Joint chemical toxicity definition

Joint chemical toxicity means the outcome of exposure to multiple chemicals that includes the single-chemical effects along with any toxicologic interactions. Chemical interactions can be divided into two major categories: those resulting from a toxicokinetic mode of action and those resulting from a toxicodynamic mode of action (USEPA, 2000e).

Related to Joint chemical toxicity

  • 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.

  • chemical tanker means a ship constructed or adapted and used for the carriage in bulk of any liquid product listed in chapter 17 of the International Bulk Chemical Code;

  • Chemical agent shall mean any compound which, when suitably disseminated, produces incapacitating, damaging or lethal effects on people, animals, plants or material property.

  • Designated chemical dependency specialist means a person

  • Massive Multiauthor Collaboration Site (or “MMC Site”) means any World Wide Web server that publishes copyrightable works and also provides prominent facilities for anybody to edit those works. A public wiki that anybody can edit is an example of such a server. A “Massive Multiauthor Collaboration” (or “MMC”) contained in the site means any set of copyrightable works thus published on the MMC site.

  • Chemical dependency means the physiological and psychological addiction to a controlled drug or substance, or to alcohol. Dependence upon tobacco, nicotine, caffeine or eating disorders are not included in this definition.

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

  • Radionuclide means a radioactive element or a radioactive isotope.

  • Aquatic invasive species means any invasive, prohibited,

  • Biological safety cabinet means a containment unit suitable for the preparation of low to moderate risk agents where there is a need for protection of the product, personnel, and environment, according to National Sanitation Foundation (NSF) Standard 49.

  • Iatrogenic infertility means an impairment of fertility by surgery, radiation, chemotherapy, or other medical treatment affecting reproductive organs or processes.

  • Biological agent shall mean any pathogenic (disease producing) micro-organism(s) and/or biologically produced toxin(s) (including genetically modified organisms and chemically synthesized toxins) which cause illness and/or death in humans, animals or plants.

  • Radioactive marker means radioactive material placed subsurface or on a structure intended for subsurface use for the purpose of depth determination or direction orientation.

  • Animal means any nonhuman animate being endowed with the power of voluntary action.

  • Whole effluent toxicity means the aggregate toxic effect of an effluent measured directly by a toxicity test.

  • Hazardous chemical has the meaning given in subregulation 5(1) of the Work Health and Safety Regulations 2011 (Cth) and includes: prohibited carcinogen, as defined in subregulation 5(1) of the Work Health and Safety Regulations 2011 (Cth); restricted carcinogen, as defined in subregulation 5(1) of the Work Health and Safety Regulations 2011 (Cth); hazardous chemicals the use of which is restricted under regulation 382 of the Work Health and Safety Regulations 2011 (Cth), including polychlorinated biphenyls; Schedule 11 Hazardous Chemicals; hazardous chemicals listed in Table 14.1 of Schedule 14 of the Work Health and Safety Regulations 2011 (Cth); Schedule 15 Chemicals; and lead as defined in subregulation 5(1) of the Work Health and Safety Regulations 2011 (Cth).

  • Carcinogen means a chemical that causes an increased incidence of benign or malignant neoplasms, or a substantial decrease in the latency period between exposure and onset of neoplasms through oral or dermal exposure, or through inhalation exposure when the cancer occurs at nonrespiratory sites in at least one (1) mammalian species or man through epidemiological studies or clinical studies, or both.

  • Corrosion inhibitor means a substance capable of reducing the corrosivity of water toward metal plumbing materials, especially lead and copper, by forming a protective film on the interior surface of those materials.

  • Collaborative drug therapy management means participation by an authorized pharmacist and a physician in the management of drug therapy pursuant to a written community practice protocol or a written hospital practice protocol.

  • Chemical dependency professional means a person certified as a chemical dependency professional by the department of health under chapter 18.205 RCW.

  • Study means the investigation to be conducted in accordance with the Protocol.

  • PCBs means polychlorinated biphenyls.

  • High global warming potential hydrofluorocarbons means any hydrofluorocarbons in a particular end use for which EPA’s Significant New Alternatives Policy (SNAP) program has identified other acceptable alternatives that have lower global warming potential. The SNAP list of alternatives is found at 40 CFR part 82, subpart G, with supplemental tables of alternatives available at (http://www.epa.gov/snap/ ).

  • Microorganisms (1 2) means bacteria, viruses, mycoplasms, rickettsiae, chlamydiae or fungi, whether natural, enhanced or modified, either in the form of "isolated live cultures" or as material including living material which has been deliberately inoculated or contaminated with such cultures.

  • Subsurface tracer study means the release of a substance tagged with radioactive material for the purpose of tracing the movement or position of the tagged substance in the well-bore or adjacent formation.

  • Compounds means any or all of the following chemicals, as the context requires: