Industrial Hygiene / Pollution / Pretreatment Expert Witnesses: 16

Dr. William R. Sawyer  is a Professional Toxicologist with a doctorate in toxicology from Indiana University School of Medicine. He has over 33 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:

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.

Robin D. Franks, PG, CHMM, RSO has over 25 years of relevant industry experience as a professional Geoscientist / Geologist and Certified Hazardous Materials Manager. President and TGE Resources, Inc., she offers environmental due diligence, industrial hygiene, environmental compliance auditing, and remediation management of affected real property services. Ms. Franks provides litigation support and client representation with regard to environmental matters. She has been actively involved in more than 35 "merger/acquisition" projects encompassing over 750 sites nationwide. As senior Technical Advisor, she has been involved in thousands of real property investigations, many of which have involved remediation/closure projects within Texas and throughout the United States. Areas of Expertise:

• Real Estate Assessments - Environmental Due Diligence
• Environmental Compliance Audits
• Remediation Management, Corrective Action (Clean-up) Consulting of Contaminated Real Estate
• Risk-Based Closure
• Hazardous, Solid Waste Materials Management, Clean-up Consulting of Affected Property
• Asbestos, Lead-Based Paint, Mold/Fungal, Industrial Hygiene
• Radiation Safety (NORM)
• Petroleum Storage Tank (PST) Management, Compliance, Corrective Action
• Environmental Testing, Clean-up Consulting

View Dr. Franks' Consulting Profile.

Dr. J. P. Purswell, PhD, PE, CPE has extensive experience in Human Factors, Ergonomics and Safety Engineering. He holds a doctorate in Industrial & Systems Engineering from Virginia Tech. He has taught Safety Engineering Ergonomics in the Industrial Engineering Department at CSU-Pueblo since 1999. 

A member of the Human Factors and Ergonomics Society and the American Industrial Hygiene Association, Dr. Purswell also served as the Chair of the Industrial Engineers PE exam from 2005 to 2009. He continues to serve on the committee which is responsible for the preparation of the national professional engineering examination in industrial engineering. 

Dr. Purswell is the author of more than 20 publications and presentations on Product Safety, Occupational Safety, Printed Warnings, and Auditory Warnings. Examples of products addressed include silica, asbestos, cleaning chemicals, gasoline containers, and recreational equipment. Dr. Purswell maintains NIST-calibrated equipment for the measurement of light, sound, force, and whole-body and hand-arm vibration in addition to standard photo and video equipment. 

Litigation Support - An Expert Witness in the legal industry since 1997, Dr. Purswell has been qualified as an expert in state and federal courts across the nation in safety engineering, including safety analysis techniques such as Fault Tree Analysis and FMEA as well as product warnings / instructions and OSHA compliance issues. His services include site inspections, document review, drafting Rule 26-compliant reports, deposition, and trial testimony. He has been retained by attorneys for both Plaintiff (40%) and Defense (60%) more than 100 times, has been deposed approximately 50 times, and has testified at trial over 20 times. 

Areas of Expertise:

View Dr. Purswell's Consulting Profile.

Page Engineering is a professional consulting firm that combines Ergonomics, Industrial Engineering, and Health and Safety expertise. They have served industry leaders in the areas of Transportation, Shipping, Manufacturing, and Health Care throughout the United States and Canada. Established in 1994, their approach is bolstered by years of litigation scrutiny and backed by extensive application of ergonomics, human factors, epidemiologic, and occupational medical scientific literature. They specialize in human factors and ergonomics assessments, including both acute and cumulative exposures and their hands-on approach is backed by extensive research and measurement of actual work exposure to occupational physical factors and workplace design.

Litigation Support - The professionals at Page Engineering provide forensic engineering and root cause analysis expert witness services to counsel representing both Plaintiff and Defense. Their areas of expertise include:

George B. Page, CPE, is a Certified Professional Ergonomist. Since founding Page Engineering, Mr. Page has been providing ergonomics services, integrating multiple disciplines (industrial engineering, safety, health, business, regulatory) to provide effective results, whether in the application of job analyses and job improvement processes or in physical job demands analyses. His experience includes conducting ergonomics analyses and research in the railroad industry, primarily, and in heavy industry, in general, for over 30 years. Clients include: Union Pacific Railroad, Kansas City Southern Railways, Association of American Railroads, FedEx, American Petroleum Institute, Food Marketing Institute, Food Distributors International, Blue Water Bridge Authority, USPS. His expertise includes job exposure assessments, physical demands assessments, accident reconstruction, forensic engineering.

Greg G. Weames, CPE, CCPE, CRSP, is a Certified Professional Ergonomist who provides forensic services regarding Musculoskeletal Injury / Disorder Risk and expert testimony. Since joining with Page Engineering, Inc., Mr. Weames has been asked to provide consulting services in ergonomics for over 500 cases involving civil lawsuit work-related injury/disorder claims. With training, education and experience in musculoskeletal injury and musculoskeletal disorder as a focus, he applies generally accepted methodology in his analysis of causation to a reasonable degree of scientific certainty. Mr. Weames has his expert witness experience from within the railroad industry, which includes transportation, construction maintenance, mechanical shop, communications and office environments which support a large variety of jobs and work tasks. Over the past 20 years of providing expert witness services, Mr. Weames has relied on independent, objective measurements of claimed exposures to occupational physical factors and the epidemiologic scientific literature, relevant ergonomics guidelines and standards to support his opinions. Mr. Weames has given depositions and has appeared at jury trials in both State and Federal US Court during his years doing expert witness work.

Stephen D. Fleming, CPE, CXLT, is an Industrial Engineer / Ergonomist whose background includes analyzing work environments and work tasks using industrial engineering work measurement methods and risk assessment models for different body regions. His expertise is in assisting industrial clients in applying ergonomics to workplace processes, tools, and equipment, including all major North American railroads, FedEx, Ford Motor Company, Lear Seating, USPS, and the Blue Water Bridge Authority. Mr. Fleming has been acknowledged for developing and implementing a methodology for measuring and analyzing exposure to whole-body vibration (WBV) and hand-arm vibration (HAV).

View Page Engineering's Consulting Profile.

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.

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.

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 also Chair of the COHSE External Advisory Board at the University of Michigan Graduate School of Public Health, a subject matter expert, and an international expert lecturer.

As a result of combined experience, education, and certifications, 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 - Nancy McClellan seeks to work with clients that present a challenge in determining whether workers and/or the public have been exposed to chemical, biological, physical or ergonomic hazards, and are willing to objectively and collaboratively explore and investigate the scientific possibilities. Her services include thorough reporting, depositions, and trial testimony as needed.

Areas of Expertise:

• Covid-19 Response Management  
• Biohazard Assessment and Pandemic Control Programs 
• Air and Surface Disinfection Evaluation and Controls
• 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.

The experts at Miller Engineering are Ann Arbor-based professional engineers celebrating 30 years of service to University, Government, Insurance, and Industry through research, publications, presentations, and testimony. Miller Engineering has a staff of engineers and experts in the Mechanical, Chemical, Agriculture, Industrial, and Human Factors fields of engineering with specific knowledge in the following areas: 

James M. Miller, PE, PhD – Founder Dr. Miller is an Emeritus Professor at the University of Michigan College of Engineering and a registered professional engineer and consultant with over 30 years of experience as an expert witness. He has served as a consultant to industry and government and is highly qualified to give engineering testimony. Dr. Miller specializes in warnings, labeling and instruction manuals, consumer product design, machine guarding, process safety, fire science, vehicle visibility, tractor egress/ingress, pedestrian and worker slip and fall prevention, recreational vehicles (ATVs, boats, and personal watercraft), compliance with occupational safety and consumer safety standards (OSHA, MSDS, CPSC, ANSI, ASTM, UL, etc.).

Mark R. Lehto, PhD – Co-Founder Dr. Lehto is a Professor of Engineering at Purdue University. He completed his Ph.D. in engineering at the University of Michigan in 1985, where he specialized in Human Factors Engineering, in particular Warnings and Labeling. He has taught courses at Purdue in human and safety factors areas, as well as decision making and artificial intelligence. He has authored numerous professionally-reviewed articles, and he has authored / coauthored internationally-recognized textbooks in the areas of human factors and ergonomics. Dr. Lehto specializes in knowledge engineering, warnings and instructions, structuring expert systems, accident modeling, accident statistical analysis, consumer product safety, boating safety, in-field national surveys of product usage and product information effectiveness.

David R. Clark, PE, PhD – Co-Founder Dr. Clark is an Emeritus Engineering Professor at Kettering University. He was an engineering Ph.D. graduate from the University of Michigan, where he specialized in human factors engineering and system safety analyses. In particular, his earlier degrees in mechanical and electrical areas have given him a special expertise in electrical fire- and explosion-related accidents. Dr. Clark is also published on the topics of warnings and labeling. With considerable in-plant experience at General Motors, he is uniquely qualified to provide student theses and design projects while teaching at Kettering that deal with many types of mechanical and optimization projects. Finally, he has extensive experience working for loss control companies, performing over 150 fire origin and cause investigations in the past few years.

Ronald E. Gots, MD, PhD, DABT, is Board Certified in Toxicology and a Diplomate of the American Board of Toxicology. He has over 30 years of experience as CEO of a successful, highly-regarded biomedical consulting firm dealing with Toxicology, Pharmacology, and Epidemiology.

Dr. Gots has assisted hundreds of clients in analysis, strategy, and testimony in chemical and mold injury claims, regulatory matters, mass tort claims, environmental and workplace exposure issues, and risk communication. 

Dr. Gots has shared his expertise with workers and community groups in dozens of toxic exposure matters across the country. He has been consulted for indoor environmental and air quality assessments for numerous office buildings, schools, and manufacturing facilities. He has lectured at numerous national meetings of claims executives, attorneys, policy makers, and physicians in the fields of medicine and science, toxicology, regulation, and claims resolution. He has testified in congressional subcommittee hearings concerning victim compensation legislation.

Dr. Gots has been honored for outstanding achievement from the AOA Medical Honor Society, Sigma Xi Research Honor Society, and the Society of Toxicology Membership. He is the author of six books, chapters in six books, and more than 70 articles on biochemistry, toxicology, mold and mold toxins in insurance and legal literature.

Litigation Support - Dr. Gots has provided expert witness services nationwide. He provides scientific / medical support in individual tort and mass tort claims, involving a range of biological and chemical agents, as well as pharmaceuticals. With over 100 jury trials, he and his team at the International Center for Toxicology and Medicine offer services including:

•  Mitigating Liability    
•  Managing Complex Mass Tort Data;
•  Preparing Courtroom Presentations;
•  Providing Health Risk Communicating;       
•  Integrating Law, Science, and Medicine;     
•  Performing Regulatory Risk Assessment;
•  Investigating Indoor Environmental Issues.

Areas of Expertise:

Education/Training: AB Chemistry, University of PA; MD, University of PA School of Medicine; Internship, Johns Hopkins University School of Medicine; PhD Pharmacology, University of Southern CA.

Dr. Eric N. Brown, CIH, CSP, is a Certified Industrial Hygienist (CIH) and a Certified Safety Professional (CSP), with both certifications in good standing with the issuing boards. Dr. Brown holds a Doctorate in Public Health with an Industrial Hygiene specialization from the University of California at Los Angeles, and a Master’s degree in Public Health with an Occupational Health specialization from the Medical College of Ohio. He has over 20 years of experience in:

• Mold
• Health and Safety
• Industrial Hygiene
• Indoor Air Quality Exposure Assessments

Litigation Support - Dr. Brown has been a designated expert in hundreds of cases, been and has testified successfully in both trials and arbitrations. His expertise has never been challenged. His services are available to attorneys representing both plaintiff and defendant. 

Areas of Expertise:

For over 40 years, Chuck Dutill, P.E., D.F.E. has been performing Hydrology and Environmental Engineering nationwide. He has focused on wastewater, stormwater, flooding, sewers, septic systems, groundwater, drainage, runoff, hydrology, hydraulics, backups, drinking water, and air quality. 

Litigation Support - Mr. Dutill has spent approximately 30% of his professional time providing expert witness services for over 40 years. Approximately 45 to 50% of his expert witness services have been for defendants and about 50 to 55% for plaintiffs. He has issued 175 to 180 expert reports, been deposed approximately 45 to 50 times, and testified in federal and state court (including jury and non-jury trials) approximately 35 to 40 times. 

Forensic cases have occurred in approximately 35 states. As indicated in feedback from attorneys on expert witness cases, some of his strengths include understandable guidance, responsiveness, timeliness, communication, effective report writing, strong testimony (including on cross), efficiency, organization, and assistance with framing case issues. 

Expertise:

CV Available Upon Request View Mr. Dutill's Consulting Profile.

Toxicology

Epidemiology

Industrial Hygiene

Mold

Asbestos

Benzene

Biomedical Engineering

Accident Reconstruction

Electrocution

Building Related Disease

Biomechanics

Bed Bugs

Envista Forensics is a global leader in Forensic Engineering & Recovery Solutions. They provide Cause & Origin, Failure Analysis, Fire and Explosion Investigations, Accident Reconstruction, Damage Evaluations and Equipment Restoration Services following disasters of all kinds. Envista has offered Consulting Services to the insurance, legal and risk management industries, as well as businesses, public entities, and universities for over 25 years.

Their Experts travel globally from 30 offices located across the U.S., Canada, Mexico, the U.K., Australia and Singapore. Envista's experience counts when equipment, systems, structures, or data have been threatened by catastrophe or litigation. Their experts and advisors determine cause and responsibility, and identify the nature and extent of damage or loss and provide a full range of solutions to protect their assets.

Envista's technical professionals are trusted advisors and industry leaders. Their expertise is broad and deep, capable of withstanding all forms of scrutiny. Envista's services are available globally so that certainty is assured no matter where in the world it is needed. As the recovery from disasters has grown more complex, Envista has developed a comprehensive array of services to help their clients and has associates located around the globe to provide assurance no matter the type of loss or location of the disaster. Envista helps attorneys quickly get to meaningful answers on the many technical issues at the center of a dispute. Their engineers have decades of experience working with both defendants and plaintiffs.

They offer effective Expert Witness Testimony, with the ability to communicate effectively, build rapport with juries and judges, and maintain adherence to structured, methodical approaches in drawing conclusions are all extremely critical. Envista Forensics understands how critical the selection of an expert can be, and we understand what makes experts effective. Their court qualified experts have extensive experience providing expert testimony on a wide variety of engineering and technical matters.

Areas of Expertise:

View Envista's Consulting Profile.

DNA Industrial Hygiene CSLB 773462 1A,HAZ is an occupational/environmental health & safety firm providing comprehensive industrial hygiene/environmental services. Dan Napier is the 'go to' person for help with your health & safety program. if you are a small business or one of the fortune 500's DNA has helped someone like you. whether you need a simple survey for a single issue or a complex benchmark or safety audit they have the experience and expertise to do the work. Mr. Napier provides services to the legal community. please check with him for trial assistance, forensic studies or expert witness services. he has been designated as an expert and has testified in federal and state courts.

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.

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