Radiation Alert in Saint Louis
FRIDAY, SEPTEMBER 16, 2011[MAXIMUM ALERT] Neptunium 239 Potentially Detected In Saint Louis 9/14/11 Radioactive Rainfall[MAXIMUM ALERT] Neptunium 239 Potentially Detected In Saint Louis 9/14/11 Radioactive Rainfall. Updates and video will follow shortly.
The source has a calculated average 2.4 day half life. The half life matches Neptunium 239. Np239 decays into Plutonium 239. The source would probably be Americium 243 created in the MOX fuel reactor at Fukushima Unit 3
Updated to add:
IF WE ARE LUCKY, the source will not be Americium 243 but rather Uranium 239 (in Fukushima); given the 2.4 day half life of Np 239, it is possible that source came directly across the jet-stream as Np-239. The result would be higher levels of Np-239 and Plutonium 239 the further west one went from Saint Louis.