Ongoing Concerns
The risk of corrosion of the alloy casing of the bomb is less if it is completely covered in sand. But if part of the alloy casing of the bomb is exposed to seawater due to the shifting strata in which it is buried, rapid corrosion could occur, as demonstrated in simulation experiments. Eventually, the highly enriched uranium could be leached out of the device and enter the aquifer that surrounds the continental shelf in this area. Storms, hurricanes, and strong currents frequently change the sands of the continental shelf near Tybee Island.
To date, no undue levels of unnatural radioactive contamination (over and above the already high levels thought to be due to monazite, a locally occurring sand which is naturally high in radiation) have been detected in the regional Upper Floridian aquifer by the Georgia Department of Natural Resources.
This event, as well as the 1956 B-47 disappearance, were the basis for NCIS Episode "Broken Arrow," which aired in 2010.
Read more about this topic: 1958 Tybee Island Mid-air Collision
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