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user-inactivated  ·  4212 days ago  ·  link  ·    ·  parent  ·  post: Mountain of Petroleum Coke From Oil Sands Rises in Detroit

http://www.cbc.ca/news/canada/windsor/story/2013/03/12/wdr-p...

It sounds like it's mostly little clumps of carbon, so it should be more-or-less harmless?