Pulmonary deposition of plutonium for worst-case and best-case conditions on Bikini Atol]

Dust
aerosg|

Soil Pu
activity

136

15.3

3.10

0.92

1.04

21

15.3

0.83

2.64

In and around house,
light work

0.83

2]

15.3

0.83

Coconut grove,
light work |

0.83

21

8.0

At roadside,
one vehicle/hd

0.023

28

4.1

Condition

Inhalation
rate

(m3/h)

(yg/m3)

(aCi/pg)

Enhancement
factor

(EF)

Personal
enhancement

(PDE)

Fractional

pulmonary
deposition

of dust?

Pulmonary

activity
deposition

(aCi/h)

High Respiration Pate
Bare field,

during tilling
£9

Stabilized field,

heavy work

1.04
a

0.17b

1050

0.13¢

95

1.86

0.13

54

0.41

1.10

0.13

2.50

1.0

0.17

wy

Normal Respiration Rate

8.2
1.1 + BG

4d From ICRP (1979).

b Pulmonary deposition for particles of 2.0 pm AMAD.
€ Pulmonary deposition for particles of 2.5 ym AMAD.

d Pulmonary deposition resulting from exposure to one, ten-second, median, vehicular dust-pulse, not
including background (BG).

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