1. Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Canada
2. Ontario Rural Wastewater Centre, University of Guelph, Alfred, Canada
3. Department of Geography and Environmental Studies, Wilfrid Laurier University, Waterloo, Canada
4. Department of Agricultural and Environmental Engineering, The University of Bamenda, Bamenda, Cameroon
5. School of Environmental Sciences, University of Guelph, Guelph, Canada
6. Environment Canada, Gatineau, Canada