Suppose you have just been hired by a consultancy firm to work on a campaign to inform the public about various indoor sources of air pollution.

4.

Suppose you have just been hired by a consultancy firm to work on a campaign to inform the public about various indoor sources of air pollution. Although you will be expected to learn about many different pollutants, your primary focus will be radon. (10 points)

a. During your first day on the job, you meet a man who has detected radon gas in the basement of his home. Explain how the radon most likely got into the man's basement and how it might damage his health if it is not removed. Describe a reduction technique that would be appropriate to use in his home. 

b. Later, you meet a woman who has detected radon in the crawl space beneath her home. Explain why the woman can't reduce her radon levels using only natural ventilation methods, such as opening windows and doors. Describe a reduction technique that would be appropriate to use in her home. 

c. During one of your home inspections, you discover an old refrigerator from the early 1980s in a family's basement. Explain the relationship between appliances such as the refrigerator and stratospheric ozone depletion. Describe one negative health consequence of stratospheric ozone depletion and one piece of legislation or other political act that has combated stratospheric ozone depletion. 

d. Identify two common indoor pollutants other than those already mentioned in parts (a), (b), and (c), and describe a reduction technique or strategy for each pollutant.