centration of 0.05 mg/L. The cancer potency factor for ingesting benzene is 2.9 x 102 mg/kg.day. a) Following the EPA exposure factors, determine the lifetime cancer risk assuming the receptor is an adult. State all assumptions. b) To reduce the lifetime cancer risk, it is proposed that the village replaces their homegrown produce with fish caught in the same river. Determine the percentage change in lifetime cancer risk from this potential solution and advise the community on the better food source of the two.

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Substance Abuse

Substance abuse refers to the use of illegal drugs in excessive quantities, as well as the misuse of legal substances such as prescription or over-the-counter pharmaceuticals or alcohol for purposes other than those intended. Drug addiction, also known as substance use disorder, is a disease that affects the brain and behavior of a person. It leads to a failure to control the use of any drug or prescription, legal or illegal.