1. Department
of Chemistry, University of Alberta, Edmonton,
AB, Canada, T6G 2G2
2. Department
of Laboratory Medicine
and Pathology, University of Alberta, Edmonton, AB, Canada, T6G 2G3
3. Water Science and Technology Directorate, Environment Canada, Burlington, ON, Canada, L7R 4A6
4. Department of Environmental
Studies and Sciences and Department of Chemistry, Richardson College
for the Environment, University of Winnipeg, Winnipeg MB, Canada, R3B 2E9