For months, worried parents in Flint, Mich., arrived at their pediatricians’ offices in droves. Holding a toddler by the hand or an infant in their arms, they all have the same question: Are their children being poisoned?
To find out, all it takes is a prick of the finger, a small letting of blood. If tests come back positive, the potentially severe consequences are far more difficult to discern.
That’s how lead works. It leaves its mark quietly, with a virtually invisible trail. But years later, when a child shows signs of a learning disability or behavioral issues, lead’s prior presence in the bloodstream suddenly becomes inescapable.
According to the World Health Organization, “lead affects children’s brain development resulting in reduced intelligence quotient (IQ), behavioral changes such as shortening of attention span and increased antisocial behavior, and reduced educational attainment. Lead exposure also causes anemia, hypertension, renal impairment, immunotoxicity and toxicity to the reproductive organs. The neurological and behavioral effects of lead are believed to be irreversible.”
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