Glossary
- dangersearch for term
- The signal word used on labels of highly hazardous pesticides due to serious health or environmental hazards.
- dermal exposuresearch for term
- Contact with skin.
- detritalsearch for term
- Loose material (such as rock fragments or organic particles) that results directly from disintegration.
- diffusionsearch for term
- To extend freely (extend, scatter). Dissolved substances moving from a region of higher to lower concentration.
- directions for usesearch for term
- The instructions found on pesticide labels indicating the proper procedures for mixing and application.
- dissipationsearch for term
- The slow reduction in concentration and eventual loss of a substance through degradation, dilution, or both processes.
- dissolved oxygensearch for term
- Oxygen gas that is dissolved in water. Fish need oxygen just as land animals do.
- dosesearch for term
- The quantity of chemical exposure per unit of time.
- drawdownsearch for term
- Also called drydown or dewatering, reduction of water body level to control exposed plants and improve substrate to support plant diversity.
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