What is the primary route of lead exposure in children?

The primary route of lead exposure in children is through ingestion of lead dust or lead-contaminated objects. Young children, especially those under six years old, often have a tendency to put objects in their mouths, which can include contaminated toys, furniture, and even fingers that have come into contact with lead dust. When lead dust settles on surfaces, it can easily be transferred to food, hands, or objects that children commonly put in their mouths, such as pacifiers or toys.

Ingestion of lead is particularly concerning because it allows the toxic metal to directly enter the bloodstream, leading to severe health risks such as developmental delays, cognitive deficits, and other serious medical conditions. This mode of exposure is far more prevalent in children compared to other routes, such as inhalation or contact with contaminated surfaces, because of their behavior and developmental stage. Understanding this route helps emphasize the importance of reducing lead-contaminated dust in environments where children live and play.