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Click on the links below to download
documents provided by the Chemicals Regulation Directorate for use with WEBFRAM.
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Guidance Document on how to use Webfram for regulatory risk assessments
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Appendix 1. Guidance on how to use Webfram website
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Appendix 2. Instructions on how to use the bird and mammal model
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Appendix 3. Instructions on how to use the aquatic model
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Appendix 4. Webfram – Worked Examples
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Appendix 5. Comparison of the current, deterministic risk assessment approach with probabilistic risk assessment
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Appendix 6. Dealing with uncertainty – which endpoint should be used in regulatory risk assessments and decision-making, the median, lower or upper confidence interval?
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Appendix 7. Distributions and assumptions used to model toxicity for birds and mammals
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Appendix 8. Research report of the validation of the avian model
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Appendix 9. Development of decision criteria for Webfram risk characterisations: threshold approach
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Appendix 10. Risk assessment for birds and mammals
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Appendix 11. Probabilistic calculation of aquatic exposure via spray drift
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Appendix 13. How to derive a 'regulatory concentration'
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