Even steel that was made after 1945 contains a bit of radiation because of the explosions of the Trinity Test, Hiroshima and Nagasaki.
Steel from before then is highly sought after for example for some medical equipment where there should be as little background radiation as possible.
So yes, most likely, there are still some things whose current radioactivity would be from the Chernobyl accident.
But don´t worry. A little bit of radiation isn´t dangerous to humans. Even right now, while you breath, for example, you take in radioactive material in form of “C-14”.
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