Water

Water

Water is a chemical compound with the chemical formula H20. A water molecule contains one hydrogen atom and two oxygen atoms. Water is a liquid at standard ambient temperature and pressure though it can be a solid (ice)in low temperatures or evaporate into water vapor a higher temperatures.

Industry: Natural environment

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Water

clarifier

Natural environment; Water

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

Class I Area

Natural environment; Water

Under the Clean Air Act. a Class I area is one in which visibility is protected more stringently than under the national ambient air quality standards; includes national parks, wilderness areas, ...

clay soil

Natural environment; Water

Soil material containing more than 40 percent clay, less than 45 percent sand, and less than 40 percent silt.

clean coal technology

Natural environment; Water

Any technology not in widespread use prior to the Clean Air Act Amendments of 1990. This Act will achieve significant reductions in pollutants associated with the burning of coal.

clean fuels

Natural environment; Water

Blends or substitutes for gasoline fuels, including compressed natural gas, methanol, ethanol, and liquified petroleum gas.

cleaner technologies substitutes assessment

Natural environment; Water

A document that systematically evaluates the relative risk, performance, and cost trade-offs of technological alternatives; serves as a repository for all the technical data (including methodology ...

cleanup

Natural environment; Water

Actions taken to deal with a release or threat of release of a hazardous substance that could affect humans and/or the environment. The term "cleanup" is sometimes used interchangeably with the terms ...