Dr. Jeff Ridal
Dr. Jeff Ridal
Executive Director and Chief Research Scientist
Telephone: 613-936-6620 ext 228
My research predominantly involves water and sediment quality issues, including recreational water quality, fate and transport of contaminants, and food web bioaccumulation.
My educational background is in chemistry (BSc. Trent, M.Sc. Ottawa) and oceanography (Ph.D. Dalhousie). Post-doctoral positions at Canada’s National Water Research Institute and the University of Montreal brought me into the freshwater field. I joined the River Institute in 1995 as its first Research Scientist and became its Executive Director in 2004. I hold adjunct professorships with Queen’s University and the University of Ottawa. In 2008, I was named to the International Joint Commission’s Science Advisor Board, and currently serve on the Beach and Recreational Water Quality and Chemicals of Emerging Concern working groups.
1.Ridal J, Hickey B, Marty J and Bhavsar, S.P.. Addressing the fish consumption beneficial use impairment in the Bay of Quinte. Accepted for publication in Aquatic Ecosystem Health & Management.
2.Avramescua, M-L. Yumvihoze, E. Hintelmann, H., Ridal, J., Fortin, D., Lean, D.R.S. Biogeochemical Factors Influencing Net Mercury Methylation In Contaminated Freshwater Sediments From The St. Lawrence River In Cornwall, Ontario, Canada. Science of the Total Environment. Accepted for publication.
3.Delongchamp, T.A., J.J. Ridal, D.R.S. Lean, L. Poissant, and J.M. Blais. 2010. Mercury transport between sediments and the overlying water of the St. Lawrence River area of concern near Cornwall, Ontario Environmental Pollution. 158: 1487-1493.
4.Marty, J, M.R. Twiss, J.J. Ridal, Y. de la Fontaine, and J.M. Farrell. 2010. From the Great Lakes flows a Great River: overview of the St. Lawrence River ecology supplement. Hydrobiologia, 647: 1–5.
5.Ridal, J.J., L.E. Yanch, A.R. Fowlie, N.R. Razavi, T.M. Delongchamp, E.S. Choy, Fathi, P.V. Hodson, L.M. Campbell, J.M. Blais, M.B.C. Hickey, E.Yumvihoze, .R.S. Lean. 2009. Potential causes of enhanced transfer of mercury to St. Lawrence River Biota: implications for sediment management strategies at Cornwall, Ontario, Canada. Hydrobiologia 647: 81–98
6.Delongchamp, D.R.S. Lean, J.J. Ridal, J.M. Blais. 2009. Sediment mercury dynamics and historical trends of mercury deposition in the St. Lawrence River area of concern near Cornwall, Ontario, Canada. Science of the Total Environment 407 (2009) 4095-4104.
Ridal, J.J., C. Veenstra, D.R.S. Lean and E. Yumvihoze. 2009. Assessment of Mercury Loadings from Tributaries to the St. Lawrence River (Cornwall) Area of Concern. Report prepared for the Raisin Region Conservation Authority, Cornwall, ON, the Ontario Ministry of the Environment, Eastern Region, Kingston, ON, and the Ontario Ministry of Agriculture, Food and Rural Affairs, Kemptville, ON in support of the St. Lawrence River (Cornwall) Remedial Action Plan and the Canada-Ontario Agreement.
Ridal, J.J., C. Veenstra and C. Critoph. 2009. Bacteria Contamination Assessment and Remediation Program 2008: Contributions of Tributaries. Report prepared for the Raisin Region Conservation Authority, Cornwall, ON, and the Ontario Ministry of the Environment, Eastern Region, Kingston, ON in support of the St. Lawrence River (Cornwall) Remedial Action Plan and the Canada-Ontario Agreement. 45 pp.
(Ridal, J.J. et.al.) Contributing author to the Work Group Report on Beaches and Recreational Water Quality prepared for the 2009 Biennial Meeting of the International Joint Commission. Available online at http://meeting.ijc.org/
(Ridal, J.J. et.al.) Contributing author to the Work Group Report on Chemicals of Emerging Concern prepared for the 2009 Biennial Meeting of the International Joint Commission. Available online at http://meeting.ijc.org/
Ridal, J.J. and M.B.C. Hickey. 2009. Sampling Program in Support of the Assessment of Fish Consumption Restrictions (Beneficial Use Impairment #1) for the Bay of Quinte Remedial Action Plan. Report prepared for the Bay of Quinte Remedial Action Plan. 20 pp