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
The act or process of contaminating; pollution; defilement; taint; also, that which contaminates
When a substance is present in the environment at high enough levels to make water unfit for drinking or other intended uses Leaking waste lagoons and run-off from sprayfields can contaminate water supplies by adding unnaturally high amounts of nitrates (see lagoon, sprayfield, nitrates)
a general term signifying the introduction into water of microorganisms, chemicals, wastes or sewage which renders the water unfit for its intended use
the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors the state of being contaminated
A buildup of foreign matter on the radiation-entrance window caused by particles in the SEM chamber, e g , due to outgasing by samples or oil from diffusion pumps on the SEM Contamination layers absorb X-rays and thus reduce efficiency, distort spectra and affect the results
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
The deposition of radioactive material on the surfaces of structures, areas, objects, or people The material also may be airborne, external, or internal (inside components or people)
the tendency of unconscious contents to run together, making them hard to tell apart from one another Discrimination of each falls to consciousness As each personification from down under connects to awareness, it differentiates from the other figures contaminating it
the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors
Radioactive material deposited or dispersed in materials or places where it is not wanted
The presence of any substance in a product that makes it impure, unclean, or unfit for use There are three types of contamination: microbial, particulate, and cross-contamination
Presence of radioactive substances in a material, on the surface of objects or in places where they should not be present or where they can have harmful consequences For humans, a distinction is made between external and internal contamination In the case of internal contamination, radioactive particles are present in the body, for instance through the inhalation or ingestion of solids, liquids or gas contaminated by radioactive substances In the case of external contamination, the radioactive substances are in contact with the skin or the external parts of the organism
An impairment of the quality of water by microorganisms, chemicals, sewage or industrial waste which renders water unfit for its intended use In California, this means the water poses an actual hazard to public health
Introduction into water, air and/or 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 of objects and buildings, and various household and agricultural use products