some extent."
All packages, persons, and letters returning frq@m the area
were probably contaminated in excess of background radiation.
[For this
reason, the sale to the general public of shipping containers from the PPG
was restricted.
Interstate Commerce Commission regulations required that ajl shipments
of radioactive isotopes in commercial carriers be packaged so fhat no significant alpha or beta radiation would be emitted from the extdrior of the
package, and the gamma radiation emission at any surface of th@
package was
required to be less than the equivalent of 0.010 R of radium g
tion (filtered through 0.5 inch [1.27 cm] of lead) for 24 hourg.
This
meant, in many cases, a holding period in excess of 4 months ffom the release from contaminated storage to the acceptable shipment of
mon carrier in the United States.
jtems by con-
Because agencies often coulg
out this decay period, courier service was utilized.
Courier
not wait
gervice was
not subject to ICC regulations unless a common carrier was useq.
These
shipments had to comply to CJTF regulations on transport of radioactive
materials.
€
Charts and maps were displayed at the Radsafe Office on th¢ Estes and
on Parry Island to keep CJTF 7 staff apprised of the radiologigal situa-
tion.
This display included (Reference 17, Tab C):
@
Hodographs and surface radex
Airborne particle trajectory forecast
Long-range fallout forecast chart
Danger area and search area chart
Transient shipping chart
Native population chart (i.e., number of people on
each populated atoll)
Air radex chart
Cloud-tracking chart (records of inflight reports)
Onsite radsafe situation charts
Offsite radsafe situation chart
Radiation intensities of task force ships
Status of recovery of scientific experiments.
131