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 1,228,604,128 860,000,000 210,000,000,000 10,000,000,000 5,300,000,000 2,700,000,000
1992 1,284,534,168 860,000,000 210,000,000,000 10,000,000,000 5,500,000,000 2,700,000,000
1997 1,480,739,795 910,000,000 220,000,000,000 11,000,000,000 5,700,000,000 2,900,000,000