinnati, College of Medicine and also worked at TERA and US EPA. 

Litigation Support - Dr. Dourson's specialized knowledge of the issues and pitfalls involved in the research and development of human health risk assessments along with his cutting-edge toxicology expertise allows him to provide state-of-the-art science assessments for attorneys representing plaintiff and defense. 

Services:

• Review toxicity data to assist in determining whether an exposure was the proximate cause of health effects;
• Perform literature searches and providing written critical analysis of literature;
• Provide services related to expert witness opinions and testimony;
• Review and analyzing environmental monitoring data;
• Assist with the development of exposure and medical monitoring programs; and
• Plan and manage peer review and peer consultation programs.

Areas of Expertise:

RfD Assessments RfD Risk Technology Toxicology Reviews Occupational Toxicology Screening Assessments Product Assessments Site Assessments PFAs

Safe Dose Environmental Regulations Research and Methods Development Quantitative Risk Assessment Mode of Action Analysis Emerging Risk Issues Green Chemistry Pharmaceutical Safety

Dr. Dourson has been awarded the Arnold J. Lehman award from the Society of Toxicology, the International Achievement Award by the International Society of Regulatory Toxicology and Pharmacology, and 4 bronze medals from the U.S. Environmental Protection Agency. He has been elected as a Fellow of the Academy of Toxicological Sciences (i.e., FATS) and as a Fellow for the Society for Risk Analysis (i.e., FSRA).

He is the co-author of 3 Patty’s Toxicology chapters on PFAS chemistries and the co-author of 6 research papers on PFOA, two of which have won paper of the year awards from the Society of Toxicology’s Regulatory and Safety Evaluation Specialty Section.

Dr. William R. Sawyer  is a Professional Toxicologist with a doctorate in toxicology from Indiana University School of Medicine. He has over 34 years of extensive experience in Public Health and Forensic Toxicology with specialized expertise in causation analyses (plaintiff and defendant) including Alcohol toxicology, Drugs-of-Abuse, Pharmaceuticals, Herbal Products, Dioxins, Solvents, Heavy Metals, Crude Oil and other Chemicals. Dr. Sawyer has testified in trial or deposition in over 30 states including NY, MA, CT, PA, RI, NH, DE, NJ, WV, VA, NC, SC, GA, FL, AL, MS, LA, AR, MO, KY, IN, IL, WI, MI, OH, MN, MT, WA, CA, TX, OK. 

As a skilled scientist and communicator in the area of toxic tort, Dr. Sawyer provides services to governmental agencies, corporations, select plaintiffs or defendants. Dr. Sawyer currently serves as Chief Toxicologist for TCAS, LLC, and served for 23 years as an Assistant Professor (adjunct) with the Department of Medicine, Upstate Medical University, Syracuse, New York. Dr. Sawyer also has approximately 14 years experience as a licensed clinical and environmental laboratory director in several states. 

 

Lisa Myers interviews Dr. Sawyer on NBC Nightly News

TCAS Services and Expertise:

Alcohol Toxicology Analytical Testing Asbestos Toxicology Birth Defects Carcinogenesis Causation Assessments Chemical Toxicology Carbon Monoxide

Dioxin Toxicology Forensic Chemistry Forensic Toxicology Laboratory Services Mass Toxic Tort Medical Malpractice - Pharmaceuticals Petroleum Toxicology Forensic Source ID

Qualifications & Experience

• Academic Affiliations- Medical School Faculty (adjunct)
• Government Experience - Public Health Toxicologist
• Toxic Tort Causation / Determination - Defense, Plaintiff
• Experienced Clinical and Environmental Laboratory Director
• Considerable Experience with Mass Toxic Torts

View Dr. William Sawyer's Consulting Profile.

Ted W. Simon, PhD, DABT, is an award winning Environmental Toxicologist and Scientist. His expertise is in toxicology, risk assessment, mathematical modeling, statistics, neuroscience, and environmental / ecological health issues.

Dr. Simon has over 10 years of experience as a toxicologist employed by the Environmental Protection Agency (EPA). He served as EPA’s senior toxicologist in the waste management division working on risk and soil cleanup.

Teaching Experience - Since 2001, Dr. Simon has served as an Instructor / Adjunct Professor in the Department of Environmental Health Science, College of Public Health, at the University of Georgia.

Public Speaker - Well published, including the author of a textbook on toxicology and environmental risk assessment, Dr. Simon has extensive national and international public speaking experience. Since 1996, he has been delivering seminars and lectures to universities and national institutes on many subjects within his area of expertise. In 2016, he delivered a lectures on “Bayesian Methods for Application of Uncertainty Factors,” to the Society of Toxicology Annual Meeting, New Orleans, LA, and “Quantitative Prediction of Phenotypic Change from High Throughput Assay Results,” to the EPA's Workshop on In Vitro to In Vivo Extrapolation, Research Triangle Park, NC.

Litigation Support - Dr. Simon has over 15 years of experience offering expert witness services to counsel representing both plaintiff and defendant. He has been retained over 20 times since 2000 for cases involving environmental risk, drug and alcohol cases, DUI, accidental poisoning, and intellectual property. Dr. Simon has particular expertise in dioxin-like chemicals and polychlorinated biphenyls (PCBs). His services include consulting, reports, deposition, and trial testimony when necessary.

Areas of Expertise:

Dioxins PCBs Drugs Alcohol Poisoning DUI / DWI Water Contamination Soil Contamination Environmental Risk Assessment

Environmental Toxicology Carcinogenicity Food Contamination Pesticides Fracking Lead Marijuana Polychlorinated Biphenyls Intellectual Property

Nancy M. McClellan, MPH, CIH, CHMM, is an award winning, Industrial Hygiene and Safety expert with over 25 years of broad international experience practicing, teaching and authoring to anticipate, recognize, evaluate, control and prevent workplace health and safety hazards in high hazard industries.

 Prior to her independent expert and consulting practice, Ms. McClellan practiced industrial hygiene management as a Board Certified Industrial Hygienist on a global scale for both AbbVie, a major producer of highly potent biopharmaceuticals and LafargeHolcim, the world’s largest building materials corporation.

She currently provides industrial hygiene and safety legal expert, management, training, and select field services to sectors such as the pharmaceutical, automotive, military, hospital, electronic, food, chemical, and commercial real estate industries. 

She is the Chair of the University of Michigan Graduate School of Public Health COHSE External Advisory Board and an international AIHA Distinguished expert lecturer.

Ms. McClellan is domestically and internationally recognized for leadership service to the IH profession for the American Industrial Hygiene Association (AIHA), the American Board of Industrial Hygiene (ABIH), the Occupational Hygiene Training Association (OHTA) and the Joint Industrial Hygiene Ethics Education (JIHEEC) Boards of Directors and Committees. She currently serves on the AIHA Executive Board of Directors.

As a result of her well-practiced ability to describe science in lay terms, Ms. McClellan was interviewed in October 2020 on the ABC Network’s Good Morning America program regarding Covid pandemic controls, as well as a number of ABC News and professional journal articles regarding the association between HVAC systems, Indoor Air Quality and the Covid pandemic to advance public and worker health protections.

Ms. McClellan has extensive expertise in Pandemic, Covid-19 Response Management, including chemical and non-chemical disinfectant exposure evaluation and real estate/facility controls.

Good Morning America Pandemic / Indoor Air Interview 

Litigation Support Goal - Nancy McClellan seeks to continue a 50/50 defense/plaintiff practice that presents challenging cases determining worker and/or public exposure to chemical, biological, physical or ergonomic hazards. Her services include thorough review, reporting, depositions, and trial testimony.

Areas of Expertise:

• Chemical and biological airborne and dermal exposure assessment and modeling
• Bioaerosol Assessment and Pandemic Control Programs 
• Indoor Air Quality and Air disinfection Technologies Evaluation
• H&S Policy and Program Development and Audits
• Highly Potent Compound Containment 
• Workplace Hazard Risk and Exposure Assessment 
• USP 800 Safe Hazardous Drug Handling Conformance
• Hearing Conservation Program Development and Controls
• Respiratory Protection Evaluation and Program Development
• Worksite Ergonomic Evaluation and Controls

View Nancy McClellan's Consulting Profile.

Howard M. Kipen MD, MPH, is Board certified in Internal Medicine and Occupational Medicine. Dr. Kipen earned a BA from UC Berkeley, MD from UCSF, and MPH from Columbia University. He currently serves as Director of the Clinical Research and Occupational Medicine Division and Professor of Environmental and Occupational Health at Rutgers University. Dr. Kipen’s research focuses on clinical and epidemiological studies of the health effects of Indoor and Ambient Air Pollution. His research uses both controlled exposure models with ozone, fresh aerosols, and diesel-enriched on-road exposures, primarily with drives on the New Jersey Turnpike. A new EPA study examines health benefits of portable air cleaners for reducing indoor air pollution levels. Biomarker outcomes presently emphasized are exhaled breath oxidative stress and invasive and noninvasive measures of vascular function. Dr. Kipen has published morethan 200 articles on environmental / occupational health. Scholarly Activities:

• Former Chair, NASA Human Research Program’s Advanced Environmental Health / Advanced Food Technology Standing Review Panel
• Member, National Academies Standing Committee on Medical and Epidemiological Aspects of Air Pollution on U.S. Government Employees and their Families, 2016
• Chair / Member Multiple Ad Hoc Grant Review Panels (e.g., NIEHS, Department of Defense)
• Governor’s Appointee, Public Employee’s Occupational Safety and Health Review Commission, New Jersey Department of Labor
• Member, Public Health Scientific Advisory Board, New Jersey Department of Environmental Protection

Litigation Support: Dr. Kipen has 35 years of litigation experience. He has expertise in various Toxic Torts including asbestos, benzene, mold, air pollution, occupational and environmental cancers, and other diseases. He also has expertise on "Multiple Chemical Sensitivities" (MCS). Dr. Kipen has particular experience as an asbestos plaintiff's expert and both plaintiff and defense experience with other toxic torts. His services include medical record review, thorough reporting, depositions, and trial testimony as needed.

Ernest P. Chiodo, M.D., J.D., M.P.H., M.S., C.I.H. is a physician, attorney, Certified Industrial Hygienist (C.I.H), and biomedical engineer. Dr. Chiodo is board certified in the specialties of Internal Medicine, Occupational and Environmental Medicine, and Public Health and General Preventive Medicine. Dr. Chiodo served as the Medical Director of the City of Detroit and was the chief physician in charge of measures designed to protect the public health of over one million persons. He has also been the lead expert witness in a number of high profile cases including serving as the lead expert witness in a mass toxic tort case for Gerry Spence.

Areas of Expertise:

Toxicology

Epidemiology

Industrial Hygiene

Mold

Asbestos

Benzene

Biomedical Engineering

Accident Reconstruction

Electrocution

Building Related Disease

Biomechanics

Bed Bugs

Dr. Shaun Anthony Crawford, CIH, has a diverse 30+ year background in environmental health, safety and industrial hygiene consulting and litigation support, spanning government, industry, academics, residential and non-profit sectors. He holds a MSPH in Environmental Engineering / Industrial Hygiene and a Doctorate in Environmental Health Sciences with a specialization in industrial hygiene, both from the University of Alabama at Birmingham.

Dr. Crawford has held academic positions in Environmental Management, Urban Environmental Studies, and Environmental Health at three universities. He has a very successful business and litigation track record and is available for both plaintiff and defense representation.

Vapor Emissions from Building Materials Mold Contamination and Remediation Metals and Bacteria in Wastewater Construction Runoff and Sedimentation Pipeline Rupture

Superfund Communities Industrial Contamination PCBs AFFF / PFCs Aerosol Exposure and Lung Damage

For additional information, please consult Dr. Crawford's resume.

Stanley C. Haimes, MD, MPH, CIH, FACOEM, is board certified in Occupational Medicine and has extensive experience in travel medicine, medical surveillance, drug testing, and wellness programs for companies of all sizes.

Dr. Haimes is also a Certified Industrial Hygienist (CIH), Certified Safety Professional (CSP), Medical Officer for OSHA, and Member of the national committee that determines safe exposure levels to chemicals in the workplace. He is highly qualified to analyze workplace conditions ranging from Air Quality and Bio-hazard Risks to Noise Pollution and Work Site Ergonomics.

Background - For 10 years, Dr. Haimes served as the medical director for Lockheed Martin, where he developed their travel medicine program, performed travel clearance and immunizations for 30 international destinations, and reduced their Workers’ Compensation costs by 75 percent. He also served as the medical director for the National Science Foundations’ Antarctic Program, providing medical clearance for destinations like the South Pole.

A high-profile member of the occupational medicine community, Dr. Haimes has written numerous medical surveillance guidelines for the OSHA. He also serves on a number of national committees responsible for establishing the medical criteria for emergency personnel on behalf of the National Fire Protection Association and the International Association of Chiefs of Police.

Litigation Support - Dr. Haimes provides expert witness services for Cases involving Occupational Medicine and Medical Toxicology. His services are available to attorneys representing plaintiff and defendant and include medical record review, depositions, and trial testimony.

Areas of Expertise:

Occupational Medicine Toxicology Exposure Evaluation Disability Evaluation Return to Duty

Fit for Duty Worker's Compensation Complex Causation Firefighter Medical Employment Criteria Law Enforcement Medical Employment Criteria