(NewsNation) — Public health officials in San Francisco say that immediate action isn't necessary to protect public safety following the detection of plutonium in the city, as reported by local outlet SFGate.

Last week, health officials in San Francisco were furious over the revelation that high levels of plutonium were detected 11 months ago in an air filter at the former Hunters Point Naval Shipyard, only to be brought to health officials' attention in late October.

In a letter to the Navy, San Francisco Health Officer Dr. Susan Philip expressed outrage that city health officials discovered this October that plutonium-239 had been detected at the former Hunters Point Naval Shipyard, which served as a repair shipyard for the Navy from 1945 to 1974 and housed a radiological lab when it w

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