• Intrinsik Science Inc. :: Science - Integrity - Knowledge
  • Intrinsik Science Inc. :: Science - Integrity - Knowledge
  • Intrinsik Science Inc. :: Science - Integrity - Knowledge
  • Intrinsik Science Inc. :: Science - Integrity - Knowledge
  • Intrinsik Science Inc. :: Science - Integrity - Knowledge

R. Scott Teed, B.Sc., GIS Certificate,EP

Office: Ottawa, Ontario
Position: Scientist and Office Manager
Phone: +1 613 761-1464, ext. 223
Fax: +1 613 761-7653
Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Download Vcard

Mr. Teed has 17 years of experience in ecological risk assessment (ERA) including exposure and effects assessments for aquatic and wildlife species exposed to commercial chemicals, pesticides and other environmental contaminants. Mr. Teed has been involved in conducting ecological risk assessments for several contaminated sites in Canada and the US. For example, he is currently the lead ecological risk assessor for a former oil refinery site in Alberta and for a former railway site in Thunder Bay, Ontario. In the US, Mr. Teed participated in ecological risk assessments for the Housatonic River, MA and the Calcasieu Estuary, LA CERCLA (Superfund) contaminated sites. Mr. Teed has either, managed or participated in refined ecological risk assessments of numerous pesticides including glufosinate, carbofuran, simazine, aldicarb, chlorpyrifos, imidacloprid, permethrin, methomyl, tefluthrin, fluoxypyr, pendimethalin, trichlorfon, malathion, dimethoate, and others. Most assessments involved probabilistic exposure and effects methods to determine the magnitude of risk to ecological receptors. These assessments included endangered species assessments for the California Red-Legged Frog (CRLF), re-registration assessments under the FIFRA and/or the PCPA, support for registration of additional use patterns, standards development, and derivation of risk mitigation options. He has also led the assessment of potential risk from pesticide mixtures in the California Central valley.

Mr. Teed provides geographic information system (GIS), database, and application development support to Intrinsik clients. He is one of the main developers of the Granular Pesticide Avian Risk Assessment (GranPARAM) and Liquid Pesticide Avian Risk Assessment model (LiquidPARAM). Mr. Teed previously worked in the (now) National Guidelines and Standards Office of Environment Canada for 5 years where he developed soil quality guidelines under the National Contaminated Sites Action Plan (NCSRP) (now FCSAP), CCME water quality and tissue residue guidelines and evaluated commercial chemicals (tetrachloroethylene) that were included on the Priority Substances List (PSL). Mr. Teed is familiar with Canada’s Chemicals Management Plan (CMP) having reviewed several screening-level risk assessments produced under the CMP.

Experience Highlights

  • Currently leading ecological risk assessments for a former Imperial oil refinery site and a railway site.
  • Currently conducting U.S. National Endangered Species Assessments for two herbicides and two insecticides.
  • Currently leading an ecological risk assessment in support of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) re-registration of glufosinate.
  • Conducted numerous prioritization/ranking evaluations for pesticides and other chemicals.
  • Led the ecological risk assessment for re-registration of chlorpyrifos under Canada’s Pest Control Products Act.
  • Led the development of Ideal Performance Standards (IPS) for numerous pesticides.
  • Assisted with endangered species risk assessments for the California Red-legged Frog.
  • Led numerous risk assessments and developed risk mitigation measures to reduce risk to biota from exposure to pesticides and other chemicals (e.g., nanoparticles).
  • Expert in Canadian and U.S. approaches to environmental guideline/criteria development.
  • Provides peer review services for other consulting firms, industry and government agencies.
  • Current member of the Society of Environmental Chemistry and Toxicology (SETAC).
  • Has Environmental Professional Certification (EP) through ECO Canada.


B.Sc., Biology, Carleton University
Geographic Information Systems Certificate (3 – year) from Algonquin College

Service Areas