Contact Dr. Ian G. Droppo:

Phone & Address


Adjunct Full Professor, School of Geography and Earth Sciences, McMaster University, Hamilton, Ontario

Adjunct Professor, Physical and Environmental Sciences, University of Toronto, Scarborough.

Adjunct Professor, Department of Chemistry and Biology, Ryerson University, Toronto, Ontario.

Adjunct Assistant Professor, Department of Geography and Planning, State University of New York, College at Buffalo.

Associated Graduate Faculty member in the Department of Environmental Biology, University of Guelph, Ontario.


2008 inductee into the McMaster University Alumni Gallery

Awarded Leverhulme Visiting Research Fellowship at the University of Exeter, UK (2001/2002)

B.A. Hons., M.Sc., McMaster University; Ph.D. University of Exeter, UK


Dr. Ian G. Droppo

Research Scientist - Study Leader, Sediment and Contaminant Transport in Impacted Environments

CURRENT S&T / RESEARCH - Contributing to Environment Canada's mandate to ensure that aquatic ecosystems are conserved and protected

  • Sources, fate and effects of sediment and associated contaminants in natural, urban and engineered systems
  • Pathogen and aquatic sediment interactions
  • Particle dynamics: Investigation of the relationship between floc form and function
  • Biostabilization of contaminated bed sediments
  • Sediment and contaminant dynamics for the lower Athabasca River


15 year contribution to Board of Directors - International Association for Sediment Water Science - including President

Subject Editor (physcial and biogeochemical processes) for the international Journal of Soils and Sediments

Co-supervisor of Ph.D and M.Sc. students as adjunct professor at McMaster University, Ryerson University and the State University of New York. Associated Graduate Faculty member at the University of Guelph.

Conference Organization, including the 12th International Symposium on the Interactions Between Sediments and Water - Dartington, UK (2011).

Research grant and journal paper reviews, including reviewer of NSERC Strategic and Discovery grants, NSF grants, NERC grants


Droppo, I.G., Krishnappan, B.G., Liss, S.N., Marvin, C. and Biberhofer, H. 2011. Modelling sediment-microbial dynamics in the South Nation River, Ontario, Canada: towards the prediction of aquatic and human health risk. Water Research, 45(12): 3797-3809.

Garcia-Aragon, J., Droppo, I.G., Krishnappan, B.G., Trapp, B. and Jaskot, C. 2011. Erosion characteristics and floc strength of Athabasca River cohesive sediments: towards managing sediment related issues. Journal of Soils and Sediments, 11: 679-689.

Spencer, K.L., I.G. Droppo, C. He, L. Grapentine and K. Exall. 2011. A novel tracer technique for the assessment of fine sediment removal in urban water management systems. Water Research, 45: 2595-2606.

Plach, J., A. Elliott, I.G. Droppo and L.A. Warren. 2011. Physical and ecological controls on freshwater floc trace metal dynamics. Environmental Science and Technology, 45(6): 2157–2164.

Grabowski, R.C., I.G. Droppo and G. Wharton. 2011. Erodibility of cohesive sediment: the importance of sediment properties. Earth-Science Reviews, 105: 101-120.

Droppo, I.G., S.N. Liss, D. Williams, T. Nelson, J. Jaskot and B. Trapp. 2009. The dynamic existence of waterborne pathogens within river sediment compartments - Implications for water quality regulatory affairs. Environmental Science and Technology, 43(6): 1737-1743.

Droppo, I.G. 2009. Biofilm structure and bed stability of five contrasting freshwater sediments. Marine and Freshwater Research, 60: 690-699.

Expertise Categories associated with this S&T Expert:

Pollution & Waste
          Stormwater management
          Inland waters
          E. coli
          UV radiation
          Water quality
     Water Quality