18° 30! N.,
156° 0O' E.
18° 30' N.,
170° 0O' E.
11° 30' N.,
170° OO' E,
11° 30' N.,
10° 15' N.,
166° 16' E,
166° 16' E.
10° 15' N.,
156° OO' E.
Notices have been given the widest possible distribution
through marine, aviation and international organizations,
Regular air and sea searches of the area will be conqueBefore each shot, the
ted in advance of the start of operations.
patrol of the danger area will be intensified, particularly in the
area where fallout is forecast,
The Atomic Energy Commission has issued regulations which
prohibit entry into the danger area of U. S. citizens and all other
persons subject to the jursidiction of the United States, its
territories and possessions.
The regulations effective from April 11, 1958 until the
HARDTACK test series is completed prohibit entry, attempted entry
or conspiracy to enter the danger area.
Radiation Monitoring in Proving Ground Region
Radiological safety personnel,
equipped with radiation
detection and measuring instruments and two-way radios to enable
them to communicate with the central Task Force Radiological Safety
Office, will be stationed on nearby inhabited atolls, and at
weather stations of the weather reporting network.
In the unlike-
ly event of significant fallout in an inhabited area,
the monitors
would warn the inhabitants and advise and assist them in taking
Safety measures.
The monitors also have trained Marshallese medical
Practitioners and health aides in basic emergency measures.
Radiation Surveys of Sea and Marine Life
Outside of the testing area, the detonations are not ex-
pected to add enough radioactive material to natural levels of
radioactivity in the ocean to be harmful to marine life.
Experi-
ence shows that outside the testing area, resulting quantities of
Yadioactivity in edible sea foods will result in exposures which
Will be very small compared with the limits for public exposure
recommended by the United States National Committee for Radiation
Protection and Measurement.
As in the past there will be a program of study to exflore the ultimate destination and behavior of radioactivity in the
Sea water and in marine organisms.
Sweeps by U.S. Navy Vessels
ooth during and after the test series will include such measures
68 taking continuous readings of radioactivity in surface water,
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