How long can lead be stored in the human body?

Lead can be stored in the human body for an extended period, predominantly accumulating in the bones and teeth where it can remain for several decades. Research indicates that lead can have a biological half-life of about 20 to 30 years in the bones. This long-term retention is critical for understanding the potential toxic effects of lead exposure, as lead can be released back into the bloodstream over time, especially during periods of bone remodeling, such as during aging or certain medical conditions. The extended duration that lead can remain stored underscores the importance of minimizing exposure, especially in environments where lead is prevalent, and monitoring for symptoms of lead poisoning over time.