CDC considers lowering threshold level for lead exposure
I make sure my own children do things like wash their hands before eating to limit their lead exposure, but I&#x27;ve also been reading up on this issue and keep finding this sort of equivocation:<p><i>This does not mean that children at this level are poisoned,” Dietrich says. “There are very few studies of low-level lead exposure, but there is nothing in the data that suggests that children will have negative impacts of short-term low-level exposure” over their lives. In fact, he notes, the 5 μg&#x2F;dL figure was set because 97.5 percent of young children fall below it, not because blood lead levels at that threshold result in permanent harm</i><p><a href="https:&#x2F;&#x2F;www.scientificamerican.com&#x2F;article&#x2F;the-brains-of-flint-s-children-imperiled-by-lead-could-still-escape-damage&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.scientificamerican.com&#x2F;article&#x2F;the-brains-of-fli...</a><p>The evidence about low-level lead exposure and IQ seems far from definitive, and seems (to my amateur eye) to be full of unadjusted confounding, but I could be missing something.