On December 24th, 2020, the Chinese Ministry of Ecology and Environment (MEE) unveiled the official version of three technical guidelines, including Technical Guidelines for Environmental and Health Hazard Assessment of Chemical Substances (Trial), Technical Guidelines for Environmental and Health Exposure Assessment of Chemical Substances (Trial) and Technical Guidelines for Environmental and Health Risk Characterization of Chemical Substances (Trial).

This Guidelines stipulates the principles, processes and methods for the environmental and health exposure assessment of chemical substances. The contents include:

• 1. Scope of Application

• 2. Normative References

• 3. Terms and Definitions

• 4. Principles of Assessment

• 5. Procedures of Assessment

• 6. Formulation of Plan

• 7. Information Collection

• 8. Construction of Exposure Scenarios

• 9. Estimation of Environmental Releases

• 10. Environmental Exposure Assessment
  

• 11. Health Exposure Assessment

• 12. Exposure Assessment Report

• Appendix A Environmental Release Coefficient of Chemical Substances

• Appendix B Recommended Values of Exposure Parameters

• Appendix C Environmental Behavior and Fate Parameter Calculation

• Appendix D Fate and Exposure Estimation of Chemical Substances in C-STP (0)

• Appendix E Environmental Exposure Estimation Model on Local Scale

• Appendix F Health Exposure Estimation Model on Local Scale

• Appendix G CET Software