Animal Feeding Operations - 2012 Monitored AFOs
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.
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- 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)