TOXICOLOGY III Risk Assessment RiskAssessment 1
Risk Assessment 1 TOXICOLOGY III Risk Assessment
What's the Risk? Risk-The probability that something harmful will happen. Chemical Risk-The probability of harm caused by Chemical exposure. Acceptable Risk-Is determined using scientific data and human judgment. Risk Assessment 2
Risk Assessment 2 What’s the Risk? ▪ Risk- The probability that something harmful will happen. ▪ Chemical Risk – The probability of harm caused by Chemical exposure. ▪ Acceptable Risk – Is determined using scientific data and human judgment
HOW SAFE IS SAFE ENOUGH? Risk Assessment-A process to determine how safe is safe enough. -Answer Two Questions: What health problems could this chemical cause? How likely are these health problems to occur? RiskAssessment 3
Risk Assessment 3 HOW SAFE IS SAFE ENOUGH? ▪ Risk Assessment – A process to determine how safe is safe enough. ▪ Answer Two Questions: ▪ What health problems could this chemical cause? ▪ How likely are these health problems to occur?
HOW SAFE IS SAFE ENOUGH? Summary of Risk Assessment Chemical Risk Toxicity X Exposure Toxicity-What health problems are associated with various doses or concentrations. Exoosure-How much chemical a person is likely to get(from any source) RiskAssessment
Risk Assessment 4 HOW SAFE IS SAFE ENOUGH? ▪ Summary of Risk Assessment ▪ Chemical Risk = Toxicity X Exposure ▪ Toxicity- What health problems are associated with various doses or concentrations. ▪ Exposure- How much chemical a person is likely to get (from any source)
HOW SAFE IS SAFE ENOUGH? High chemical risk requires both high toxicity AND exposure. May household chemicals are highly toxic but proper RISK MANAGEMENT can reduce risk. RiskAssessment 5
Risk Assessment 5 HOW SAFE IS SAFE ENOUGH? ▪ High chemical risk requires both high toxicity AND exposure. ▪ May household chemicals are highly toxic but proper RISK MANAGEMENT can reduce risk