Buildings as Shielding
The numbers in the diagram represent a radiation dose reduction factor. For example, the number
50 indicates that a person in that area would receive l/50th of the dose of a person standing
outside of the building. Higher numbers indicate more protection from ionizing radiation.
Office/Large Apartment Building
1-story
Brick Brick,
vendor concrete
Wood
frame
Brick,
concrete
¦	M
¦	9-1'
| »-»
100-199
g >200
Source: https://www.ready.gov/

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