ABSTRACT
This part introduction presents an overview of the key concepts discussed in the subsequent chapters. The part presents the some literature that the respective roles of radon and smoking in the induction of lung cancer may not be unrelated. The uncertainty in the risk is particularly critical, since the multiplication of people "best" estimates of lung cancer risk per unit exposure and average exposure yields a lifetime risk of a few tenths of a percent. A risk estimate can be obtained by direct consideration of lung cancer incidence among uranium miners, although it must be recognized that the individual exposures of miners in the populations studied are all highly uncertain, and that the transiation of miner risks to the general population is not necessarily simple. There is a general understanding of the effect of reduced ventilation in increasing population exposure and the risk of lung cancer.
