This is the most important reply in the thread of the eye catching panic post about finding lead in tampons.
Repeat after me “the dose makes the poison”
While on the one hand, yes, bad, on the other…
120 ng/g is
0.00000012 g per gram of tampon
Some of this is actually not having equipment sensitive enough to detect that before now
Something I have to keep teaching people over and over in the radiation side of the house “There is a world of difference between detectable and dangerous, and our detectors get better every year.”
Action Phil and the Scary Background Radiation of Perfectly Normal from Atomic Robo is so wonderful and informative for both those and other reasons 8-)