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Health and Environment

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Consequences of Radiation Exposure
The Plutonium Files
The Earth Sciences Group
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Quick Fact:
Between April 1945 and July 1947, eighteen people were injected with plutonium, six with uranium, five with polonium, and at least one with americium. The experiments were performed at Manhattan Project-affiliated hospitals in Rochester, New York; Oak Ridge, Tennessee; Chicago, Illinois; and San Francisco, California.