Lead | Parks

Paths to Contamination

How lead can enter the body, in private homes and in public parks

Christopher Brown

Lead, a soft and naturally occurring metal, is one of the best-studied toxic substances known to humans—it is especially harmful to the brain, kidneys, bone marrow, and other body systems of young children. Childhood lead poisoning has been dramatically reduced over the past few decades, as lead has been phased out from gasoline, food and beverage cans, house paint, and other common sources. In 1978, there were about 14.8 million poisoned children in the United States; by the early 1990s, that number had declined to 890,000 children. In Chicago, the rates of elevated blood levels in children have decreased from one in four to fewer than one in one hundred children tested.