CONTENTS (Cont'd)
Page
¢.
The Buildup of BRAVO Fallout on the Ground .....-.+..
e.
Activity and Exposure-Rate History Based on Bikini
d.
A Simple Model for Exposure-Rate History at Rongelap,
Sifo, and Utirik Islands ...cccscccccscvesssscseces
ASH wcccccrcscccc tere secererseeesecseesccscesesssece
i. Areal Activity and Exposure Rate from Nuclides
Observed on Day 26 wceosccccccccecscccccssese
ii. Areal Activity at Fallout Cessation ...cseccses
iii. Areal Activity of Nuclides Without Descendants
iv.
ve
vi.
in Bikini ASH wcsccccncccccnnccecscsssscscess
Non-Fission-Fragment Nuclides Not Accounted
LOT scocccccccenscccscscevorescceenceseseueces
Input Data to Kinetics Equations ...ccccenvceee
Exposure Rate on Day 0.5 and Surface Roughness
Effects
vii.
ames et
tII.
eee
30
31
32
37
38
38
39
Radioactivity in Food, Water Supplies, and Air ...seceoee
eaenpneaeeaetevp
cosa
swpaeveepeeaeceseeceseoaoeeoev
esc
eoeveneeveewvepeoesneen
39
b.
Activity Ingested with Drinking Water ....scscocceees
42
Total Activity [ntake ..cccccrcccccccccvescscccevcese
Deriving 131r Intake Based on Bikini Ash, 89gr,
and !4032 in Urine on Day 45 Post-Detonation ...+.Absorption Through Skin ..ccccsccccescsccncsccccccces
54
a.
Activity in Cistern Water ..ccceseseseseccscccecesess
Ce.
d.
e.
f.
Activity
Activity
Activity
Activity
1.
;
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30
©
Ze.
he
3.
eee
28
Integrated Exposure and Whole-Body Absorbed
Dose
2.
seeeeeceeseoaeetoesposeeceoeecaepaeseeeeeae
22
in Pood wescccsccrcsccccccsscccscscssccccccs
Ingested with Meals ...cccscccccevesssesceces
Concentrations in Air .ccccccccccccccssscses
Intake by Inhalation ..ccscscccccccscsscesee
39
44
45
IZ
52
54
57
Absorbed Dose for Individuals ..ccccssnccssccccscccsveves
57
c.
d.
60
60
a.
b.
Absorbed Dose per Unit Activity Intake .....ccesceeee
Thyroid Absorbed Dose ...ccccnccrccccccsccccscneveses
Maximum Thyroid Absorbed Dose ..cccncevcscnccccccecee
External Sources of Thyroid Dose ...ccccsescceseceees
57
dF
Thyroid Nodule Risk and Thyroid Cancer Risk from Exposure to
Fallout
eeseoeeepeeeev ease eee ee esses eeeeeeaeeeeseeeeesceeeeesevneensvnes eee s
62
A.
B.
Tabulation of Thyroid Effects and Age at Exposure ..cccsceees
Tabulation of Risk of Thyroid Cancer .sccccssecncsssccsesesss
62
62
D.
Estimate of the Uncertainty in the Derived Risk Estimate ...-.-
45
C.
Comparison to Other Estimates of Risk of Thyroid Cancer .....
-~ viii -
62