-9-

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1

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I II

I

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I Ill

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1
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25

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20
15
10

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5
0.1

0.5

1

5

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50

Particle
aerodynamicdiameter,pm

Figure 2.

Plutonium activity (pCi g-l) versus particle aerodynamic diameter D
(pm) at the 1.1 m height over bare soil on Bikini Island (wind
speed 4.5 m S-l, surface contamination 15.3 pCi g-l).

●

*

(.,

.

.

Select target paragraph3