Reference no: EM133190297 , Length: word count: 3 Pages

PHHE 351 Elements of Environmental Health Assignment - Prescott College

Part A - Toxic Metals and Elements

1. Why is lead contamination a concern for environmental health experts?

2. Name some of the portals of entry into the human body for toxic metals. Describe the methods by which these toxic metals may access specific portals of entry.

3. Exposure to heavy metals presents a serious hazard to children.

a. Give an example of a heavy metal to which children commonly are exposed in our environment.

b. List the symptoms of exposure to this heavy metal among children.

c. List the long-term effects of this heavy metal on children.

4. How can you reduce your exposure to copper in tap water?

5. Describe the importance of iron to human health. Describe the side effects of ingesting excessive amounts of iron.

Part B - Pesticides and Other Organic Chemicals

1. Support of refute the following statement: Pyrethrin-based insecticides are unlikely to produce severe human health effects.

2. What type of agent is chloropicrin? Describe the health effects of this family of chemicals?

3. Define the term botanical insecticide and give an example. What is an advantage of using botanicals?

4. Describe the phenomenon of bioaccumulation of toxic chemicals. Give examples of at least two chemicals that tend to bioaccumulate.