Measuring Particulate Matter (Dust) in Animal Agriculture

Particulate matter (often called dust) is made up of particles that are suspended in the air. The following materials were developed for college instructors to utilize in their classrooms when presenting about particulates and livestock or poultry farms.

Laboratory Exercises

Presentation Slides

Techniques for Determining Particle Size Distribution (PSD) of Particulate Matter

This presentation was given to the American Chemical Society in 2011 and focuses on comparisons between different techniques as well as the challenges is making these measurements. (36 slides; 6 MB). Download a copy of this presentation.

Note: Some of the graphics are missing in the Slideshare preview below, but they are all available in the download link.

Photo Slide Show

Clicking on a photo will take you to its page with the description and the person that should be credited if you use the photo in a presentation.


These materials were developed by the Air Quality Education in Animal Agriculture (AQEAA) project with with financial support from the National Research Initiative Competitive Grant 2007-55112-17856 from the USDA National Institute of Food and Agriculture.

For questions about the materials on this page contact Dr. Eileen Wheeler, Pennsylvania State University or the author, Dr. Lingjuan Wang-Li, North Carolina State University. For questions about the AQEAA project, contact Dr. Rick Stowell, Unviersity of Nebraska (

If you have presentations, photos, video, publications, or other instructional materials that could be added to the curricula on this page, please contact  Jill Heemstra (