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Macro Concerns in a Nano World

At 10,000 times smaller than the width of a human hair, you can't see nanoparticles, but you can find them in everyday products like sunscreen and clothing. But environmental and health concerns are mounting about exposure to nanomaterials, sparking a growing debate about their possible regulation.

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Indexed: 13/08/2008 05:30
Views: 1459
Source: KQED Quest

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