““The problem with this theory is that ◦ Thimerosal is not mercury itself, but a mercury compound ◦ Thimerosal is not the more dangerous methyl mercury compound, but the less dangerous ethyl mercury compound Why should any of that matter? Mercury itself can accumulate in someone's system and then stay there indefinitely. The half life of methyl mercury, however, is one and a half months, during which time it is exposed to the blood and may accumulate in the body, but the half life of ethyl mercury is one week and is excreted from the body. A””
