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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library


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Image Number K8649-2

The petri dishes below show sterilization effects of negative air ionization on a chamber aerosolized with Salmonella enteritidis. The left sample is untreated; the right, treated.

Photo by Ken Hammond.



640 pixels wide: (k8649-2.jpg)




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Last Modified: 5/23/2006
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