Part 1:

1. Identify the factors that affect toxicity in a population. Pick three of the factors and provide a brief discussion on how that factor can affect the health of a population.

2. Identify the factors that determine the fate of chemicals in the air and provide a brief discussion for each.

Part 2:

1. Identify the methods by which toxicants enter the body. Provide a brief description and at least two examples of each.

2. List and describe the factors that affect the distribution of a toxicant in the body.

3. Explain the importance of the cytochrome P-450 enzyme in toxicant biotransformation.

4. Identify the methods for toxicant elimination. Choose one of the methods and explain how a toxicant is eliminated.

Part 3:

6. Describe how toxicant absorption is limited for inhalation, absorption, and ingestion.

7. Use an example of any drug or chemical, discuss how the route of exposure can affect the toxicity.

8. Identify two categories of street drugs, provide at least two examples of each and the toxicity related to each.

Your response should between 200-250 words in length each of question.