
Blood lead level (BLL)
Blood lead level (BLL) measures the amount of lead present in a person's blood, typically expressed in micrograms per deciliter (µg/dL). Lead exposure can come from various sources, such as old paint, contaminated water, or soil. Elevated BLLs can lead to serious health issues, especially in children, affecting their development, learning, and behavior. Regular screening is important, as many people with high levels may not show immediate symptoms. If detected, steps can be taken to reduce exposure and improve health outcomes. Awareness and prevention are key to managing lead exposure risks.