Page Banner

United States Department of Agriculture

Agricultural Research Service

Download a high-resolution (300dpi) digital image here

Image Number D397-1

In an air quality study, chemist Richard Pfeifer observes the spectra of gases obtained from an infrared spectrometer unit positioned adjacent to a swine facility.

Photo by Stephen Ausmus.

640 pixels wide: (d397-1.jpg)

Please visit our Image Gallery

Last Modified: 10/13/2016
Footer Content Back to Top of Page