On  Jun 11 , at 10:42 AM, <[email protected]> <[email protected]> wrote:

> But I want to hear the estimates in *mass* units, kilograms and kg/s, not in 
> decimeters^3 or in liters or their time rates of flow.


Why?

To most of us who care about the effects of the oil spill on our environment 
here in Florida and other Gulf states, the volume of the oil is of much greater 
interest than its mass. The volume relates to how much of the Gulf (and later 
the Atlantic) will be covered with oil and the resulting threat to our shores, 
beaches and coastal marshes.

Admittedly, the spilled oil degrades and decomposes some, is dispersed 
naturally or with artificial dispersants, some of the more volatile components 
evaporate into the air (are they any safer there? - another whole question) so 
the volume remaining is difficult to estimate and constantly changing. However, 
the amount of the spillage, as measured by its volume, is the most critical way 
to visualize that amount.

I would further contend that a still more important figure would be the area 
covered by the oil. That is even harder to ascertain since it would depend on 
the thickness of the oil layer. However, it would certainly be more closely 
related to the volume than to the mass.



Bill Hooper
1810 mm tall
Fernandina Beach, Florida, USA

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   SImplification Begins With SI.
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