Air quality has many components, one of which is PM2.5 and ammonium nitrate and ammonium sulfate are reported to be two of the major components. Swine confinement facilities generate significant quantities of ammonia which can combine with nitric acid and…
Developing a Decision Support Tool to Optimize Swine Production Facility Layout to Minimize Downwind Air Quality Impacts
These model experiments of air flow characteristics suggest that when swine confinement buildings are oriented so that the approaching wind is parallel to the buildings the wind is reduced less than when the buildings are oriented across the wind direction.…
Measurement and Prediction of Phosphorus Transport from Swine Manure at the Watershed Scale
Optimizing the Placement of Practices that Improve Water Quality Within a Watershed
Pathogenic and Indicator Bacteria in Agricultural Watersheds
Escherichia coli and Enterococcus are indicator bacteria that were measured in Iowa streams that drain land with different levels of swine production. We completed a study monitoring=g these bacteria over three and one-half years. Bacteria were readily transported from manured…
Evaluation of the ammonia emissions from swine production units in Iowa
Ammonia concentrations in the air adjacent to and downwind of swine production units are of concern to producers. Most of the existing measurements have been conducted with single point monitors or at locations adjacent to or within the building and…
Best Management Practice Research in a Watershed with Swine Production Facilities
This project has supported research in the South Fork of the Iowa River watershed, where swine and other livestock are being produced, and water resource concerns have been raised. These activities are aimed to document the hydrology and water quality…