A guy talking near some jars of bitumen. Stolen from here. |
Here's an article about how some scientists think that some diluted bitumen would sink in the event of an oil spill in the ocean.
Merv Fingas says that Enbridge's expert, Alan Maki, is wrong when he says diluted bitumen is wrong. Fingas says the diluent separates from the bitumen in time, and then any bitumen that is denser than salt water will sink in the ocean, making cleanup more difficult. Quite a lot of bitumen is denser than salt water, although not all. He adds that bitumen is less damaging to sea life than conventional oil because it has "fewer soluble toxins". I suppose that squares with the observation that fish in the Athabasca river appear to be fine despite exposure to bitumen for thousands (millions?) of years.