The amount of lead that can be emitted into the air in the United States has been dramatically reduced under a new rule the Environmental Protection Agency announced on Thursday to protect the health of millions of Americans — especially children — nationwide.
It was the first new rule on airborne lead in 30 years, and came in response to some 6,000 scientific studies since 1990 that show that lead is dangerous to the human body at much lower levels than previously known.
After 30 years, EPA toughens lead emission standard
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