Glossary C

The Environmental Glossary. Letter C +++ Popular Articles: 'Community', 'Contaminant', 'Contamination'

A Chronic Effect is an adverse effect on a human or animal in which symptoms recur frequently or develop slowly over a long

A Chronic Exposure is Multiple exposures occurring over an extended period of time or over a significant fraction of an animal's or human's lifetime (Usually seven years to a lifetime

A Chronic Health Effect is the possible result of Exposure over many years to a drinking water Contaminant at levels above its Maximum Contaminant Level.

Chronic obstructive pulmonary disease (COPD): This term refers to Chronic lung disorders that result in blocked air flow in the lungs.

A Chronic Toxicity is the capacity of a substance to cause long-term poisonous health effects in humans, animals, fish, and other organisms. (See: Acute toxicity.)

A Churning is the process of stirring and agitating cream in the process of making butter. Churning

A Circle of Influence is the circular outer edge of a Depression produced in the water table by the pumping of water from a well. (See: cone of depression.)

A Cistern is Small tank or storage facility used to store water for a home or farm; often used to store rain water.

A Clarification is Clearing action that occurs during wastewater treatment when solids settle out.

A Clarifier is a tank in which solids settle to the bottom and are subsequently removed as sludge.

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