Integral Consulting Inc.

Download Full Resume

Dr. Russell Keenan has 25 years of experience as a biologist and toxicologist and is regarded as an expert in the risk assessment of PCBs, dioxins, furans, chromium, and mercury and in the development of time-dependent probabilistic risk assessment methods. Dr. Keenan is noted for his work in evaluating the human health and ecological risks associated with contaminated aquatic environments at many of the major environmental sites in the U.S., including the Hudson, Housatonic, Fox, Penobscot, Willamette, Columbia, Hackensack, and Passaic rivers. He has also directed risk assessments of conventional and radioactive residuals from former mining operations in the western U.S. He represents clients on multi-stakeholder PRP technical and steering committees, provides technical expertise and support in regulatory negotiations, and provides strategic consultation on CERCLA and RCRA risk matters, liability issues, and remedy selection.

Dr. Keenan has testified before U.S. Congressional panels and various state and federal agencies during regulatory proceedings on environmental issues. Among other accomplishments, this work has led to the establishment of EPA-approved alternative ambient water quality criteria in nine states. He recently testified at trial in a case before a jury in U.S. District Court, successfully defending against allegations of chemical trespass, nuisance, negligence, and property damage related to elevated levels of dioxins/furans and PAHs in attic dust samples near an active wood products facility.

Dr. Keenan managed the first private sector Cooperative Research and Development Agreement (CRADA) with EPA in the field of regulatory toxicology and risk assessment. The CRADA provided the framework for cooperative research to develop Monte Carlo-based models for characterizing the uncertainty in reference dose estimates used in noncancer risk assessment. Subsequent to this work, he was selected to serve as one of eight independent experts in the congressionally mandated review of EPA’s process for handling toxicological uncertainty in its Integrated Risk Information System (IRIS). Results of this peer review were submitted to the EPA Science Advisory Board and in a report to the U.S. Congress. He is an active member in the Society of Toxicology, receiving two best paper awards, and in the Society for Risk Analysis, the National Council for Air & Stream Improvement, and the Maine Pulp and Paper Association.

Send an email