POLLUTION LOCATOR|Animal Waste|U.S. Trends


Trends in Animal Waste Levels
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Year Number of Head Amount of Waste
(tons)
Volume of Waste
(gallons)
Amount of Nitrogen in
Waste (pounds)
Nitrogen lost to
Atmosphere (pounds)
Amount of Phosphorus
in Waste (pounds)
1987 95,837,172 710,000,000 170,000,000,000 7,900,000,000 4,000,000,000 1,900,000,000
1992 96,213,736 710,000,000 170,000,000,000 7,800,000,000 4,000,000,000 1,900,000,000
1997 99,275,900 750,000,000 180,000,000,000 8,200,000,000 4,100,000,000 2,000,000,000