Natural environment

Natural environment

Related to any physical feature of the earth's natural environment.

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Natural environment > Water

dosimeter

Natural environment; Water

An instrument to measure dosage; many so-called dosimeters actually measure exposure rather than dosage. Dosimetry is the process or technology of measuring and/or estimating ...

dot reportable quantity

Natural environment; Water

The quantity of a substance specified in a U.S. Department of Transportation regulation that triggers labeling, packaging and other requirements related to shipping such ...

downstream processors

Natural environment; Water

Industries dependent on crop production (e.g. canneries and food processors).

draft permit

Natural environment; Water

A preliminary permit drafted and published by EPA; subject to public review and comment before final action on the application.

drainage

Natural environment; Water

Improving the productivity of agricultural land by removing excess water from the soil by such means as ditches or subsurface drainage tiles.

drilling fluid

Natural environment; Water

Fluid used to lubricate the bit and convey drill cuttings to the surface with rotary drilling equipment. Usually composed of bentonite slurry or muddy water. Can become ...