Remember Chernobyl? And that 'minor' accident in local nuclear power plant?
Some of the machinery used during the cleanup of the mess was too radioactive, even for Soviet standards and was left to disintegrate in a large car park:
http://englishrussia.com/index.php/2009/03/16/chernobyl-scrap-metal/You might know those pictures already. Nevertheless nice ideas and reference for weathering.
Filip