Lead (Blood)

Blood Lead Level (BLL) measures the amount of lead circulating in the bloodstream, reflecting recent or ongoing exposure. Lead is a toxic heavy metal with no safe level of exposure; it accumulates in the body (especially bones) and harms multiple organ systems, particularly the brain and nervous system (especially in children), kidneys, and cardiovascular system (hypertension). The goal is to minimize exposure and maintain levels as low as possible (<1-2 ug/dL).