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I have the opportunity to work with experienced and talented people, across many industries in a working environment that emphasizes collaboration. Cardno ENTRIX has given me the opportunity to leverage what I had learned in school and experience and apply it to real world issues. Cardno ENTRIX allows me to work on a wide range of projects and enjoy a diversified experience.

- Lauren Shapiro Federsel

Senior Project Consultant/Senior Geospatial Manager

Global Product Stewardship

Click here to email our Global Product Stewardship Team.
Paul M. Mehrle, PhD

Paul M. Mehrle, PhD

Strategic Development Director
Senior Principal / Senior Vice President
Columbia, MO
573.815.0006

Dr. Mehrle is an environmental toxicologist and chemist with 30 years of experience in ecological risk assessments, litigation support, and international regulatory compliance of chemicals. He specializes in the fate and effects of chemicals including petroleum hydrocarbons, pesticides, PCBs, dioxins, metals, pharmaceuticals, and consumer products. He has extensive experience in providing strategy development for managing environmental liabilities and supporting litigation cases. As the head of our firm's National Toxicology Practice, Dr. Mehrle is responsible for directing company-wide initiatives in ecotoxicology, human health toxicology, environmental and human health risk, and product safety and compliance. Dr. Mehrle has written over 100 scientific publications and abstracts and been an invited participant in numerous international conferences. He is a member of the American Chemical Society and served as president of the Society of Environmental Toxicology and Chemistry and editor of the international journal Environmental Toxicology and Chemistry. Dr. Mehrle joined our firm in 1996, after successful careers with the U.S. Fish and Wildlife Service, and as Director of Environmental Toxicology and Chemistry at an international contract research laboratory. Dr. Mehrle has been a consultant and science advisor to global chemical manufacturers, consumer product companies, law firms, and state, national and international government organizations. He earned his Ph.D. in Biochemistry and M.A. in Zoology from the University of Missouri, and his B.A. in Biology at Rhodes College.

Richard P. Hubner, MPH

Richard P. Hubner, MPH

Northeast Business Unit Manager
Arlington, VA
703.373.7600

Mr. Hubner leads our team's practice in the Washington, DC metropolitan area. He is a well respected public health expert and risk analyst with more than two decades of experience in the fields of strategic risk management, toxicology, human health risk assessment, product stewardship, industrial hygiene, risk communication, and regulatory affairs. He consults with clients in a range of product safety and compliance matters, including product registration, product stewardship and regulatory advocacy. Moving forward, he will help extend the company's suite of offerings in resource economics, energy and litigation support throughout the nation's capital. Mr. Hubner is versed in national and state regulatory arenas, having worked extensively with federal agencies and in helping private sector clients navigate complicated issues. In addition, he has a strong record of providing exceptional consultation, business leadership, and advocacy from his prior work as co-founder and president of an international risk management consulting firm for the past 15 years. Throughout his career, he has provided counsel to a diverse range of clients including private industry, non-profit organizations, trade associations, state and federal agencies, and law firms. Mr. Hubner earned a Masters in Public Health from the University of Medicine and Dentistry of New Jersey and his B.S. degree in Biological Sciences from Rutgers University.