> ... and radioiodine releases (predominantly I-131) of about 12 Ci. Are you sure about the I-131? A large amount of I-131 was released at Chernobyl, but I believe this was not the major radionuclide released at TMI. "Shlala gashle" (Zulu greeting, meaning "Stay safe") mike (mcnaught@LANL.GOV)