Pollution

A change in the physical, chemical, or biological characteristics of the air, water, or soil that can affect the health, survival, or activities of humans in an unwanted way. Some expand the term to include harmful effects on all forms of life.

pollution

(Learning Modules / Geography / Geography of energy) The modification of the environment by substances or chemicals in a way that produces negative impacts.

pollution

(Learning Modules / Geography / Urban sustainability) The presence of a substance in the environment that because of its chemical composition or quantity prevents the functioning of natural processes and produces undesirable environmental and health effects. Can be land, water or air based.

Pollution

This occurs when substances enter an environment that are not naturally occurring or exceed naturally occurring levels.

pollution

(Living things in their environment) contamination of the environment, usually by chemicals

Pollution

Generally, the presence of a substance in the environment that because of its chemical composition or quantity prevents the functioning of natural processes and produces undesirable environmental and health effects.Under the Clean Water Act, for example, the term has been defined as the man-made or man-induced alteration of the physical, biological...
Found on http://www.epa.gov/OCEPAterms/

pollution

[Noun] The state of being impure or unfit for use, contaminated; the substance that pollutes.
Example: After the oil spill the pollution spread along the coast.
Found on http://www.bbc.co.uk/skillswise/glossary/

pollution

[n] - undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
Found on http://www.webdictionary.co.uk/definition.php?query=pollution

Pollution

The presence of a substance in the environment that because of its chemical composition or quantity prevents the functioning of natural processes and produces undesirable environmental and health effects.
Found on http://www.encyclo.co.uk/local/20453

Pollution

The release into any environmental medium from any process or substances which are capable of causing harm to humans or any other living organisms supported by the environment.
Found on http://www.encyclo.co.uk/local/20474

Pollution

The undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
Found on http://www.rarespark.co.uk/travel%20plan%20glossary.htm

Pollution

The contamination of an environment by artificially produced contaminants with the result that organisms are harmed
Found on http://www.encyclo.co.uk/local/20634

Pollution

is the adverse alteration of land, air or water by a substance. When any alteration is considered adverse, a substance becomes a pollutant.
Found on http://www.epaw.co.uk/EPT/glossary.html

Pollution

the introduction by man, directly or indirectly, of substances or energy to the marine environment resulting in deleterious effects.
Found on http://www.encyclo.co.uk/local/20740

Pollution

An undesirable contaminate (gas, liquid, noise, solid) which has been released into, and is now a part of, the environment.
Found on http://www.frontierassoc.net/greenaffordablehousing/tools/ChemicalTerms.sht

Pollution

Pol·lu'tion noun [ Latin pollutio : confer French pollution .] 1. The act of polluting, or the state of being polluted (in any sense of the verb); defilement; uncleanness; impurity. 2. (Medicine) The emission of semen, or sperm, at other times than in sexual interc...
Found on http://www.encyclo.co.uk/webster/P/119

pollution

<ecology> The changing of a natural environment, either by natural or artificial means, so that the environment becomes harmful to the living things normally found in it. ... most often this refers to the input of toxic chemicals into the environment. ... (09 Oct 1997) ...
Found on http://www.encyclo.co.uk/local/20973

pollution

noun undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
Found on http://wordnetweb.princeton.edu/perl/webwn?s=pollution

pollution

(pә-loo´shәn) a process of defiling or making impure, especially contamination by noxious substances.
Found on http://www.encyclo.co.uk/local/21001

Pollution

• (n.) The act of polluting, or the state of being polluted (in any sense of the verb); defilement; uncleanness; impurity. • (n.) The emission of semen, or sperm, at other times than in sexual intercourse.
Found on http://thinkexist.com/dictionary/meaning/pollution/

pollution

(from the article `caste`) ...to raise themselves in the social order. Such efforts have been more successful in the case of low but ritually pure castes than in the case of ... The second reason, closely related to the foregoing, is that one element of dogma in every religion is the definition of polluting, or supernaturally ... ......
Found on http://www.britannica.com/eb/a-z/p/89

pollution

the addition of any substance or form of energy (e.g., heat, sound, radioactivity) to the environment at a rate faster than the environment can ... [46 related articles]
Found on http://www.britannica.com/eb/a-z/p/89

pollution

pollution 1. The introduction of harmful substances or products into the environment. 2. An undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities. 3. The act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors. 4. Ety...
Found on http://www.wordinfo.info/words/index/info/view_unit/1221/2

Pollution

Physical, chemical, or biological change in the characteristics of some component of the atmosphere, hydrosphere, lithosphere, or biosphere that adversely influences the health, survival, or activities of humans or other living organisms.
Found on http://www.physicalgeography.net/physgeoglos/p.html

pollution

any addition of foreign matter, solid, liquid or gaseous that can produce a permanent reduction of dielectric strength or surface resistivity of the insulation NOTE - Ionized gases of a temporary nature are not considered as to be a pollution.
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=442-01-28
No exact match found