Agriculture - Air Monitoring
Iowa 4B - Marshall County
Iowa 4B is a swine gestation and farrowing operation in Marshall County, Iowa. Two gestation barns and one room in the farrowing barn were monitored for ammonia, hydrogen sulfide, particulate matter (PM10, total suspended particulates and PM2.5) and volatile organic compounds. Weather information and information about barn conditions also was recorded.
If you wish to work with these data files, you will need to first save them to your computer.
You will need Adobe Acrobat Reader to view the Adobe PDF files on this page. See EPA's PDF page for more information about getting and using the free Acrobat Reader.
You will need Microsoft Excel to view the Excel spreadsheet files on this page. Microsoft offers a Free Excel Viewer if you don't own Excel.
- Summary Report (PDF) (336pp, 2.8 MB)
- Data (daily mean concentrations of pollutants, weather and barn conditions) (Excel file) (1.7 MB)
- Data File Key (description of column headers for data worksheet) (Excel file) (37k)
See also the Map of Monitoring Site Locations.