> Even after it's been turned to steel and worked into bridges, building, cars, etc?
For that reason metal recyclers run routine radiation scans on all incoming materials before contaminated material enters the supply chain [1][2]. And there have been a number of such incidents[3][4].
> For that reason metal recyclers run routine radiation scans
Just to be clear here .. are you actually claiming that raw iron ore tumbling through a loadout and being density scanned:
* actually contaminates the ore and converts it into the equivilant of radioactive waste?
* that metal recyclers are finding signs of > 800 million tonnes per annum of radiated metals?
* that no one has noticed this and seen fit to write an evironmental study paper about it?
Is there any chance here you conflating actual radioactive metals turning up in recycled metals with what is a long standing global practice that doesn't created dangerous radiatctive iron?
For that reason metal recyclers run routine radiation scans on all incoming materials before contaminated material enters the supply chain [1][2]. And there have been a number of such incidents[3][4].
[1] https://www.epa.gov/radtown/radioactive-material-scrap-metal
[2] https://www.hse.gov.uk/waste/radioactive-contamination.htm
[3] https://k1project.columbia.edu/a11
[4] https://www.recyclingtoday.com/article/radioactive-scrap-thr...