Okay gentlemen,
Knew I had the info on my hard drive somewhere. Again, basing my statement on the downtown crater from a suitcase atomic, not H-bomb or dirty bomb, would be concerned about Iodine-125 & 131 levels from fallout which have a half-life of 8.1 days, and assuming a considerable distance from the source. KI would be appropriate, and rehabilitation of the surrounding area is feasible. Agreed that dirty bombs would use isotopes of convenience such as Cobalt 60, commonly used in food irradation, or Cesium-137 available from electrical power reactor wastes, and hardly expecting to ride it out for 30 years. Regards, Keys