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How about aerators to clean up the bay?

I just read the article about dredging the Susquehanna River, and I couldn't help thinking back to the Seoul Olympics where they used aerators to clean up their filthy water and they got it clean enough that all of the rowing events were held in very safe water ("Study: Dredging little help to bay," Nov. 13).

The way I understood it, the oxygenation of the water allowed the good bacteria to survive and eat up all of the pollutants. At the time they said that the carbon fuel running the aerators was too expensive and creating other pollution problems to make that technology useful on a larger area.

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I couldn't help but wonder with all this time and technological advancement and the fact that they can identify a smaller area where this occurs, why we don't have industrial-sized solar powered aerators by now. It would seem a lot less costly than $3 billion dredging that would need to be done each time the sediment came back.

Steven Davidson, New Windsor

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