A Compilation of Research on Lead Toxicity

Lead has a half-life of 27 days in the blood (according to Environmental Health Perspective 1995; 103:988-999).  Therefore, chronic exposure will not adequately show up in blood tests, so performing these tests and documenting their results will not properly diagnose chronic heavy metal toxicity.  In chronic exposure cases, the blood does not carry the heavy metals, but rather the metals are stored in body tissue and can only be released to be measured with a chelating agent.  The source of chronic exposure is difficult, if not impossible, to determine. Continue reading