For the first time in over 20 years, the CDC has redefined the “level of concern” for lead levels in children’s blood. The agency, in a statement released Wednesday, has lowered this level from 10 mcg/dL to 5 mcg/dL; now children whose blood levels exceed the latter concentration will be identified as “living or staying for long periods in environments that expose them to lead hazards.” What’s more, the CDC has now asserted that any level of lead in the blood, even below 5 mcg/dL, is a potential health hazard. But this new recommendation goes a step further than simply lowering the level of concern. Read the full story in ACSH Dispatch.