the consequence of any substance introduced into air, water or to the ground which has the effect of rendering them toxic or otherwise harmful.
Refers to the presence of dirt, oil, grease, moisture or other loose material on the surface being bonded to which impedes an adhesive tape's contact, thus preventing a good bond.
See Radioactive Contamination
undesired foreign matter or organisms in a product or on an object.
Entry of undesirable organisms into some material or object.
The act of making something impure or infected.
Microorganisms, chemicals, toxic substances, wastes, or wastewater introduced into water, air, or soil in a concentration that makes the medium unfit for its next intended use. Objects such as building surfaces can also contain contamination.
The presence of foreign materials, chemicals or radioactive substances in the environment (soil, sediment, water or air) in significant concentrations.
the soiling or polluting of water by microorganisms that can cause disease
1. The presence of an infectious agent on a body surface; also in or on clothes, bedding, toys, surgical instruments or dressings, or other inanimate articles or substances including water, milk and food. (Last's epidemiological definition) 2. The undesirable deposition of a chemical, biological, or radiological material on the surface of structures, areas, objects, or people (FEMA definition). See also biological contamination; infection.
Process of adulterating, soiling or infecting with unwanted micro-organisms.
The introduction of materials which makes otherwise potable water unfit or less acceptable for use.
1) Radioactive deposition of radioactive material in any place where it is not desired, and particularly in any place where its presence may be harmful. The harm may be in vitiating the validity of an experiment or a procedure, or in actually being a source of danger to personnel, 2) presence of small percentages of deleterious elements in an alloy adversely affecting the alloy's mechanical properties and/or casting soundness.
the existence of dangerous entities or substances, which are outlined in the 1980 Environmental Response Compensation and Liability Act.These substances may include chemical toxins, dangerous substances, biological dangers, radioactive materials, and unexploded materials that offer a real public danger or negatively affect safety and health standards.
the introduction of harmful or hazardous matter into the environment
Any deposit, adsorption, or absorption of radioactive, biological, or chemical substances on and by structures, areas, personnel, objects, soil, and water. Food and/or water made unfit for human or animal consumption by the presence of radioactive, biological, or chemical substances.
The deposit, absorption, or adsorption of biological or chemical agents (including the growth of bacteria or fungi)on or by materials, structures, areas, personnel, or objects
The adding of any substance to water which makes it unfit for use.
A condition or state of the environment that represents danger to life because of the presence of live pathogenic bacteria or toxic chemicals. Any physical, chemical, biological or radiological substance found in a water source. Contaminants can be naturally occurring, or human-made.
The introduction of any potentially harmful biological, chemical or physical agent into food.
Any foreign substance which makes an unwanted incursion. In the present context, usually viable airborne particulates.
Generally anything referring to the ecological changes by the alien presence is referred to as "Contamination" - specifically, the phrase refers to the spores and radioactive, phase-shifting goo that cause rampant mutations to indigenous life. The Mutants refer to the liquid form of Contamination as Blood (in a revered religious sense), and the vapour or pervasive atmospheric form as Spirit. Non-mutants often refer to the liquid form simply as "goo".
a substance that contaminates
the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors
Presence of unexploded conventional ordnance, or of biological, radioactive, toxic chemical, or hazardous substances (defined in comprehensive Environmental Response Compensation and Liability Act of 1980) at levels that present a public hazard or exceed applicable standards.
The radiation responsible for the Mutants' genetic mutation. Liquid contamination is religously referred to as "Blood" by Mutants
Unwanted radioactive and/or hazardous material which is disbursed on or in equipment, structures, objects, soil or water. Contamination may be either surface or volumetric (i.e., contamination incorporated within a solid material). Surface contamination may be either removable or fixed.
the deposition of unwanted radioactive material on the surfaces of structures, areas, objects, or people where it may be external or internal. See also decontamination.
means the unintended presence of potentially harmful substances, including microorganisms, chemicals, and physical objects in food.
The addition or presence of foreign materials in a substance, or an environment that may render it unfit for it's intended use/function.
the process by which any physical, chemical or biological substance (usually human-made/anthropogenic) is introduced into the environment.
the process of adding one substance to another substance, such as as motor oil to water, that reduces its quality; to make impure or unsafe by contact with potentially harmful substances.
Forensics]. The unwanted transfer of material to a piece of physical evidence.
A term used to describe unwanted material that adversely affects the physical or electrical characteristics of a semiconductor wafer. It refers to unwanted impurities in the process gases, in the process equipment, or in the final product.
Radioactive material deposited or dispersed in materials or places where it is not wanted.
Deposition of radioactive material in any place where its presence is undesirable.
The undesirable transfer of material to physical evidence (DNA) from another source.
A foreign substance in the material such as metal, cardboard or another material.
Radioactive material deposited on a surface or in a medium where it is not wanted. Surface contamination is monitored directly with portable instruments or indirectly through the use of the swipe test.
The deposition of unwanted radioactive material on or inside structures, areas, objects or personnel.
Forestry Operations & Water Quality] A general term signifying the introduction into water of micro-organisms, chemical, organic, inorganic wastes or sewage, which renders the water unfit for its intended use.
means the unintended presence in food of potentially harmful substances, including microorganisms, chemicals, and physical objects.
(marine): An anthropogenic increase in the concentration of a substance in the marine environment.
Introduction of micro-organisms to sterile articles, materials or tissues.
the addition of something that makes water, for example, impure or unsuitable for a particular use.
the introduction into water of sewage or other foreign matter that will render the water unfit for its intended use.
Foreign substance on the film, i.e., bugs, wax, fiber, trim, drool.
Seeds or genes that are unwanted in a particular place for any reason. See the Union of Concerned Scientists www.ucsusa.org
the process of making a material or surface unclean or unsuited for its intended purpose, usually by the addition or attachment of undesirable foreign substances.
To make impure, infected, corrupt, etc,. by contact with or addition of something.
The polluting of air, soils, improvements, or groundwater by the introduction of a hazardous substance into the environment.
Water is considered contaminated if it contains chemical or biological pollutants that are harmful to human health or the environment.
The introduction of unwanted microorganisms into a controlled experiment.
the deposition of unwanted radioactive material on the surfaces of structures, areas, objects, or people. It may also be airborne, external, or internal (inside components or people).[] [ Click "BackButton" for previous location
1 : the presence of particles, chemicals, and other undesirable substances, such as on or in a process tool, in a process liquid, or in a cleanroom environment. [SEMATECH] Also see area contamination and particulate contamination. 2 : three-dimensional foreign material adhering to a package (plastic or ceramic) or leadframe, or parent material displaced from its normal location and similarly adhered. Adherence means that the particle cannot be removed by an air or nitrogen blast at 20 psi. [SEMATECH] Also see stain.
The presence of a prohibited substance in a product or in the environment.
To make something impure by contact or mixture. Something that contaminates; this may be physical or chemical. Go to top
The introduction of substances harmful or potentially harmful to human health and the environment.
Introduction into water, air and soil of microorganisms, chemicals, toxic substances, wastes, or wastewater in a concentration that makes the medium unfit for its next intended use. Also applies to surfaces or objects and buildings, and various household and agricultural use products.
Undesirable material that causes poor wetting of chemical treatments such as adhesives or coatings.
The unintended presence of harmful substances or microorganisms, especially in food.
The condition of land or water where any chemical substance or waste has been added at above background level, and represents, or potentially represents, an adverse health or environmental impact
The general meaning derives from the Latin for to render impure.
an undesirable element, impure or unclean, something that is not supposed to be there (such as oil or insecticides in water)
Polluting or making something impure. Back to links
The deposit of radioactive material on the surface of structures, areas, objects, or personnel, following a nuclear explosion. This material generally consists of weapon debris becoming incorporated with particles of dirt, etc. Contamination can also arise from radioactivity induced in certain substances by the action of neutrons from a nuclear explosion. See; Radioactivity.
Entry of undesirable micro-organisms to some material or object.
Alteration of a material by the introduction of a chemical or other substance that makes the material unfit for a specified use.
any unwanted substance. Contamination of semiconductors may generally be categorized as metals, organic, oxide or particles.
The introduction to, or occurrence in, foods of any harmful substance which may compromise the safety or wholesomeness of those foods.
absorbtion of harmful radiation, such as that released when a nuclear weapon explodes.
a process by which harmful or unpleasant substances (such as strong odours, bacteria or poisons) get into or onto food.
The act of transferring harmful substances to a surface.
Any introduction into water of microorganisms or chemicals in a concentration that makes water unfit for its intended use.
is the deposition of unwanted radioactive material on the surfaces of structures, areas, objects, or personnel.
The presence of hazardous substances in quantities above regulatory limits or at levels representing elevated risk to those who are exposed.
The introduction of any contaminant into a water source or supply.
An unwanted and non-beneficial substance.
To make impure or unclean by intrusion of or contact with dirt or foulness from an outside source.
pollution by unwanted or damaging material, often bacterial, chemical or radioactive
Condition of impurity resulting from mixture of or contact with foreign substance.
Undesired foreign organisms(contaminants) in a growing medium. Often ocurring due to insufficient sterilisation or improper sterile technique.
