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United States Department of Agriculture

Agricultural Research Service

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Image Number D1632-2

Microbiologist Patricia Millner and soil scientist John White review gas-emission data from an enclosed compost pile. A large metal box (seen being lifted with a tractor) is placed over the compost pile so that all gas emissions can be captured and measured.


Photo by Stephen Ausmus.

640 pixels wide: (d1632-2.jpg)

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Last Modified: 8/12/2016
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