Colleen Priest

Environmental Risk Assessor

New Gloucester, Maine

Email: moc.k1579734427isnir1579734427tni@t1579734427seirp1579734427c1579734427
Phone: +1 207-926-1065 x 14
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Colleen Priest is an Environmental Risk Analyst with Intrinsik Environmental Sciences (US) Inc.  She has helped conduct numerous pesticide risk assessments for the purposes of registration and re-registration in Canada and the United States, as well as individual (e.g., Indiana bat) and national endangered species assessments for many pesticide active ingredients. Pesticides have included imidacloprid, clothianidin, 2,4-D, carbofuran, carbosulfan, chlorpyrifos, dicamba, dimethoate, glufosinate, malathion, and others. Recently, Colleen conducted a screening-level ecological risk assessment to evaluate the effects of clothianidin to aquatic invertebrates in Canada and the United States. Colleen has also been instrumental in helping to develop criteria for a national endangered species assessment framework and applying the criteria to endangered species assessments for a selection of organophosphates pesticides.

Prior to working at Intrinsik, Colleen worked as a toxicologist with the Aquatic Toxicology Laboratory at Queen’s University (Kingston, ON). In this position, she conducted oil-related research on behalf of the Trustees on the Deepwater Horizon Oil Spill Case. Colleen has also held several field and laboratory research assistant positions, primarily related to aquatic toxicology. In 2011, Colleen completed a Master’s of Science degree, which evaluated the acute and chronic toxicities of chemically dispersed crude oil to Atlantic and Pacific herring embryos.

Experience Highlights

• Experience conducting environmental risk assessments and national endangered species assessments.
• Experience developing and using deterministic and probabilistic exposure models to estimate risks to non-target species.

Education and Professional Qualifications

• M.Sc., Biology, Queen’s University
• B.Sc. (Honours), Biology, Queen’s University

Professional Affiliations

• American Chemical Society, Agro Division
• Society of Environmental Toxicology and Chemistry