Evaluating Air Quality in Animal Housing

Air quality in animal feeding operations (AFOs) is relevant not only for human health but also the health and productivity of the animals living in that environment. What are some of the main principles in measuring air quality? What are some of the instruments that can be used? The following materials were developed for college instructors to utilize in their classrooms when presenting about air quality measurement in animal agriculture.…

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.…

Measuring Bioaerosols in Animal Agriculture

Bioaerosols are particles of biological origin that are suspended in the air. These particles can include viruses, bacteria, fungal spores, and pollen. Bioaerosols are commonplace in the air, but measuring them presents some challenges. The following materials were developed for college instructors to utilize in their classrooms when presenting about bioaerosols.…

Ammonia Emissions from Animal Agriculture: An Introduction

Air emissions from animal agriculture operations consist of many different gases as well as suspended particulates (dust or microbes). One of these gases, ammonia, is gaining greater attention for its role in odor, but also as a precursor of fine particulate matter (PM 2.5). PM 2.5 has implications in haze and visibility as well as human health.…

Mitigating Ammonia Emissions from Animal Agriculture

Air emissions from animal agriculture operations consist of many different gases as well as suspended particulates (dust or microbes). One of these gases, ammonia, is gaining greater attention for its role in odor, but also as a precursor of fine particulate matter (PM 2.5). PM 2.5 has implications in haze and visibility as well as human health.…

Dust From Cattle Feedyards: A Case Study From Texas

When talking about air quality around animal agriculture, one of the most common neighbor complaints comes from dust (sometimes also called particulate matter).  Dust is given off from cattle feedyards as animals move around on the pen surface. Although this dust usually settled out of the air relatively close to the feedlot, it can lead to nuisance issues with neighbors or nearby roadways.…