| http://www.w3.org/ns/prov#value | - Plutonium and other contaminants were released, but the exact amount of which contaminants is unknown; estimates range from 25 mg to 250 kg.12 Settembre 1957 - (incidente unit??? navale nucleare) Atlantic: The USS Wasp (CVS-18) suffers a second fire while in dry dock in Boston, Massachusetts, causing minor damage.14 Settembre 1957 - Nevada Test Site (USA): test nucleare20 Settembre 1957 - (inciden
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