Intellex Acquires Expert by Big Village

We're thrilled to announce that Intellex has acquired Expert by Big Village, effective March 22, 2024. This strategic move enhances our capabilities and strengthens our commitment to delivering exceptional solutions to our customers.

Stay tuned for more updates on how this acquisition will benefit our clients and experts.

For inquiries or more information, please contact us at


Expert Details

Industrial Hygiene, Diacetyl, Peroxyacetic Acid, Formaldehyde, Asbestos, Ventilation, Regulations, Silica, Workplace & Environmental Noise, Ultrasound, Ultraviolet

ID: 108278 Wisconsin, USA

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Expert has worked as a Senior Industrial Hygienist for over 30 years, during much of that time he was a professor in the field. His extensive knowledge base lends a helping hand as a consultant and expert witness. His passion for the field shows in his work history and is a prime example of how he goes above and beyond in his work. Expert is detail oriented, patient, has excellent communications skills, and is ready to take on any client need.

AIR QUALITY ASSESSMENT; IAQ. Expert has performed air quality sampling and evaluation in both environmental and industrial settings. His ability to collect valid samples has been enhanced by having performed the laboratory analyses during the early part of his career. Quality control is a major emphasis in the industrial hygiene laboratory courses he taught. Results are related to health risks through standards and toxicological data. He has been an expert witness for cases involving the evaluation of employee exposures to hazardous chemicals.

VENTILATION; INDUSTRIAL HYGIENE VENTILATION. Expert has incorporated his research on the effectiveness of ventilation systems to control chemical contaminants in a room into both his consulting recommendations and the course he taught on industrial hygiene (IH) ventilation and noise control. While he does not design ventilation systems, per se, he has assisted clients evaluate their systems, both pre- and post-installation. He also has been an expert witness for cases involving the evaluation of ventilation systems.

NOISE. While he taught both sound level evaluation and noise control, Expert's consulting has been primarily in noise evaluation. He has reduced clients' risk of employee hearing loss through exposure measurement, hearing conservation program review, and worker compensation claim evaluation. He also has been an expert witness for cases involving the evaluation of environmental noise.

MATERIAL SAFETY DATA SHEETS. Expert has written MSDSs for products of several companies. In addition, he has advised companies on the changes in the DOT regulations for hazardous materials, and determined the proper classification, labeling, and placarding for their product lines. He has also worked as an expert witness regarding the adequacy of warnings.

ASBESTOS ENVIRONMENTAL EFFECT; ASBESTOS HUMAN HEALTH EFFECT; ANTI-ASBESTOS PERSONAL PROTECTION EQUIPMENT. Expert has assisted building owners in managing their asbestos-containing material. His positions have included project designer, project supervisor (as a building owner's representative), and air quality specialist. He has taught the certification courses for project designer, project supervisor, asbestos worker, and asbestos sampling (NIOSH 582). He also has been an expert witness for asbestos-related cases. Expert can answer in-depth questions regarding asbestos monitoring equipment and asbestos personal protection equipment.

REGULATIONS. Expert taught and provides consulting services for numerous regulations, including 29 CFR (OSHA) Industrial Hygiene-related sections, 49 CFR (DOT) Hazardous Materials Transport (106-180), and 40 CFR (EPA) Hazardous Waste sections (260-299). In addition, he uses ACGIH, ASHRAE, ASTM, and AIHA standards and guidelines to develop his recommendations.


Year Degree Subject Institution
Year: 1994 Degree: PhD Subject: Environmental Health Institution: University of Minnesota
Year: 1979 Degree: MPH Subject: Environmental Health Institution: University of Minnesota
Year: 1974 Degree: MS Subject: Food Science Institution: University of Minnesota
Year: 1972 Degree: BS Subject: Chemistry Institution: Macalester College

Work History

Years Employer Title Department
Years: 1986 to Present Employer: Undisclosed Title: Senior Industrial Hygienist Department:
Provide industrial hygiene consulting services including evaluations of worker exposures to gases, vapors, aerosols, noise, and UV-light, ventilation system evaluations, industrial hygiene assessments for safety audits, Material Safety Data Sheet development, hazardous waste management, worker training, environmental noise evaluation, hazardous materials DOT assessment, expert witness, and seminars.
Years Employer Title Department
Years: 1983 to 2013 Employer: University of Wisconsin Title: Professor Department: Chemistry
Conducted research on the health hazards and employee exposures to diacetyl and 2,3-pentanedione, crystalline silica, direct reading dust measurements, ultrasonic radiation, ultraviolet light, hydrogen peroxide, ventilation effectiveness, welding fume,

Advanced the industrial hygiene curriculum at UW-Stout to include General Industrial Hygiene, Industrial Hygiene Instrumentation, Environmental Regulations Management, Hazardous Waste Management, and Industrial Hygiene Ventilation and Noise Control, and established a Graduate Studies Minor in Industrial Hygiene.
Years Employer Title Department
Years: 1981 to 1983 Employer: Hazleton Labs of America Title: Staff Scientist, Director of Industrial Hygiene Laboratory Department:
Established an AIHA Accredited Industrial Hygiene laboratory.

Directed the health and safety program for the National Toxicology Program studies at Hazleton Laboratories.

Conducted research on formaldehyde emissions from consumer products and pesticide concentrations in food products.
Years Employer Title Department
Years: 1978 to 1981 Employer: University of Minnesota Title: Research Associate, Industrial Hygiene Department:
Conducted research on the health hazards and employee exposures to environmental emissions from a coal gasifier, bacterial populations in caviar, and water quality issues of dredging operations.

Career Accomplishments

Associations / Societies
Member of:
American Industrial Hygiene Association
American Conference of Governmental Industrial Hygienists
Semiconductor Safety Association
American Society of Heating, Refrigerating and Air Conditioning Engineers
Beryllium Consultant Network
Licenses / Certifications
Expert is a Certified Industrial Hygienist in both Chemical Aspects and Comprehensive Practice for the American Board of Industrial Hygiene.

Additional Experience

Vendor Selection
Expert has experience locating vendors of industrial hygiene sampling and analysis and ventilation and air cleaning systems.

He has access to the following resources: printed materials and personal contacts.
Marketing Experience
Expert has provided industrial hygiene consulting services to clients including manufacturing (e.g. semiconductor, pulp & paper, plastics, & food products), governmental services, and construction. His Food Science training has provided insights for assisting food manufacturers evaluate and reduce worker exposures to hazards.

Fields of Expertise

air sampling, anti-asbestos personal protection equipment, asbestos, asbestos environmental effect, asbestos human health effect, asbestos monitoring equipment, industrial hygiene, industrial ventilation, materials safety data sheet, noise, noise control, ventilation, environmental compliance, environmental monitoring, Hazard Communication Standard, industrial acoustic noise measurement, air-quality monitoring, industrial air quality, noise measurement, machine noise, monitoring, noise pollution, personnel air monitoring, Environmental Protection Agency compliance, sound level, noise induced hearing loss, building ventilation, personal hygiene, heating, ventilation, air conditioning, and refrigeration, communtiy noise, construction noise pollution, building noise control, DOT regulation, building heating system, noise control equipment, air-cleaning system, environmental air quality, environmental safety, environmental air sampling, environmental air sample, environmental water sampling, environmental sampling, hazardous material transportation, ventilation system, asbestos-related equipment, personal protection equipment, in-plant fume control, in-plant dust control, sick building syndrome, hazardous-waste characterization, hazardous waste analysis instrument, hazardous material handling, waste disposal statute, hazardous-waste management, pulp-and-paper environmental control, asbestos sampling equipment, indoor air filtration, environmental laboratory, gas analysis, environmental testing, dust particle, actinolite, building-related disease, hexane environmental effect, hazardous material, amosite, chrysotile, serpentine asbestos, chemical compound, acoustic noise, transportation code, toxic material handling, toxic chemical human health effect, toxic chemical safety code, Occupational Safety and Health Administration regulation, noise level safety code, industrial noise control, indoor air quality, indoor air pollution control, indoor air modeling, hygiene, human noise safety level, fume control, decibel, crocidolite, containment, chemical safety, carcinogen, asbestos safety, amphibole asbestos, air quality, air pollutant

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