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View Diary: OIL SPILL rivalling Exxon-Valdez, 30K tons est. so far (252 comments)

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  •  a disaster, yes... (0+ / 0-)

    but not one rivalling the Exxon Valdez.

    30,000 tons is the same as
    600,000 lbs, or at 8 lbs per gallon
    75,000 gallons

    For comparison, the Exxon Valdez leaked between 11 and 30 million gallons of crude.

    So the Exxon Valdez is somewhere between 15 and 50 times as much oil spilled.

    •  er... significant mistake there (7+ / 0-)

      make that 30,000 tons is
      60,000,000 lbs
      7,500,000 gallons

      putting it someone on par with, but still smaller than the Valdez spill.

      Oil spills are notoriously hard to determine the size of, so I wouldn't doubt it if the 30,000 tons is + or - a significant amount.

    •  It isn't just about quantity. The substance (5+ / 0-)

      is not regular oil.

      from the first link in the diary (al Jazeera) :

      Earlier on Tuesday in Rome, an Italian environmental agency which monitors the Mediterranean said the spill posed a heightened risk of cancer.

      Simonetta Lombardo, of Info-Rac, said the leakage "is a high-risk toxic cocktail made up of substances which cause cancer and damage to the endocrine system.

      "It is not oil that has flowed but fuel for power stations. This contains substances such as benzene, categorised as a Class 1 carcinogen."

      Bohemia has no banner. It survives by discretion. - Tennessee Williams

      by kitten sedaris on Wed Aug 09, 2006 at 12:10:24 AM PDT

      [ Parent ]

      •  typical journalist mangling the science (7+ / 0-)

        but directionally correct.

        Heavy fuel will have all the nasties from crude in it.  And worse as it can contain the unconverted residue from cat crackers or other conversion equipment.  So not really benzene but large polycyclic molecules that are MORE carcinogenic than benzene.  But it might not be that bad depending on what the blender used to make it.  Med had a surplus of resid components back in the day so might be a little better than the same sort of fuel sourced in the USGulf.

        ANS crude has about 33% gasoline and diesel in it coming out of the ground.  Those molecules naturally evaporate away.  This shit only has a few % diluent in it to cut its viscosity enough such that it will flow without heating.  So getting rid of it will be a real mess.

        •  oh crap, I quoted it in other comments too. (0+ / 0-)

          I was on a bit of a rampage..

          Thank you so much for the clarifiction/correction/information. I did try to research what exact compound or mix of stuff would have been involved, but didn't get very far.

          So you're saying that the "fuel for power stations" is heavy fuel? Just want to make sure I have the basics in order.

          Cat crackers??

          Bohemia has no banner. It survives by discretion. - Tennessee Williams

          by kitten sedaris on Wed Aug 09, 2006 at 04:06:19 PM PDT

          [ Parent ]

    •  Handy dandy bioenergy conversion factors (0+ / 0-)

      provided by our government for free (so far). Using the following: "about 7.2 barrels oil are equivalent to one tonne of oil," I calculated that there are 302.4 gallons of oil per tonne, and a gallon weighs 7.29 lbs. A metric tonne is a unit of mass equal to 1000 kilograms or 2204.6 pounds. This ignores the weight differences between types of oil/heavy oil/diesel fuel oil, etc., of which I'm ignorant.

      Can someone explain this: "The specific gravity of diesel fuel is 0.84:  weight of one gallon of diesel fuel is:  8.33 lb/gal x 0.84 = 7 lb/gal." ? I don't understand whether diesel fuel (is this the same as 'heavy fuel oil') weighs 8.33 or 7 lbs per gallon. Where did the 8.33 figure come from?

      •  isn't 8.33 lbs/gal (1+ / 0-)
        Recommended by:
        Halcyon

        the figure for water?  i think the specific gravity is the ratio of the wt. of this stuff to water.

        www.beyondmarriage.org

        by decafdyke on Wed Aug 09, 2006 at 05:08:44 AM PDT

        [ Parent ]

        •  I think the problem probably arises (1+ / 0-)
          Recommended by:
          Spam Spam Bacon Spam

          from citing a canadian website.

          Everyone knows that those doofuses - who gave us Celine Dion - measure gallons and that type of thing stangely.

          p.s. wouldn't a gallon of water be exactly 8.0 lbs (i.e., 128 oz / 16 oz per lb)?

          Or do count the mass of the container, too?

          •  Not quite (3+ / 0-)
            Recommended by:
            Roadbed Guy, DSPS owl, KateinIL

            p.s. wouldn't a gallon of water be exactly 8.0 lbs (i.e., 128 oz / 16 oz per lb)?

            No. You are confusing "fluid ounces" (a unit of volume) with "avoirdupois ounces" (a unit of mass). It's an easy and common mistake.

            Keeping everything in units of volume:

            1 US gallon = 128 fl. oz. = 3.785 liters = 3785 cm^3.

            By definition, 1 cm^3 of water (at 4C) has a mass of 1 gram.  Now, converting back to mass units, 3785 grams = 8.344 pounds, as stated above.

            That's for water. We can now use the "specific gravity," which is the density of a substance relative to water and a unitless value. If the specific gravity of "diesel fuel" is 0.84, then

            0.84 * 8.344 pounds/gal (water) = 7.01 pounds/gal (diesel fuel).

            Hope that helps.

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