The result of a risk assessment on a carcinogen yielded a cancer risk for individuals in the scenario of 2.4E-6. Explain what this mean.
If a NOAEL derived from a chronic human epidemiology study with adult males is used for determining the RfD, what would the maximum safety factor be?
For question 3, consult the result from question 1 in weekly assignment #5; for question 4, consult the result from question 2 in weekly assignment #5. (The questions are in files) 
The chemical in your room near campus has an RfD of 30 mg/kg-day and an RfC of 300 mg/m3. Use the information and results from question 1 in your weekly assignment #5 and calculate the HQ with both RfD and RfC. Should you be worried based on the HQ?
While tolune is not a carcinogen, for the purpose of this question let’s assume it is and has a cancer slope factor of 4E-5 per mg/kg-day. Use the results from question 2 in your weekly assignment #5 and calculate the cancer risk for the male and female population. Should they be worried?