Glossary D

The Environmental Glossary. Letter D +++ Popular Articles: 'Deposition', 'Degradation', 'Diesel'

A Design Value is the monitored reading used by EPA to determine an area's air quality status; e.g., for ozone, the fourth highest reading measured over the most recent three years is

A design-based is Statistical inferences using methodology based on the sampling design. Such inferences derive their properties from the design protocols.

A design-unbiased is Indicates that an estimator is unbiased under the design protocol.

A Designated Pollutant is an Air Pollutant which is neither a Criteria nor hazardous pollutant, as described in the Clean Air Act, but for which new source performance standards exist

Deutsch: Vorgesehene Verwendung / Español: Uso designado / Português: Uso designado / Français: Utilisation désignée / Italiano: Uso designato /

A Designated Use is classification specified in water quality standards for each waterbody or segment describing the level of protection from perturbation afforded by the regulatory programs.

designated use classifications are classification of a waterbody or segment based on the purposes (beneficial uses) for which the waterbody may be used as specified in water quality standards.

Designated Uses are Those water uses identified in state water quality standards that must be achieved and maintained as required under the Clean Water Act.

Designer Bugs are Popular term for microbes developed through Biotechnology that can degrade specific toxic chemicals at their source in toxic waste dumps or in ground water.

A Destination Facility is the facility to which regulated medical waste is shipped for treatment and destruction, incineration, and/or disposal.

A Destratification is Vertical mixing within a lake or reservoir to totally or partially eliminate separate layers of temperature, plant, or animal life.

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