DATA BASES
The exposure pathways for persons resettling Enewetak Atoll consist of two major categories:
(1) external exposure and (2) internal
exposure.
The specific pathways in each of these categories are:
(1) External Exposure
a.
Natural background
b.
Man-made gemme and beta
(2) Internal Exposure
a.
Radionuclides in terrestrial foods
b.
Radionuclides in marine foods
c.
Radionuclides in drinking water
d.
Radionuclides inholed
The natural background et
the atoll is 3.5
results primarily from cosmic radiation.
4 per hour and
The natural background is not
included in the doses presented in this paper.
External Exposure - In Situ Measurements
External exposure rates for 137 Cs and 6965,
as well as the
surface (0 to 3 cm) concentration values for 24] Am, were obtained from
in situ measurements performed by EG&G, Inc., as part of the Enewetak
Cleanup Project and can be found in Reference 2.
A draft copy of the
detailed description of the systems and procedures employed in the in
situ measurements is included with this report (Appendix A).
These
measurements were obtained utilizing a planar, high purity, germanium
M501 1683