Definition
A test designed to determine whether a waste is hazardous or requires treatment to become less hazardous; also can be used to monitor treatment techniques for effectiveness.
See also:
Hazardous Waste
A subset of solid wastes that pose substantial or potential threats to public health or the environment and meet any of the following criteria: -is specifically listed as a hazardous waste by EPA; - exhibits one or more of the characteristics of hazardous wastes (ignitability, corrosiveness, reactivity, and/or toxicity); - is generated by the treatment of hazardous waste; or is contained in a hazardous waste.
Parts per Billion (ppb)
One ppb is comparable to one kernel of corn in a filled, 45-foot silo, 16 feet in diameter.
Parts per Million (ppm)
One ppm is comparable to one drop of gasoline in a tankful of gas (full-size car).
Parts per Trillion (ppt)
One ppt is comparable to one drop in a swimming pool covering the area of a football field 43 ft. deep.