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Politics : PRESIDENT GEORGE W. BUSH -- Ignore unavailable to you. Want to Upgrade?

To: Amy J who wrote (654644)11/1/2004 11:59:47 AM
From: Math Junkie  Respond to of 769670
 
The trouble with wider dispersion is that it also means greater dilution. The dilution is also increased by having to release the material well above ground level. Consider, for example, how low crop duster planes have to fly. This would be extremely difficult in a city due to the obstacle environment.


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