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Lead Pollution Has Dropped 100-Fold in the U.S. Over the Last Century
Lead pollution today compared to 100 years ago has dramatically declined—by 100-fold over the last century—according to new research. Lead is a dangerous neurotoxin that accumulates in human tissues and is linked to developmental deficits in children. Due to the health risks, the United States and other countries start phasing out lead in the 1970s, […]
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