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It can also be used to mix binders or additives into contaminated soil or sediment to immobilize hazardous constituents within the treated material and thus preventing the contaminant from spreading into the surrounding areas.
Saccharin (trade name Sweet'N Low) got a bad rap in the 1970s when rats exposed to large amounts got bladder cancer, but it has since been vindicated: The Food & Drug Administration removed warning labels in 2000 and the Environmental Protection Agency removed it from its lists of hazardous constituents and commercial chemical products in 2010.
By OSHA standards, castings may contain hazardous constituents, such as Mn, Cu, Fe, Ni, Cr, Pb, etc.
However, most batteries have hazardous constituents, whether it is the metals that are present or the electrolytes.
Hazardous waste mixtures of listed hazardous waste remain hazardous as regardless of the amount of hazardous constituent.
Under the new rule, the waste must be treated so that not just the benzene, but all underlying hazardous constituents meet the applicable Universal Treatment Standards (UTS) before the waste or its residue can be land-disposed.
And the Solid Waste Disposal Act states that waste may contain "no migration of hazardous constituents.
Superfund's statutory preference for permanent remedies is very rational; it derives from our very limited technological and institutional capabilities to isolate and contain hazardous constituents over the long haul--as the general public is aware from society's difficulties with isolating nuclear waste, and as some citizens living near "contained" Superfund sites can attest from their direct experience living with endlessly eroding and breached clay caps.