Note that repackaging a chemical is considered processing it although relabeling or redistributing a container of a toxic substance where no repackaging of the toxic substance occurs does not. The 205 million pounds of copper were used to make such products as electric wire, printed circuit boards, fuses, grinding wheels, jewelry, and dyed fabrics. Production unit a process, line, method, activity, or technique, or a combination or series thereof, used to produce a product. The number represents the change in production in each individual reported chemical since the last reporting year. Generally, production ratios are between .1 and 10.
Negative numbers are errors.
Numbers greater than 10 are highly unusual, but can be correct in cases such as batch chemical processing. These numbers are investigated by the data team and corrected where necessary and possible. A release is a discharge of a toxic chemical to the environment. This includes releases to the air, either as a stack or fugitive emission, discharges to bodies of water such as streams or lakes, or discharges to the ground or underground. 9601 et seq.