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dbpedia:Plutonium_in_the_environment
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Since the mid-20th century, plutonium in the environment has been primarily produced by human activity. The first plants to produce plutonium for use in cold war atomic bombs were at the Hanford nuclear site, in Washington, and Mayak nuclear plant, in Russia.
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dbpedia:Natural_environment dbpedia:Fukushima_Daiichi_nuclear_disaster dbpedia:Chernobyl_disaster dbpedia:Actinide
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