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 10,852,244 4,300,000 1,000,000,000 92,000,000 66,000,000 19,000,000
1992 10,515,303 4,200,000 1,000,000,000 89,000,000 64,000,000 18,000,000
1997 7,588,377 3,000,000 730,000,000 64,000,000 46,000,000 13,000,000