Jennifer Sahmel, PhD, CIH, CSP, FAIHA

Founder and Managing Principal Scientist

Jenn is a certified industrial hygienist, a certified safety professional, a Fellow of the American Industrial Hygiene Association (FAIHA), and a Research Fellow of the Exposure Science and Sustainability Institute at the University of Minnesota, with over 20 years of experience in human health risk assessment and workplace health and safety. 


She has significant experience in exposure assessment practice and methodologies, exposure reconstruction, health risk decision making, OSHA regulatory issues, and safety management systems.


Jenn's  areas of expertise include comprehensive exposure and risk assessment strategies, exposure reconstruction, qualitative and quantitative dermal exposure assessment methods, industrial hygiene state of knowledge, Bayesian decision analysis, U.S. EPA exposure assessment tools, Proposition 65 health risk assessment, product stewardship and sustainability issues, industrial hygiene monitoring and data analysis, safety and occupational health management methods, and safety leadership. 


Jenn has been involved in characterizing exposure to a variety of chemicals and products for both occupational and consumer product exposure scenarios in a variety of circumstances including for government, academia, law firms, non-profit associations, and private companies. These substances include asbestos, talc, solvents, benzene, gasoline, flame retardants, wood dust, phthalates, lead, beryllium, silica, vinyl chloride, paints/coatings, boiler water treatments, organic solvents, abrasive blasting agents, mercury, arsenic, carbon monoxide, and others.

Heather Avens, PhD, MS, CIH

Managing Health and Safety Scientist

Dr. Heather Avens is a Managing Health and Safety Scientist with over nine years of experience in human health risk assessment. She is a Certified Industrial Hygienist with a PhD and MS in chemical engineering and a BA in biochemistry and molecular, cellular, and developmental biology.


Heather's primary areas of expertise includes industrial hygiene, exposure assessment, quantitative exposure reconstruction, indoor exposure modeling, outdoor air dispersion modeling, dermal exposure modeling, accident analysis, probabilistic techniques, and data analysis. She is also skilled at designing, conducting and analyzing exposure simulation studies.


She has estimated exposure and risk associated with a variety of substances including asbestos, solvents, gasoline, benzene, polyaromatic hydrocarbons, asphalt, hydrogen sulfide, styrene, lead, cadmium, and phosphorous.


Heather has used her expertise to address a variety of exposure scenarios including occupational exposures, consumer use of products, exposures to bystanders, take-home exposures experienced by household contacts of workers, community exposures, industrial accidents, explosions, and spills.

Amber Banducci, MPH

Senior Health and Safety Scientist

Amber is a health scientist with a Master’s of Public Health degree, and a BA in Integrative Physiology and Ecology and Evolutionary Biology.  Her academic training includes epidemiology, biostatistics, environmental and occupational health, public health policy and law, immunology, human physiology, and endocrinology.


Amber has experience in exposure and risk assessment, U.S. health and safety regulatory issues, and data analysis. She also has experience performing exposure and risk assessments for consumer products regarding Proposition 65 and other regulatory compliance.


Amber’s work has included evaluating exposures, risks, and/or regulations in occupational and consumer use scenarios for cosmetic talc, asbestos, vinyl chloride, benzene, and heavy metals in various products and settings. Some of her research has included potential exposures associated with historical use of cosmetic talc, heavy metal exposure from the consumption of apple juice, and BTEX exposures associated with hydraulic fracturing and crude oil cleanup operations.

Abigail McEwen, MEM

Health and Safety Scientist

Abby is a Health and Safety Scientist with over five years of experience in human health risk assessment. She has a Master of Environmental Management (MEM) with a focus in environmental chemistry from Duke University, and a BS in Integrative Biology from University of Illinois. Her primary areas of training and expertise include risk assessment, exposure science, industrial hygiene, toxicology, and environmental chemistry.

Abby has experience estimating exposure and risk associated with chemicals in environmental, occupational, and consumer settings. She has performed quantitative risk and exposure assessments for a variety of substances, including asbestos, formaldehyde, metals, benzene, and flavorings/fragrance compounds. Her research has included evaluating potentials exposures to heavy metals associated with building materials in a former mining town, formaldehyde in urban office workers, talc during application of cosmetic powder products, and glyphosate during consumer pesticide application. Additionally, she has assisted with the design, execution, and analysis of several exposure simulation studies.

Zoe Philip, MPH

Health and Safety Scientist

Zoe is a Health and Safety Scientist with a Master’s in Public Health from Emory University, focusing on global health and maternal and child health. Her graduate level research focused on studying the intersection of psychiatry and sexual and reproductive health of women living with severe mental illness. She hopes to bring her expertise to support various environmental health concerns for women and children in the U.S. She also holds a B.A. in Economics. Her training includes environmental economics, biostatistics, and environmental health.

Zoe previously worked for a government consulting contractor, primarily in support of national-level environmental projects under the EPA’s Office of Pollution Prevention and Toxics. The bulk of her work focused on cost-benefit analyses for EPA regulatory options for toxic chemicals, such as long chain perfluorinated chemicals, mercury, lead in paint and lead in wheel weights. She also has experience in research and project management through various other health-focused organizations, including in hospital/ clinic settings, a global humanitarian organization, and a big data registry and research institute.

Tyler Ferracini, MS, CIH

Senior Health and Safety Scientist

Tyler is a Senior Health and Safety Scientist with over 12 years of experience in exposure and risk assessment. He is a Certified Industrial Hygienist with a MS in Toxicology and a BS in Environmental Health and Radiological Science. His primary academic training and areas of expertise include toxicology, industrial hygiene, exposure and risk assessment, biostatistics, occupational/workplace health and safety, and epidemiology.

Tyler has experience in exposure and risk assessments associated with occupational settings and consumer products. Further, he is knowledgeable in areas regarding product stewardship and sustainability practices, industrial hygiene monitoring and data analysis, and regulatory compliance.

Tyler’s work has included evaluating exposures, risks, and/or regulations in occupational and consumer use scenarios for a variety of chemicals including but not limited to asbestos, talc, trichloroethylene (TCE), silica, formaldehyde, benzene, diacetyl, fly ash, and foundry dust. His research has included potential exposures associated with the historical use of asbestos, exposures related to dust within steel foundries, fly ash and silica exposures related to environmental spills. Additionally, he has performed reviews pertaining to the application of industrial hygiene practices in various industries, and performed a cross-sectional analysis of reported corporate environmental sustainability practices by companies across 26 industrial sectors.

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