Your number for TMI seems orders of magnitude higher than what I remember, sure it's the right unit ? Pierre
TMI total release was very high but something like 99% (I don't remember the exact number but it was ridiculously high) of the release was "noble" gas - Kr, Xe, etc. - with extremely low to inexistent biological impact.
03
some 14 million curies of noble gases (~500 PBq) and 14 curies (~500 GBq) of I-131 were released during the course of the accident. About 50,000 curies (~2 PBq) of Kr-85 were vented from the containment and 2 million curies (~75 PBq) of tritium was released.
What people were justifiably freaking out about was iodine with the bio-concentration in the thyroid. Turned out there was very little of it.
