Using the CDC$\text{'}$s ATSDR website, look up the Toxicological Profile for Radon. Using

Section $1,$ the Radon Public Health Statement, find the following information:

a$)$ What are the two primary progeny $($decay products$)$ of radon, ${?}^{222}Rn?$

b$)$ Why does smoking indoors increase the health risk from radon?

c$)$ What is the primary route of exposure for radon?

d$)$ What is the EPA action level in air for radon?

e$)$ Should your household be found to have elevated radon levels, what is one way to reduce

indoor exposure levels?