
1) Befoulment 2) Contamination 3) Defilement 4) Filth 5) Griminess 6) Infection 7) Menace 8) Smog
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https://www.crosswordclues.com/clue/pollution

1) Defilement 2) Environmental condition 3) Haze 4) Impureness 5) Impurity 6) Smoke 7) The state of being polluted
Found on
https://www.crosswordclues.com/clue/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/
[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/

(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

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

<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) ...
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http://www.encyclo.co.uk/local/20973

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

Materials that are not supposed to be in the river make it dirty.
Found on
http://www.encyclo.co.uk/local/21748

Alteration of the environment, as through the introduction of hazardous or detrimental substances, h
Found on
http://www.encyclo.co.uk/local/22399

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.
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http://www.encyclo.co.uk/visitor-contributions.php

(Learning Modules / Geography / Geography of energy) The modification of the environment by substances or chemicals in a way that produces negative impacts.
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http://www.encyclo.co.uk/visitor-contributions.php

(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.
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http://www.encyclo.co.uk/visitor-contributions.php

(Living things in their environment) contamination of the environment, usually by chemicals
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http://www.encyclo.co.uk/visitor-contributions.php
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

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

Degradation of the natural environment by chemicals, oil, trash or other substances.
Found on
http://www.pbs.org/emptyoceans/glossary.html

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

(L: polluere to defile, contaminate) the contamination of a natural ecosystem by wastes from human activities. The contaminants may be nutrients, that initially stimulate growth of primary producers, or they may be chronic toxins.
Found on
http://www.seafriends.org.nz/books/glossary.htm

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...
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http://www.wordinfo.info/words/index/info/view_unit/1221/2

harmful substances that get into the environment
Found on
https://sciencetrek.org/sciencetrek/topics/oceans/glossary.cfm

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...
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https://www.encyclo.co.uk/local/20094

An undesirable contaminate (gas, liquid, noise, solid) which has been released into, and is now a part of, the environment.
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https://www.encyclo.co.uk/local/20855
noun undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities
Found on
https://www.encyclo.co.uk/local/20974

Harmful effect on the environment of by-products of human activity, principally industrial and agricultural processes – for example, noise, smoke, car emissions, pesticides, radiation, sewage disposal, household waste, and chemical and radioactive effluents in air, seas, and rivers. Air pollution contributes to the greenhouse effect. Pollu...
Found on
https://www.encyclo.co.uk/local/21221
No exact match found.