Industrial Hygiene / Pollution / Pretreatment Expert Witnesses: 12

I bring diverse, combined education, licensing, and credentialing in geology, biology, and hazardous materials management. Indoor air quality as related to asbestos, mold, lead, building hazards, vapor intrusion, OSHA worker and occupant complaints.

I manage a firm of environmental and industrial hygiene professionals while serving as an expert in my diverse field; I have over 70 retained cases complete. I can cost effectively support engagements that may require extensive data gathering across an expanded time frame. I apply my capabilities and credentials across commercial, industrial, and oil & gas settings, with a technical focus on highly regulated industry and real estate.

I have been steadily retained for expert witness services since 1995.

I specialize in structural fire forensic investigation and testing, routinely leverage post-flood emergency response expertise in buildings, specific to microbial disinfection, mold mitigation, and source mold under forensic methods of investigation that may exist under alleged building construction defects. I possess expertise in building systems and mitigating hazards from structures in advance of demolition for asbestos, lead, and other regulated materials.  I prepare, implement (and/or critically review) asbestos specifications, mold remediation protocols, OSHA-driven lead specifications, and remediation soil management plans.

I have evaluated diverse workplaces following loss reports due to alleged safety and public health concerns and offered mitigation strategies for worker safety under OSHA complaints, especially regarding respiratory protection. I have served as an expert for multiple worker injury and wrongful death allegations within the context of environmental exposure.  

View Ms. 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 and 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, and 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 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 that 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 courts 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.

 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.

The four PhD and registered PEs at Miller Engineering are celebrating 40 years of Professorships at three universities along with providing services to Government, Insurance, and Industry—through research, publications, presentations, and expert testimony. We have a dedicated office with a full time staff of engineers, researchers, and technical writers. The span of our collective academic and experiential expertise covers well the Mechanical, Electrical, Chemical, Agricultural, Industrial, Human Factors, Ergonomic and Safety fields of engineering. The areas listed below are from actual projects completed in our 40 years of history. 

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 in both trials and arbitrations. His expertise has never been successfully challenged. His services are available to attorneys representing both plaintiff and defendant. 

Areas of Expertise:

For over 45 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 40% of his professional time providing expert witness services for over 45 years. Approximately 45% of his expert witness services have been for defendants and approximately 55% for plaintiffs. He has issued 210 to 215 expert reports, been deposed 50 to 55 times, and testified in federal and state court (including jury and non-jury trials) 40 to 45 times. 

Forensic cases have occurred in 40 to 45 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.