EESA10H3 Lecture Notes - Lecture 10: Montreal Protocol, Reference Dose, Risk Management
14 Apr 2017
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Risk: possibility or probability of suffering harm from a hazard. Risk paradigm: no risk if you have contaminants, receptors and exposure pathways separately, you have a risk when all 3 of those factors overlap. Must sometimes take action without full scientific understanding of hazard. Risk assessment sets default procedures for bridging gaps in scientific understanding. Risk assessment: scientific process in estimating how much harm a particular hazard can cause (project) Risk assessment (technical, scientific assessment of the nature and magnitude of risks) Management plan: benefits of risk assessment (from natural research council) Help identify risks that are easily reduced or eliminated. Help clarified what is known or not known about situation. Can provide quantitative information for decision making: applications. Health canada - regulations for foods and drugs. Canada council of ministers of the environment. Site-specific clean up guidelines for contaminated soils. Persistent, bioaccumulation, toxic: stages of risk assessment. Contaminants, receptors and pathways information is put into a conceptual exposure model.
