RADON ENTRY AND BEHAVIOR

 

Unit Activity 1

Identify all potential radon entry points in house depicted in the diagram that can be viewed by clicking here.

Unit Activity 2

Using the text box below on the right, match the contribution each of the sources of radon entry to the percent of radon levels in the average U.S. home, e.g., 5-e, 6-f.
Source
Average Percent
1) Well Water
a) 2% - 5%
2) Emanation
b) 1% - 4%
3) Soil Air
c) -1%
4) Diffusion
d) 85% - 90%

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Copyright 2000, Great Lakes Center for Occupational & Environmental Safety & Health, School of Public Health, University of Illinois at Chicago