1. EC (Environment Canada), 1997. Strategic options for the management of toxic substances from the base metals smelting sector; report of stakeholder consultations. p. 239.
2. EC/HWC (Environment Canada/Health and Welfare Canada), 1993. Arsenic and its compounds. Canadian Environmental Protection Act, Priority Substances List assessment report. Minister of Supply and Services Canada, Ottawa. (Cat. No. En40-215/14E).
3. EC/HC (Environment Canada/Health Canada), 1994a. Cadmium and its compounds. Canadian Environmental Protection Act, Priority Substances List assessment report. Minister of Supply and Services Canada, Ottawa. (Cat. No. En40-215/40Ez0).
4. EC/HC (Environment Canada/Health Canada), 1994b. Chromium and its compounds. Canadian Environmental Protection Act, Priority Substances List Assessment Report. Minister of Supply and Services Canada, Ottawa. (Cat. No. En40-215/40E).
5. EC/HC (Environment Canada/Health Canada), 1994c. Nickel and its compounds. Canadian Environmental Protection Act, Priority Substances List assessment report. Minister of Supply and Services Canada, Ottawa. (Cat. No. En40-215/43E).