Chronic toxic unit definition

Chronic toxic unit or "TUc" means 100/NOEC or 100/IC25, where the NOEC and IC25 are expressed as a percent effluent in the test medium.
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Related to Chronic toxic unit

  • Chronic toxicity means concurrent and delayed adverse effects that occur only as a result of a chronic exposure.

  • toxic waste or "toxic substance" under any provision of Environmental Law and shall also include, without limitation, petroleum, petroleum products, asbestos, polychlorinated biphenyls and radioactive materials;

  • Toxic Substance includes but is not limited to asbestos, polychlorinated biphenyls (PCBs) and lead-based paints.

  • Explosives or munitions emergency response means all immediate response activities by an explosives and munitions emergency response specialist to control, mitigate, or eliminate the actual or potential threat encountered during an explosives or munitions emergency. An explosives or munitions emergency response may include in-place render-safe procedures, treatment or destruction of the explosives or munitions and/or transporting those items to another location to be rendered safe, treated, or destroyed. Any reasonable delay in the completion of an explosives or munitions emergency response caused by a necessary, unforeseen, or uncontrollable circumstance will not terminate the explosives or munitions emergency. Explosives and munitions emergency responses can occur on either public or private lands and are not limited to responses at RCRA facilities.

  • toxic substances as defined by the Toxic Substances Control Act, as amended from time to time (“TSCA”), (4) “hazardous materials” as defined by the Hazardous Materials Transportation Act, as amended from time to time (“HMTA”), (5) asbestos, oil or other petroleum products, radioactive materials, urea formaldehyde foam insulation, radon gas and transformers or other equipment that contains dielectric fluid containing polychlorinated biphenyls and (6) any substance whose presence is detrimental or hazardous to health or the environment, including, without limitation, microbial or fungal matter or mold, or is otherwise regulated by federal, state and local environmental laws (including, without limitation, RCRA, CERCLA, TSCA, HMTA), rules, regulations and orders, regulating, relating to or imposing liability or standards of conduct concerning any Hazardous Materials or environmental, health or safety compliance (collectively, “Environmental Requirements”). As used in this Contract: “Release” means spilling, leaking, pumping, pouring, emitting, emptying, discharging, injecting, escaping, leaching, dumping or disposing.