Proposal for Priority Setting for Existing Substances on the Domestic Substances List under the Canadian Environmental Protection Act, 1999 : Greatest Potential for Human Exposure

2003

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Table of Contents

1. Introduction
2. Content
3. Proposal for the First Stage of Priority Setting for Greatest Potential for Exposure
   • 3.1 The Limited Objective
   • 3.2 The Proposal
   • 3.3 Basis for the Criteria for the Initial List of Prioritized Substances
   • 3.4 Principles and Process by Which the Proposal Was Developped
   • 3.5 Nature of Substances Prioritized for Further Consideration
   • 3.6 Confidence and Limitations
4. Next Steps
5. Invitation to Comment
6. Background to CEPA 1999 Priority Setting for Health Risk Assessment for Existing Substances
7. Glossary
8. References

List of Figures

• Figure 1: Schematic representation of the proposed first stage of priority setting for GPE
• Figure 2: The Existing Substances Program under CEPA 1999
• Figure 3: Types of substances on the DSL

List of Tables

• Table 1: Distribution of substances on the DSL by quantity code (1986 data)
• Table 2: Types of substances initially prioritized for further consideration by the approach outlined in the proposal
• Table 3: Number of substances prioritized by the proposed approach according to the 20 use codes ranked highest for exposure potential

List of Appendices

• Appendix A: Substances Initially Prioritized by the Proposed Approach (Available in PDF Format only)
• Appendix B: Tables of Functional Use Codes, Industrial Sector Codes and Quantity Codes
• Appendix C: Development of the Use Code Indices and Ranking of Functional Use and Industrial Sector Codes for "Potential for Human Exposure"

Supporting Documentation

The following reports constitute supporting documentation to this proposal:

• Report on Workshop to Consider DSL Industrial Sector and Functional Use Codes as Indicators of Potential Human Exposure, 1st Workshop (Government Experts), May 30, 2000.
  
  
• Report on Workshop to Consider DSL Industrial Sector and Functional Use Codes as Indicators of Potential Human Exposure, 2nd Workshop (Industry Experts), October 18, 2002.
  
  
• E. Doyle, H. Patterson, A Study to Determine Currency of DSL Quantity Data for Use in Categorization of DSL Substances, Report prepared by Exposure Assessment Section, Existing Substances Division, Health Canada, August 2001.

The above documents are available from the Existing Substances Division website at <http://www.hc-sc.gc.ca/exsd-dse> or on request from:

Existing Substances Division
Bureau of Environmental Contaminants
Safe Environments Programme
Health Canada
Environmental Health Centre, Room 145
Tunney's Pasture
Postal Locator: 0801C2
Ottawa, ON K1A 0L2
ExSD@hc-sc.gc.ca

List of Acronyms and Abbreviations