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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Examples of Chronic toxic unit in a sentence

  • Chronic toxic unit (TUc ) means 100/MATC or 100/IC25, where the maximum acceptable toxicant concentration (MATC) and IC25 are expressed as a percent effluent in the test medium.

  • Chronic toxic unit (TUC ) means 100/MATC or 100/IC25, where the maximum acceptable toxicant concentration (MATC) and IC25 are expressed as a percent effluent in the test medium.

  • The RWC equals the 100 percent effluent concentration or 1.0 TUc.7.2 "Chronic toxic unit (TUc)" is the reciprocal of the effluent dilution that causes no unacceptable effect on the test organisms by the end of the chronic exposure period.

  • Whole Effluent Toxicity Requirement Definitions7.2 "Chronic toxic unit (TUc)" is the reciprocal of the effluent dilution that causes no unacceptable effect on the test organisms by the end of the chronic exposure period.

  • The RWC equals the 14 percent effluent concentration or 7.0 TUc.1.2 "Chronic toxic unit (TUc)" is the reciprocal of the effluent dilution that causes no unacceptable effect on the test organisms by the end of the chronic exposure period.

  • The RWC equals the 100 percent effluent concentration or1.0 TUc.6.2 "Chronic toxic unit (TUc)" is the reciprocal of the effluent dilution that causes no unacceptable effect on the test organisms by the end of the chronic exposure period.

  • Chronic toxic unit (TUc ) means 100/MATC or IO0/IC2s, where the maximum acceptable toxicant concentration (MATC) and IC2s are expressed as a percent effluent in the test medium.

  • The RWC equals the 92 percent effluent concentration or 1.1 TUc.6.2 "Chronic toxic unit (TUc)" is the reciprocal of the effluent dilution that causes no unacceptable effect on the test organisms by the end of the chronic exposure period.

  • Chronic toxic unit (TUC) means 100/MATC or 100/IC25, where the maximum acceptable toxicant concentration (MATC) and IC25 are expressed as a percent effluent in the test medium.

  • Chronic toxic unit (TUc) means 100/MATC or 100/IC25, where the maximum acceptable toxicant concentration (MATC) and IC25 are expressed as a percent effluent in the test medium.

Related to Chronic toxic unit

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

  • 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.

  • Radioactive waste means radioactive waste as defined in Article 3(7) of Council Directive 2011/70/Euratom8;

  • Toxic chemical means a chemical or chemical category listed in 40 CFR 372.65.

  • Pollutant means any dredged spoil, solid waste, incinerator residue, filter backwash, sewage, garbage, refuse, oil, grease, sewage sludge, munitions, chemical wastes, biological materials, medical wastes, radioactive substance (except those regulated under the Atomic Energy Act of 1954, as amended (42 U.S.C. §§ 2011 et seq.)), thermal waste, wrecked or discarded equipment, rock, sand, cellar dirt, industrial, municipal, agricultural, and construction waste or runoff, or other residue discharged directly or indirectly to the land, ground waters or surface waters of the State, or to a domestic treatment works. “Pollutant” includes both hazardous and nonhazardous pollutants.

  • Gaseous pollutants means the exhaust gas emissions of carbon monoxide, oxides of nitrogen expressed in nitrogen dioxide (NO2) equivalent and hydrocarbons assuming ratio of:

  • Acute toxicity means concurrent and delayed adverse effects that result from an acute exposure and occur within any short observation period, which begins when the exposure begins, may extend beyond the exposure period, and usually does not constitute a substantial portion of the life span of the organism.