Glossary D
The Environmental Glossary. Letter D +++ Popular Articles: 'Development', 'Disease', 'Distribution function'
A Delegated State is a state (or other governmental entity such as a tribal government) that has received authority to administer an Environmental regulatory program in lieu of a federal counterpart.
A Demand Side Management (DSM) is an attempt by utilities to reduce customers' demand for electricity or energy by encouraging efficiency.
A Demand-side Waste Management is Prices whereby consumers use purchasing decisions to communicate to product manufacturers that they prefer environmentally sound products packaged with the least amount of waste, made from recycled or recyclable materials, and containing no hazardous substances.
A demersal is fish that live on or near the ocean bottom. They are often called Benthic fish, groundfish, or bottom fish.
- Dense Non-Aqueous Phase Liquid (DNAPL) : A Dense Non-Aqueous Phase Liquid (DNAPL) is Non-aqueous phase liquids such as chlorinated hydrocarbon solvents or petroleum fractions with a specific gravity greater than 1.0 that sink through the water column until they reach a confining layer.