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 1,070,137,933 43,000,000 10,000,000,000 1,100,000,000 420,000,000 370,000,000
1992 1,121,313,704 43,000,000 10,000,000,000 1,100,000,000 450,000,000 360,000,000
1997 1,316,425,230 50,000,000 12,000,000,000 1,300,000,000 530,000,000 410,000,000