Toxicity Index
The concept of toxicity evaluation in which toxicant concentration and toxicant exposure time are considered to be equal factors in resultant toxicity.
Toxicity Assessment
Characterization of the toxicological properties and effects of a chemical, with special emphasis on establishment of dose-response characteristics.
Source: Terms of the Environment ...
Toxicity: The degree to which a substance or mixture of substances can harm humans or animals. Acute toxicity involves harmful effects in an organism through a single or short-term exposure.
Chronic Toxicity
The capacity of a substance to cause long-term poisonous health effects in humans, animals, fish, and other organisms.. (See acute toxicity.)
Source: Terms of the Environment ...
Toxicity test: The means to determine the toxicity of a chemical or an effluent using living organisms. A toxicity test measures the degree of response of an exposed test organism to a specified chemical or effluent.
toxicity equivalent (TEQ), Txe
Contribution of a specified component (or components) to the toxicity of a mixture of related substances.
Toxicity: The sum adverse effects resulting from exposure to a material, generally through the mouth, skin or respiratory tract.
Toxicity-the biological effect of a substance. In this context, toxicity and hazard are used interchangeably.
The Three Rs-Reduce, refine and replace.
Sources Consulted ...
Toxicity - The amount of a poisonous substance that exists in a given material. Toxins can be naturally occurring or man-made, and often are linked to water.
V ...
Toxicity Reduction Evaluation (TRE)
a study conducted to determine the source(s) of toxicity in a discharge effluent so that these sources can be controlled sufficiently to allow a discharger to comply with their permit limits.
toxicity test ...
Toxicity Characteristic Leaching Procedure (TCLP)
A federal test for the Toxicity Characteristic (TC).
toxicity. The quality or degree of being poisonous or harmful
to plant, animal or human life.
toxicity assessment Characterization of the toxicological ...
Oral Toxicity: Ability of a pesticide to cause injury when ingested.
Organic: 1. Referring to or derived from living organisms. 2. In chemistry, any compound containing carbon.
phytotoxicity A toxic effect produced by or on a plant.
pico A prefix used in the metric system and other scientific systems of measurement which means 10-12 or 0.000000000001.
neurotoxicity : Exerting a destructive or poisonous effect on nerve tissue.
neutralization : Decreasing the acidity or alkalinity of a substance by adding alkaline or acidic materials, respectively.
Acute Toxicity
The ability of a substance to cause severe biological harm or death soon after a single exposure or dose. Also, any poisonous effect resulting from a single short-term exposure to a toxic substance.
Acute Toxicity
The ability of a substance to cause poisonous effects resulting in severe biological harm or death soon after a single exposure or dose, usually within 24 hours.
Dermal Toxicity
The ability of a pesticide or toxic chemical to poison people or animals by contact with the skin. (See contact pesticide.)
DES ...
O oral toxicity
Definition (english only)
Adverse effects resulting from taking a substance into the body by mouth.
Toxicity
In early civilization, man in his quest for food attempted to eat a variety of materials. Through these experiences, it is likely that man found certain substances to cause illness and even death and others to serve as desirable food for him.
Toxicity testing: Performing controlled testing in the laboratory (in in vitro assays and in animal models) to determine the toxicity of a compound or drug to an organism at various concentrations. Is performed before testing in humans begins.
Toxicity A U.S. EPA hazardous waste characteristic defined with a rigorous test procedure, the TCLP (for Toxicity Characteristic Leaching Procedure). In the procedure, a waste is extracted for 24 hours with an acetic acid solution.
It was once used as a refrigerant in consumer products, but is no longer used because of its toxicity. It is central nervous system irritant, and in high doses can cause paralysis, seizures, and coma.
Contaminants generally mean chemicals and can constitute health hazards because of persistence, toxicity levels or mobility.
Bioassay: A method used to determine the toxicity of specific chemical contaminants. A number of individuals of a sensitive species are placed in water containing specific concentrations of the contaminant for a specified period of time.
The design, manufacture, purchase, or use of materials (such as products and packaging) to reduce the amount or toxicity of garbage generated.
Source Reduction - The design, manufacture, purchase or use of materials to lower the amount or toxicity of waste in an effort to reduce pollution and conserve resources (i.e.
Waste Reduction: A process to reduce or eliminate that amount of waste generated at its source or to reduce the amount of toxicity from waste or the reuse of materials.
Source Reduction- Reducing the amount and/or toxicity of an item before it is ever generated (e.g., buying an item with less packaging, using a non-toxic alternative to clean with).
Toxic Substance (Toxicant): harmful to plant or animal life, either immediately (acute toxicity) or over a long time period (chronic toxicity).
Extraction Procedure Toxicity Characteristic
EQIP
Environmental Quality Incentives Program ...
In vitro
In an artificial environment outside a living organism or body. For example, some toxicity testing is done on cell cultures or slices of tissue grown in the laboratory, rather than on a living animal [compare with in vivo].
For production processes, cleaner production includes conserving raw materials, water and energy, eliminating toxic raw materials and reducing the quantity and toxicity of all emissions and wastes into water and into the atmosphere, and of waste.
Trees supply the fungus with carbohydrate, and the fungus supplies the tree with increased water and nutrient absorption, increased resistance to sulfur and aluminum toxicity, and increased tolerance of soil pH.
Where some additional processing is undertaken of a particular waste. This may be done to reduce its toxicity, or increase its degradability or compost ability.
Watt ...
Dioxin: Any of a family of compounds known chemically as dibenzo-p-dioxins. Concern about them arises from their potential toxicity and contamination in commercial products.
No person in the course of doing business shall knowingly discharge or release a chemical known to the state to cause cancer or reproductive toxicity into water or into land where such chemical passes or probably will pass into any source of ...
Some exemptions do exist, however, such as products tested for toxicity or for their potential effects on human fertility. Some animal advocacy groups see these as unacceptable loopholes likely to undermine the ban or push back its implementation.
 See also: Toxic, Water, Environment, Waste, Air
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