EESA01H3 Lecture Notes - Canada Council, Risk Assessment, Health Canada
Document Summary
Risk probability of suffering harm from a hazard. Must sometimes take action without full scientific understanding of hazard. Risk assessment sets default procedures for bridging gaps in scientific understanding. Basic framework: evaluate exposure and toxicity; bring this information together to characterize a health risk. Help identify risks that are easily reduced or eliminated. Help clarified what is known and not known about the situation. Health canada regulations for foods and drugs. What is the purpose ,mangement goals,policy context anr imprortant and we need audience to follow that,hazard definition,receptors and level of funding: identify contaminant. Single compounds or complex mixture with a few compounds driving toxicity contaminated soil, and/or air pollution: receptor analysis. Organism, species or groups of species exposed to stressor. Length of exposure (life time, 20 years latency for cancer) Define routes of exposure (ingestion, inhalation, dermal) Determine rate of exposure from each route. Characterized activity pattern that results in exposure. Sensitive subpopulation (recent interest in children: pathways analyses.
