Decay Rate
Math function that reflects the declining emissions
of a product over time.
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Deconstruction
A process to carefully dismantle
or remove useable materials from structures,
as an alternative to demolition. It
maximizes the recovery of valuable building
materials for reuse and recycling and minimizes
the amount of waste land-filled. Deconstruction
options may include: Reusing the entire building
by remodeling, moving the structure to a new
location or taking the building apart to reuse
lumber, windows, doors, and other materials.
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Deep-well Injection
Deposition of raw or treated, filtered hazardous waste
by pumping it into deep wells, where it is contained in the pores
of permeable subsurface rock.
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Demand-side Waste Management
Process 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.
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Disposal
Final placement or destruction of toxic,
radioactive or other wastes; surplus or banned pesticides or other chemicals;
polluted soils; and drums containing hazardous materials from removal
actions or accidental releases. Disposal may be accomplished through
use of approved secure landfills, surface impoundments, land farming,
deep-well injection, ocean dumping or incineration.
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Dose-response
Relationship between exposure levels and
adverse effects.
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Dynamic Environmental Chamber
Well-controlled system (including temperature,
relative humidity (RH) and air quality/purity) that utilizes realistic
air flows for the assessment of chemical emissions from products and
materials
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