Health Impact of Toxic Wastes: Estimation of Risk
Toxic waste disposal has been very haphazard in the past. Only recently has it been recognized that certain chemicals may persist for many years, that they may migrate, and that drums containing them eventually corrode. Toxic wastes have been and are still being handled in a number of ways. They may be temporarily or permanently stored in controlled and uncontrolled landfills, salt mines, in warehouses, mixed into salvage oil, dumped at night on private property or along road sides, dumped into rivers, lakes and the ocean, treated in special lagoons or ponds with chemicals, bacteria and/or ultraviolet light to degrade them (Johnson, 1977; Dunphy and Hall, 1978). They may be discharged into sewage treatment plants or they may be retained by the toxic waste generator on his property, in which case they are either burned or stored in drums above or below the ground.
KeywordsClay Migration Toxicity Dust Chlorinate
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