This model doesn t have a threshold level but shows less risk at low doses than does the linear model. The true form of the dose-response relationship at low doses is unknown. Explain how the linear no-threshold model acts as an upper limit on the dose response relationship in the low dose region. 10- Assessing Risk Four people in the United States will contract cancer each year from residues of Difluoromuckone in food. Assessing and managing The risk assessor brings together all available scientific information to describe the nature and the magnitude of the risks associated with exposures to chemicals.
Risk managers decide on actions taken to reduce risk to the public.
Risk assessment is based on the work of radiation biologists, health scientists, physicists, safety engineers, molecular biologists, regulators, social scientists, toxicologists, and even psychologists interested in risk perception. Risk Risk is a probability that something bad will happen. It is expressed as a fraction without units. A value of zero indicates the absolute certainty of no risk. A value of one is the absolute certainty that the risk will occur.