Publish Date: October 20, 2014
Agricultural air quality is a hot topic around the country. Increasing interest in air quality regulation of farms is the result of many changes, including the trend toward larger farms having greater concentrations of animals, and increased knowledge and awareness of air emissions from livestock sources. This document provides background on current air quality regulations, why they were implemented, what swine operations are affected, and how to comply, when necessary. Indoor air quality will not be directly discussed here, but readers should understand that indoor air quality and outdoor air quality are related, and the level of indoor air quality is not necessarily indicative of emission levels.
Publish Date: June 3, 2006
Biofiltration can reduce odor and hydrogen sulfide emissions from livestock facilities by as much as 95% and ammonia by 65% (Nicolai & Janni, 2000) This method of odor control has been shown to be both economical and effective in swine raising systems. Biofilters are most easily adapted to mechanically ventilated buildings or on the pit fans of naturally ventilated buildings. Biofilters can also treat air vented from under manure storage covers.