Figure 2,,, Disposition of Used Rubber Tires,,, "Passenger cars, trucks, and motorcycles",,, ,,, Thousand tons,,, ,Total generated,Total recovered,Total discarded 1970,1890,250,1640 1980,2720,150,2570 1990,3610,440,3170 1995,3770,670,3100 1998,4510,1060,3450 "SOURCE: U.S. Environmental Protection Agency, Office of Solid Waste, Characterization ",,, "of Municipal Solid Waste in the United States (Washington, DC: Various years).",,,