1. School of the Environment, Trent University, Peterborough, Ontario, Canada
2. School of Energy and Environment, State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China
3. Water Quality Centre, Trent University, Peterborough, Ontario, Canada
4. Department of Earth Sciences, Memorial University of Newfoundland, St. John's, Canada
5. Chemistry Department, Trent University, 1600 West Bank Drive, Peterborough, Ontario, Canada K9L 0G2