Environment terminology · MLC-0121

Environment terms: D (1,538)

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• Distillate Fuel EntityAny refiner, importer, distributor, retailer or wholesale-purchaser consumer of any distillate fuel (or other...
• Distillate Fuel FacilityAny place, or series of places, where an entity produces, imports, or maintains custody of any distillate...
• Distillate fuel oil1. A general classification for the petroleum fractions produced in conventional distillation operations...
• Distillate Oil1. Fuel oils that contain 0.05 weight percent nitrogen or less and comply with the specifications for fuel...
• Distillate ReceiverOverhead receivers, overhead accumulators, reflux drums, and condenser(s) including ejector condenser(s)...
• Distillation1. The act of purifying liquids through boiling, so that the steam or gaseous vapors condense to a pure...
• Distillation & Reverse Osmosis BrineThe concentrated seawater (brine) produced as a byproduct of the processes used to generate freshwater from...
• Distillation BottomsResidues that form at the bottom of a distillation unit.
• Distillation OperationOperation separating one or more feed stream(s) into two or more exit stream(s), each exit stream having...
• Distillation Unit1. Device or vessel in which distillation operations occur, including all associated internals (such as trays...
• Distillers Corn OilCorn oil recovered at any point downstream of when a dry mill ethanol or butanol plant grinds the corn...
• Distillers Sorghum OilGrain sorghum oil recovered at any point downstream of when a dry mill ethanol or butanol plant grinds the...
• Distorted marketOne that does not experience free and open competition due to government interventions and/or prevailing...
• Distorted Market EconomyOne that does not experience free and open competition due to government interventions and/or prevailing...
• DistressAn adverse effect on animals when they cannot escape from or adapt to physical or mental stress.
• Distribute in Commerce1. To sell in commerce, to introduce or deliver for introduction into commerce, or to hold after its...
• Distribute or SellActs of distributing, selling, offering for sale, holding for sale, shipping, holding for shipment...
• Distribute Solely for ExportTo process or distribute in commerce solely for export from the United States under the following...
• Distributed Applications SupportIncludes a wide range of tasks such as operational support, deployment of application and data base upgrades...
• Distributed Denial of ServiceA denial of service technique that uses numerous systems to perform the attack simultaneously.
• Distributed Generation1. Small, modular, decentralized, grid-connected or off-grid energy systems located in or near the place...
• Distributed ModelA model in which the physical heterogeneities of the catchment are included.
• Distributed Structure-Searchable ToxicityA project of EPA's Office of Research and Development that is helping to build a public data foundation for...
• Distributed Structure-Searchable Toxicity Database NetworkThe Distributed Structure-Searchable Toxicity Database Network, a project of the EPA's National Center for...
• Distributed Systems SupportProvides a wide range of services designed to ensure secure, reliable, and efficient system implementation of...
• Distribution1. A set of values derived from a specific population or set of measurements that represents the range and...
• Distribution ApportionmentThe relationship between the proportion of the outside air (OA) quantity being delivered to portion a...
• Distribution AutomationDistribution Automation (DA) is a family of technologies including sensors, processors, communication...
• Distribution BoxA level, watertight structure that receives septic tank effluent and distributes it via gravity in...
• Distribution (Epidemiology)In epidemiology, the frequency and pattern of health-related characteristics and events in a population. In...
• Distribution FacilitiesPipes, treatment, storage and other facilities used to distribute drinking water to end users.
• Distribution FacilityPipes, treatment, storage and other facilities used to distribute drinking water to end users.
• Distribution in Commerce1. Same meaning as in section 3 of the Act (15 U.S.C. 2602).(6)
• Distribution IntegrityThe relationship between the outside air (OA) quantity entering the HVAC equipment and the OA that actually...
• Distribution of a VariableVariation of characteristics across cases.
• Distribution Pipeline1. A pipeline that conveys gas from a transmission pipeline to its ultimate consumer.
• distribution systemA network of pipes leading from a treatment plant to customers' plumbing systems.
• Distributional analysisAssesses changes in social welfare by examining the effects of a regulation across different subpopulations...
• Distributional EffectsEffects of programs that result in a redistribution of resources in the general population.
• distribution-free methodA method of testing a hypothesis or of setting up a confidence interval that does not depend on the form of...
• Distributive JusticeRefers to allocating benefits and harms fairly.
• Distributor1. Any person to whom a consumer product is sold or supplied for the purposes of resale or distribution in...
• Distributor, Distributor ProductA registrant may distribute or sell a registered product under a distributor's name. On the label of a...
• District Improvement FinancingTaps the anticipated benefits of future development (such as increased property tax revenues) to direct tax...
• Disturbance1. Any event or series of events that disrupts ecosystem, community, or population structure and changes...
• Disturbance EventAn uncommon occurrence from a natural agent, such as floods, fires, or hurricanes, that has a significant...
• Disturbance Monitoring EquipmentDevices capable of monitoring and recording system data pertaining to a Disturbance. These include: Sequence...
• Disturbed AreaAn area where vegetation, topsoil, or overburden is removed or upon which topsoil, spoil, coal processing...
• Disturbed EcosystemAn ecosystem that has been changed by an intense temporary event
• Disutility CostCosts include all the factors leading to the diminished well-being of a patient due to illness or premature...
• disutility costsCosts include all the factors leading to the diminished well-being of a patient due to illness or premature...
• DiuresisIncreased secretion of urine
• Diuretic1. Agent that increases urine production
• Diurnal1. Actions or processes having a period or a cycle of approximately one tidal-day or are completed within a...
• Diurnal Animal1. Animal active during the daylight hours.
• Diurnal Breathing Loss1. Evaporative emissions as a result of the daily range in temperature.
• Diurnal Emissions1. Evaporative emissions that occur as a result of venting fuel tank vapors during daily temperature changes...
• Diurnal Tidal FlowTidal ocean waters where, due to the geometry of the ocean basin and obstructions presented by land, a second...
• Divalent(die-VAY-lent) Having a valence of two, such as the ferrous ion, Fe2+.
• DivergenceA horizontal flow of water, in different directions, from a common center or zone; it is often associated...
• Divergent Active Continental MarginAreas where tensional tectonic forces result in the crustal rocks being stretched and-ultimately - split...
• Divergent Plate BoundaryA boundary in which two tectonic plates move apart.
• Diversion1. Use of part of a stream flow as a water supply.
• Diversion ChannelA channel with a supporting ridge on the lower side constructed across or at the bottom of a slope for the...
• Diversion DamA dam built to divert water from a waterway or stream into a different watercourse.
• Diversion RateThe percentage of waste materials diverted from traditional disposal such as landfilling or incineration to...
• Diversity1. Physical or biological complexity in a system. Usually a measure of the number of different species in an...
• Diverter ValveFow control device that prevents room air from passing through a refrigerated condenser when the door of the...
• DL-AlanineA racemic mixture of alanine, a non-essential alpha-amino acid. Alanine is one of the most common residues...
• DL-Arginine HydrochlorideThe hydrochloride salt form of the amino acid DL-arginine, a racemic mixture of arginine with potential...
• DL-PhenylalanineA racemic mixture of phenylalanine, an aromatic amino acid with antidepressant, analgesic and appetite...
• DL-ProlineA racemic mixture of proline, an imino acid. Proline is found in cartilage and is important for maintaining...
• dmngbWritten by David M. Gay, this code is used for all models that can be reparameterized so that BMD appears...
• DNA AdductionAdduction involves formation of a covalent bond between a molecule and the DNA macromolecule.
• DNA BindingUsed in reference to proteins or low molecular weight solutes (ligands) that interact specifically with DNA...
• DNA Break-Induced ReplicationA type of DNA repair that uses homologous recombination to resolve chromosomal double strand breaks. This...
• DNA CrosslinkingDNA Crosslinking involves the formation of a covalent bond between two bases on DNA. (NCI)
• DNA DamageDrug-, radiation-induced, or spontaneous injuries to DNA that introduce deviations from its normal...
• DNA (deoxyribonucleic acid)The "blueprints" that carry our genetic information. DNA ensures that a perfect copy of the original cell is...
• DNA FoldingEnergetics and biophysical mechanisms of DNA higher order structure.
• DNA FragmentationA process that results in the breaking of macromolecular DNA into small pieces.
• DNA Grove BindingDNA Groove Binding involves temporary non-covalent interaction through intermolecular physical forces of...
• DNA HybridizationUse of a segment of DNA, called a DNA probe, to identify its complementary DNA; used to detect specific genes.
• DNA HydroxymethylationA DNA modification process where a hydrogen at the C5-position of a cytosine residue is replaced with a...
• DNA IntegrationAny DNA sequence rearrangement in which double-stranded DNA from a donor molecule is incorporated into host...
• DNA IntercalationDNA Intercalation involves insertion by covalent linkage of a molecule into the double-stranded...
• DNA Interstrand Cross-Link RepairDNA interstrand cross-links (ICLs) are very toxic to dividing cells, because they induce mutations...
• DNA MaintenanceDNA Maintenance involves cellular mechanisms that maintain DNA integrity. In many organisms, maintenance of...
• DNA Maintenance ProcessA DNA Maintenance Process consists of activities of biologic molecules, complexes, or subcellular components...
• DNA MethylationThe process by which methyl groups are added to nucleotides in genomic DNA.
• DNA Methylation InhibitionDNA Methylation Inhibition involves interference with, or restraint of, the process by which methyl groups...
• DNA Methylation RegulationDNA Methylation Regulation involves cellular mechanisms that control covalent addition of methyl groups to...
• DNA Microarray ChipAn orderly array of DNA samples affixed to a support. Using robots thousands of samples can be arrayed on a...
• DNA Modification ProcessBiological processes that involve adding/removing chemical moieties to/from DNA, including methylation...
• DNA Nitrogenous BaseA nitrogen-containing molecule having the chemical properties of a base. DNA contains the nitrogenous bases...
• DNA Post-Replication ModificationPost-Replication Modification involves covalent alteration of DNA after replication, e.g., methylation at...
• DNA Recombination ProcessAny type of DNA sequence rearrangement involving possible exchange and frequent loss of segments of DNA by...
• DNA RepairEnzymatic restoration of DNA structure after chemical, radiation, or spontaneous damage.
• DNA Repair GeneDNA repair genes encode DNA repair proteins, involved in enzymatic restoration of DNA structure after...
• DNA Repair InhibitionDNA Repair Inhibition involves interference with, or restraint of, the enzymatic restoration of a continuous...
• DNA Replication1. The process by which the two strands of a DNA double helix separate, allowing each strand to act as a...
• DNA Replication DamageDNA sequence errors introduced via DNA replication.
• DNA Replication InductionDNA Replication Induction involves initiation of activities of biologic molecules or complexes involved in...
• DNA Replication InhibitionDNA Replication Inhibition involves interference with, or restraint of, the activities of biologic molecules...
• DNA Replication InitiationDNA polymerases are not capable of de novo DNA synthesis and require synthesis of a primer, usually by a...
• DNA Replication LicensingA process that limits duplication of the genome to once per cell division cycle. In eukaryotes replication...
• DNA Replication PrimerIn genomics, a short pre-existing single-stranded polynucleotide chain to which new deoxyribonucleotides can...
• DNA Replication ProofreadingA function of the mismatch repair (MMR) system that promotes genomic fidelity by repairing base-base...
• DNA Replication TimingThe process that establishes the temporal order of the replication of segments of DNA along a chromosome or...
• DNA Replication-Associated ProcessAny subcellular or molecular event, process, or condition immediately and directly involved in the molecular...
• DNA Restriction Modification EnzymesSystems consisting of two enzymes, a modification methylase and a restriction endonuclease. They are closely...
• DNA Sequence Alteration ProcessAny subcellular process affecting molecular sequence that results in a specific and defined change in the...
• DNA Sequence RearrangementAny process affecting a DNA sequence that results in the gain, loss or exchange of DNA between chromosomes...
• DNA Sequencing1. A method, sometimes automated, for determining the base sequence.
• DNA Strand BreakA DNA Strand Break involves one or more disruptions of the covalent linkages among phosphodeoxyribose...
• DNA SynthesisDNA Synthesis is the polymeric linkage of deoxyribose moieties (with adenine, guanine, cytosine, or thymine...
• DNA Synthesis InductionDNA Synthesis Induction consists of the initiation of activities involved in the polymeric linkage of...
• DNA Synthesis InhibitionDNA Synthesis Inhibition involves interference with, or restraint of, the activities involved in the...
• DNA Synthesis RescueDNA Synthesis Rescue involves resumption of DNA synthesis, polymeric linkage of deoxyribonucleotides by...
• DNA Topology RegulationDNA Topology Regulation involves DNA topoisomerases that catalyze essential DNA transaction processes...
• DNA Virus1. A virus whose nucleic acid is DNA.
• DNA-Directed RNA PolymerasesEnzymes that catalyze DNA template-directed extension of the 3'-end of an RNA strand one nucleotide at a...
• DNA-Protein InteractionThe biochemical and biophysical properties governing the binding of proteins to DNA
• Dobson Unit1. A measurement of column ozone levels. If 100 DU of ozone were brought to the Earth's surface, it would...
• DockTo remove a cow's tail. This practice may keep cows udders cleaner, but may also result in cows being less...
• Docket1. A collection of documents related to a rulemaking or other action. More information on dockets at...
• Docket ID1. Unique identifier established for a docket.
• Docket TypePrimary classification of a docket as either Rulemaking or Nonrulemaking.
• DocketsManagement of the Agency's electronic and physical maintenance of regulatory and non-regulatory dockets...
• DockingA binding interaction that results in localization of the ligand.
• Document1. A term that includes rules, proposed rules, notices, supporting and related materials, public submissions.
• Document AbstractSummary of the document.
• Document CollectionA document collection is a set of documents that are logically related, usually by their content, target...
• Document Contingency PlanA document setting out an organized, planned, and coordinated course of action to be followed in case of a...
• Document Control1. The policies and procedures used by an organization to ensure that its documents and their revisions are...
• Document DetailsAdditional descriptive details about a document.
• Document IDUnique identifier established for a document. This includes the agency acronym, the year created, the docket...
• document managementSoftware that controls and organizes documents throughout an enterprise [and] incorporates document and...
• Document ReviewA technique of data collection involving the examination of existing records or documents.
• Document ReviewerPerson responsible for approving the initial deposit of an author manuscript into NIHMS and then approving...
• Document Submission1. To send or transmit a document, information, or correspondence to the person specified in accordance with...
• Document SubmitterIndividual who deposits files in NIHMS.
• Document Sub-TypeA secondary classification of a document that is unique to each agency.
• Document TitleFormal title of the document.
• Document TrackingActivities related to the proper maintenance, tracking, publication, and archiving of official Agency...
• DOCUMENTARY1. In audiovisual records, a nonfiction motion picture film having a theme or viewpoint but drawing its...
• documentary materials1. A collective term for records, nonrecord materials, and personal papers that refers to all media on which...
• Documentation1. The act or process of substantiating by recording actions and/or decisions. See also ADEQUACY OF...
• DOE-2 ModelThe DOE-2 Model is a computer program that simulates hourly building energy use. It is an international...
• DoersSurvey respondents who report participating in a specified activity.
• Dog DiseasesUse for diseases of the domestic dog (Canis familiaris); For diseases of wild dogs, wolves, foxes, and other...
• Do-it-Yourselfer Used Oil Collection CenterAny site or facility that accepts/aggregates and stores used oil collected only from household...
• Do-it-YourselfersIndividuals who generate used oil through the maintenance of their own personal vehicles and equipment and...
• DoldrumsOlder name used by sailors for the Intertropical Convergence Zone.
• Dollar yearThe year to which the purchasing power of a dollar is indexed. For example, if costs and benefits are...
• Domain1. The areal extent of a resource; the region occupied by a resource.
• Domain Boundaries (spatial and temporal)The limits of space and time that bound a model's domain and are specified within the boundary conditions...
• Domain Boundary DevelopmentDevelopment of the limits of extent and resolution with respect to time and space for which the model has...
• Domain Name1. A domain name locates an organization or other entity on the Internet. For example, the domain name...
• Domain Name Service ServerA domain name service server contains a database of names and their corresponding IP address. IP addresses...
• Domain (spatial and temporal)The spatial and temporal domain of a model cover the extent and resolution with respect to time and space for...
• domainsThe area in space or time period over which a prediction is made.
• DomeAn uplift that is circular or elliptical in map view, with beds dipping away in all directions from a central...
• Domestic AnimalLivestock, including poultry, and other farmed birds or mammals; does not include companion animals such as...
• Domestic ApplicationPesticide application in and around houses, office buildings, motels, and other living or working areas.
• Domestic Plumbing ProblemA coliform contamination problem in a public water system with more than one service connection that is...
• Domestic SeptageEither liquid or solid material removed from a septic tank, cesspool, portable toilet, Type III marine...
• Domestic SewageWaste and wastewater from humans or household operations that is discharged to or otherwise enters a...
• Domestic Source EmissionEmission with its source in the United States.
• Domestic TerrorismInvolve acts dangerous to human life that are a violation of the criminal laws of the United States or of any...
• Domestic Terrorist ActivityActivities with the following three characteristics: Involve acts dangerous to human life that violate...
• Domestic WasteMaterials discharged from sinks, showers, laundries, safety showers, eye-wash stations, hand-wash stations...
• Domestic Wastewater1. Also called sanitary wastewater, consists of wastewater discharged from residences and from commercial...
• Domestic Water Usewater used for indoor and outdoor household purposes - all the things you do at home: drinking, preparing...
• Dominant Plant SpeciesPlant species or species groups, which by means of their number, coverage, or size, have considerable...
• DominoDomino is the name of the applications and messaging server software from IBM's Lotus Notes, a sophisticated...
• Domoic AcidAn acidic cyanotoxin found associated with certain diatom blooms. Domoic acid can bioaccumulate in marine...
• DONATION1. In records management, the transfer of temporary records from a Federal agency to an eligible person or...
• donlp2Written by P. Spelluci, this code solves optimization problems with non-linear constraints. It is used in...
• Donut AreaGeographic areas outside a metropolitan planning area boundary, but inside the boundary of a nonattainment or...
• DOP3D FileThis file is identical to the corresponding DOP file, with the exception of the modified DSSTox_FileName...
• DopamineOne of the catecholamine neurotransmitters in the brain; it is derived from tyrosine and is the precursor to...
• DopantA chemical element (impurity) added in small amounts to an otherwise pure semiconductor material to modify...
• DopingIntroduction of a trace impurity into ultrapure crystals to obtain desired physical properties.
• Doppler RadarRadar that measures speed and direction of a moving object. such as water or ice particles. birds. and...
• DormancyAn inactive or quiesent period in which seeds, spores, bulbs, buds, and other vegetative and reproductive...
• Dormancy BreakingThe end of a state of inactivity in plants, often initiated by a change in the temperature between seasons.
• dormant post plantingsPlantings of dormant cottonwood, willow, poplar, or other species embedded vertically into streambanks to...
• DorsalRelating to or situated on an animal's back.
• Dosage1. The quantity of a chemical administered to an organism.
• Dose1. In terms of monitoring exposure levels, the amount of a toxic substance taken into the body over a given...
• Dose Additivity1. The Agency's assumption when evaluating the joint risk of chemicals that are toxicologically similar and...
• Dose Equivalent1. The product of the absorbed dose from ionizing radiation and such factors as account for differences In...
• Dose Metric KineticsMeasurements of the rate of substance metabolism as a function of dosage.
• Dose ModelRepresentation of processes that occur when a toxicant is taken into the body
• Dose Rate1. In exposure assessment, dose per time unit (e.g. mg/day), sometimes also called dosage.
• Dose Response1. How an organism's response to a toxic substance changes as its overall exposure to the substance changes...
• Dose Response CurveGraphical representation of the relationship between the dose of a stressor and the biological response...
• dose response functionsThe relationship between the effects (response) on an organism or system and the amount (dose) of some...
• dose-effect relationship1. Relationship between the total amount of an agent administered to, taken up or absorbed by an organism...
• Dose-Response Assessment1. A determination of the relationship between the magnitude of an administered, applied, or internal dose...
• Dose-Response AssociationBetween an exposure and health outcome that varies in a consistently increasing or decreasing fashion as the...
• Dose-Response EvaluationA component of risk assessment that describes the quantitative relationship between the amount of exposure to...
• Dose-Response ModelA mathematical relationship (function) that relates (predicts) a measure of an effect to a dose.
• Dose-Response Relationship1. The relationship between a quantified exposure (dose) and the proportion of subjects demonstrating...
• Dose-Response TrendRelationship between incidence or severity of a biological effect and a function of dose. It is simply the...
• Dosimeter1. An instrument to measure dosage; many so-called dosimeters actually measure exposure rather than dosage...
• Dosimetry1. The measurement or calculation of the amount of radiation energy absorbed by materials, organisms, or...
• dosing and restingA configuration in which a specific volume of effluent is delivered to a component according to a prescribed...
• DOT Reportable QuantityThe quantity of a substance specified in a U.S. Department of Transportation regulation that triggers...
• Dots-per-inchA measure of output resolution produced by printers or monitors.
• Double Blind1. A sample submitted to evaluate performance with concentration and identity unknown to the analyst and...
• Double Block and Bleed System1. Two block valves connected in series with a bleed valve or line that can vent the line between the two...
• Double Cortex SyndromeA developmental brain abnormality characterized by atypical migration of neurons during cortical development.
• Double CropTwo different crops grown on the same area in one growing season.
• Double Declining Balance DepreciationDouble declining balance (DDB) depreciation is an accelerated depreciation method in which first year...
• Double page spreadtwo facing pages of booklet, newspaper or magazine where the textual material on the left hand side continues...
• Double sample1. A sample of a sample. Specifically in EMAP, resource attributes from remote sensing or cartographic...
• Double Strand Break RepairMechanisms of DNA repair associated with radiation damage.
• Double Wash/RinseMinimum requirement to cleanse solid surfaces (both impervious and nonimpervious) two times with an...
• Double-CountingUse of the same association in two different types of evidence.
• Double-Phase Aerosol Air FreshenerAerosol air freshener with liquid contents in two or more distinct phases that requires the product container...
• DourineA disease of horses and donkeys caused by Trypanosoma equiperdum. The disease occurs in Africa, the Americas...
• Down paymentThe initial amount paid at the time of purchase or construction expressed as a percent of the total initial...
• Down SyndromeA genetic condition usually caused by having an extra copy of the 21st chromosome.
• downdriftThe location of one section or feature along the coast in relation to another; often used to refer to the...
• Downer CowA cow unable to arise due to disease or injury.
• DowngradienatThe direction that groundwater flows; similar to "downstream" for surface water.
• Downgradient1. It the direction of decreasing static (potentiometric) head.
• DownlinkThe part of a satellite system that includes the satellite itself, the receiving earth station and the signal...
• Downscale Climate ModelingUses large scale (global or regional) climate data to predict local impacts.
• Downstream EmissionEmissions that occur at life-cycle stages after use: e.g., waste management.
• Downstream EmissionsEmissions that occur at life-cycle stages after use: e.g., waste management.
• Downstream ProcessorsIndustries dependent on crop production (e.g. canneries and food processors).
• Downstream watersEPA interprets “downstream waters” to include both intra- and interstate waters, as well as waters that form...
• downwelling1. The downwelling movement of an air mass in the atmosphere.
• Downwelling Longwave IrradianceThe total diffuse and direct radiant energy, at wavelengths longer than approximately 4 µm, that is being...
• Downwelling Shortwave IrradianceThe total diffuse and direct radiant energy that comes from some continuous range of directions, at...
• Downwind Ambient Air QualityQuality of ambient air that is in the direction the wind is blowing.
• Downwind PopulationUrbanized areas of human population in the direction in which the wind blows.
• Downy MildewA fungus forming grayish downy patches, usually on the underside of leaves.
• Downy MildewsA fungus forming grayish downy patches, usually on the underside of leaves.
• DoxazosinA prazosin-related compound that is a selective alpha-1-adrenergic blocker.
• DP HoleHole in the ground made with DP equipment.
• DP rodSmall diameter hollow steel rod that is pushed, driven, or vibrated into the ground in order to investigate...
• DPD(pronounce as separate letters) A method of measuring the chlorine residual in water. The residual may be...
• D-PhenylalanineThe synthetic dextro isomer of phenylalanine, an essential amino acid with anti-depressant and analgesic...
• Draft1. The act of drawing or removing water from a tank or reservoir.
• Draft AnimalA domesticated animal trained to pull heavy loads, such as plows for farming purposes. Examples include...
• Draft Permit1. A document prepared under 40 CFR 124.6 indicating the Director's tentative decision to issue, deny...
• Draft TubeWater conduit, which can be straight or curved depending upon the turbine installation, which maintains a...
• DraglineA type of excavating equipment which casts a rope-hung bucket a considerable distance, collects the dug...
• Drain FieldShallow, covered, excavation made in unsaturated soil into which pretreated wastewater is discharged through...
• Drain SystemSystem used to convey wastewater streams from a process unit, product storage tank, or feed storage tank to a...
• Drain Tile Loop1. A continuous length of drain tile or perforated pipe extending around all or part of the internal or...
• Drain Trap1. A dip in the drain pipe of sinks, toilets, floor drains, etc., which is designed to stay filled with...
• Drainage1. A technique to improve the productivity of some agricultural land by removing excess water from the soil...
• Drainage Area1. The area that drains to a particular point on a river or stream.
• Drainage Basin1. A part of a land area enclosed by a topographic divide from which direct surface runoff from precipitation...
• drainage densityIn hydrologic terms, the relative density of natural drainage channels in a given area. It is usually...
• drainage intensityThe drainage rate that occurs when the water table is at the soil surface; it increases with drain depth and...
• Drainage structureAny device or land form constructed to intercept and/or aid surface water drainage.
• Drainage WaterIncidental surface waters from diverse sources such as rainfall, snow melt or permafrost melt.
• Drainage Water ManagementA practice in which the outlet from a conventional drainage system is intercepted by a water control...
• Drainage WellA well drilled to carry excess water off agricultural fields. Because they act as a funnel from the surface...
• DrainfieldShallow, covered, excavation made in unsaturated soil. Pretreated wastewater is discharged through piping...
• drainfield (soil treatment area)Physical location where final treatment and dispersal of effluent occurs; includes drainfields, drip fields...
• Draize Rabbit Eye TestAn acute toxicity test originally designed in 1944 by Food and Drug Administration (FDA) toxicologist John H...
• Draw and Iron ProcessMethod for manufacturing a container.
• DrawbarA tractor component typically located at the rear and near the ground that permits attachment of implements...
• Drawbar WorkAny operation performed by a tractor that requires force to be exerted by wheels/tracks to propel an...
• Drawdown1. A lowering of the water table of an unconfined aquifer or the potentiometric surface of a confined aquifer...
• Drawing1. Process of pulling a metal through a die or succession of dies to reduce the metal's diameter or alter its...
• Drawing UnitUnit operation which converts polymer into a different shape by melting or mixing the polymer and then...
• Drawing with Emulsions or Soaps SubcategoryCore of the drawing with emulsions or soaps subcategory shall include drawing using emulsions or soaps...
• Drawing with Neat Oils SubcategoryCore of the drawing with neat oils subcategory shall include drawing using neat oils, stationary casting...
• DrayageThe transport of goods over a short distance.
• Drayage TerminalA terminal with the capacity to handle truck pickup and dropoff.
• Dredge1. An apparatus used to bring up objects or mud from a river or seabed by scooping or dragging.
• dredge and fill1. An engineering process by which channels are dredged through wetlands or uplands to allow small boat...
• Dredged Material1. Material that is excavated or dredged from waters of the United States.
• Dredged Material DischargeExcept as provided below in paragraph (2), the term discharge of dredged material means any addition of...
• Dredged Material PermitPermit issued by the Corps of Engineers under section 103 of the Act (see 33 CFR 209.120) and any Federal...
• Dredging1. A method for deepening streams, swamps or coastal waters by scraping and removing solids from the bottom...
• Dressed weightThe portion of the harvest brought into kitchens for use, including bones for particular species.
• DresserAny entity that modifies a land-based engine for use in a marine vessel, in compliance with the provisions of...
• D-RiboseA pentose active in biological systems usually in its D-form.
• Dried Fruit ProcessingProcessing of various fruits into the following products styles: Air, vacuum, and freeze dried, pitted and...
• DriftDifference between a zero or calibration signal and the respective value reported by a measurement instrument...
• Drift CurrentSlow broad movement of the oceanic water
• Drift IceIce that floats freely on the sea surface.
• Drifting Plant Matter DebrisFloating or suspended dead or decaying parts of, or entire plants
• Drill BitThe part which cuts through and crushes the rock
• Drill CuttingsParticles generated by drilling into subsurface geologic formations and carried out from the wellbore with...
• Drill Pipe1. Heavy, thich walled, hollow steel pipe used in rotary drilling to turn the drill bit and to provide a...
• drill rodLengths of hollow pipe usually made of steel, used by a drill rig to drill a borehole.
• Drill Steam TestTo determine the potential of a producing formation, the operator may order a drill stem test (DST). The DST...
• Drill StringIn horizontal directional drilling, refers to all of the equipment being pushed or pulled into a borehole by...
• DrilledPlanted with a grain drill. Grain drills differ from row crop planters in that they do not meter individual...
• drillheadThe leading end of the drill string; includes the drill bit and a cavity housing the electronic locating...
• Drilling AheadThe actual drilling of the well.
• Drilling and Production FacilityAll drilling and servicing equipment, wells, flow lines, separators, equipment, gathering lines, and...
• Drilling Fluid1. Fluid used to lubricate the bit and convey drill cuttings to the surface with rotary drilling equipment...
• Drilling Mud1. When tapping natural resources, soil and bits of rock mix with water used to lubricate drills to form...
• Drilling Mud DegassingPractice of safely removing pockets of free gas entrained in the drilling mud once it is outside of the...
• Drilling Operations WastewaterWastewater produced by drilling for oil and gas.
• Drilling PadA location which houses the wellheads for a number of horizontally drilled wells. The benefit of a drilling...
• Drilling RigDevice and associated equipment which drills the wellbore
• Drinking WaterAll fluids consumed by individuals to satisfy body needs for internal water.
• Drinking Water Distribution System by TypeA system which delivers potable water to many end users and has a source of water, a treatment plant to make...
• Drinking Water Equivalent Level1. Estimated exposure (in mg/L) which is interpreted to be protective for non carcinogenic endpoints of...
• Drinking Water Health Advisory1. EPA document that provides guidance and information on contaminants that can affect human health and that...
• Drinking Water Health-based ViolationViolations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs) under the...
• Drinking Water Health-based ViolationsViolations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs) under the...
• Drinking Water IndustryScope Note: See also Web Taxonomy-Environmental Media Topics >> Water >> Drinking Water
• Drinking Water InfrastructureIncludes collection and distribution systems, treatment plants and other systems that collect, treat and...
• Drinking Water Monitoring SystemMonitors drinking water for contaminants to ensure that the national drinking water standards are being met.
• Drinking Water Non-Compliance1. The environmental burden indicator for drinking water non-compliance highlights populations served by...
• Drinking Water Population ServedTotal daily population served.
• Drinking Water Purification FacilityA plant which treats water using physical, biological, and chemical methods to make it potable (drinkable...
• drinking water qualityRefers to whether contaminants are present in water that people drink - including water from the tap, private...
• Drinking water resource1. Any body of water, ground or surface, that could currently, or in the future, serve as a source of...
• Drinking Water Service AreasCommunity water system (CWS) service areas describe the geographic area that a water system serves. This map...
• Drinking Water Source1. The Primary Source contributing water to the water system: - GW - Ground Water - SW - Surface Water - GU -...
• drinking water standardsRegulations that EPA sets to control the level of contaminants in the nation’s drinking water. Enforceable...
• Drinking Water State Revolving FundThe Fund provides capitalization grants to states to develop drinking water revolving loan funds to help...
• Drinking Water State Revolving Fund ProgramEach State’s drinking water state revolving fund program authorized under section 1452 of the Act, as...
• Drinking Water SupplyDefined by section 101(7) of CERCLA, means any raw or finished water source that is or may be used by a...
• Drinking Water System Information‘More Details’ Link to SDWIS Reporting Services results...
• Drinking Water System TypeEPA has defined three types of public water systems: Community Water System (CWS): A public water system that...
• Drinking Water Treatment1. Encompasses a variety of treatment processes ( filtration, flocculation and sedimentation, and...
• Drinking Water Uranium RemovalA process to remove uranium from drinking water. Some examples are activated alumina, anion exchange...
• Drinking Water UseIf a waterbody is assessed for Drinking Water use this means that the raw water was assessed pre-treatment...
• Drinking Water Vulnerability AssessmentVulnerability assessments on the risks and security of public drinking water systems.
• Drinking Water Vulnerability AssessmentsVulnerability Assessments on the risks and security of public drinking water systems.
• Drip FieldDrip tubing is placed along the boundaries and makes a ladder of tubing in the soil dispersal field.
• Drip IrrigationA common irrigation method where pipes or tubes filled with water slowly drip onto crops. Drip irrigation is...
• Drip Irrigation InfrastructureInfrastructure to support drops of water delivery at or near the root of plants. In this type of irrigation...
• Drip PadEngineered structure consisting of a curbed, free-draining base, constructed of non-earthen materials and...
• Drip PadsEngineering structures consisting of a curbed, free-draining base, constructed of non-earthen materials, and...
• DriplineArea within 3 feet surrounding the perimeter of a building.
• drive capA steel cap that is attached to the top of the sequence of DP rods. Percussion hammers pound on the drive...
• Drive CasingHeavy duty steel casing driven along with the sampling tool in cased DP systems. Keeps the hole open between...
• Drive Point ProfilerAn exposed groundwater DP system used to collect multiple depth-discrete groundwater samples. Ports in the...
• drive shoeThe sharp, beveled end of a DP soil sampling tool. The shoe is beveled out, so that the soil core is cut...
• Drive System1. The manner in which mechanical power is directly transmitted from the drive shaft to the wheels. The...
• Drive Train ConfigurationUnique combination of engine code, transmission configuration, and axle ratio. [40 CFR 86.082-2 (CFR 2018)]
• DriverFactor(s) that inform the case for conducting specific research. Drivers can be either external and/or...
• Driver ModelAutomated controller that simulates a person driving a vehicle.
• Driving Force, Pressure, State, Impact, ResponseThe conceptual framework for describing the interactions between society and the environment adopted by the...
• Driving ScheduleSeries of vehicle speeds that a vehicle must follow during a test. Driving schedules are specified in the...
• Driving VariableThe predominant factor influencing the outcome of a process.
• DrizzleFairly uniform precipitation composed exclusively of fine water drops very close together.
• Drop capa large initial letter at the start of the text that drops into the line or lines of text below.
• Drop shadowA drop-shadow is the shading effect used to give the appearance of raised type or graphics on the designed...
• Drop-in FuelA substitute for conventional fuel that is completely interchangeable and compatible with conventional fuel...
• Droplet NucleiResidue of dried droplets that may remain suspended in the air for long periods, may be blown over great...
• Droplet SpreadDirect transmission of an infectious agent from a reservoir to a susceptible host by spray with relatively...
• Droplet TransmissionTransfer of diseases by infected droplets contacting surfaces of the eye, nose, or mouth. Droplets containing...
• Drop-off1. A method of collecting recyclable materials where individuals transport the materials to a designated...
• Drop-Off Center1. Refers to a method of collection whereby recyclable or compostable materials are taken by individuals to a...
• DrossSlags and skimmings from aluminum melting and refining operations consisting of fluxing agent(s), impurities...
• Dross FurnaceAny smelting furnace to which drosses are charged and which chemically and physically separates lead from...
• Dross Reverberatory FurnaceAny furnace used for the removal or refining of impurities from lead bullion.
• DrossingRemoving solid oxides from molten metals. These metals such as lead and aluminum have lower melting points.
• Drossing and Refining KettleOpen-top vessel that is constructed of cast iron or steel and is indirectly heated from below and contains...
• Dross-Only FurnaceFurnace, typically of rotary barrel design, dedicated to the reclamation of aluminum from dross formed during...
• Drought1. A period without rain that can damage crops such as wheat and corn.
• Drought Tolerant PlantPlants able to survive and thrive in excessively dry conditions and environments.
• Drug1. A substance recognized by an official pharmacopoeia or formulary. A substance intended for use in the...
• Drug AbuseUse of any drug or substance listed by the Department of Justice in 21 CFR 1308.11, under authority of the...
• Drug EffluxTransport of drugs out of a cell. A mechanism of drug resistance.
• Drug InteractionAlteration of the disposition and/or effect of a drug, owing to the presence of another factor such as a...
• Drug MetabolismA series of chemical modifications of a drug compound by enzymatic activity that make the substrate (drug)...
• Drug Metabolism InductionDrug Metabolism Induction involves the initiation of enzymatic biotransforming chemical modifications exerted...
• Drug Metabolism InhibitionDrug Metabolism Inhibition involves interference with, or restraint of, enzymatic biotransforming chemical...
• Drug PathwayAn elaboration of a sequence of physiological events that are elicited by the administration of a drug.
• Drug Regulatory StatusDrugs organized by their situation with respect to the law
• Drug Resistance Process1. Mechanisms, functions, activities, or processes exhibited by tumors or pathogens to withstand previously...
• Drum1. Cylindrical metal container with walls of 29 gauge or thicker and a capacity greater than 45.4 liters (12...
• Drum Reclamation UnitUnit that burns residues out of drums (e.g., 55 gallon drums) so that the drums can be reused.
• DrumlinDrumlins are products of the streamline (laminar) flow of glaciers, which molded the subglacial floor through...
• Dry Abrasive BlastingCleaning, polishing, conditioning, removing or preparing a surface by propelling a stream of abrasive...
• Dry Air Pollution Control SystemEmission control system that utilizes filters to remove iron-bearing particles (fines) from blast furnace or...
• Dry Atmospheric ConvectionThermally driven. Generally seen in association with thermal lows. Convection which occurs without cloud...
• Dry Bean ProcessingProduction of canned pinto, kidney, navy, great northern, red, pink or related type, with and without...
• Dry Bottom BoilerBoiler has a furnace bottom temperature below the ash melting point and the bottom ash is removed as a solid.
• Dry Bulk HopperCompletely enclosed storage vessel used to transport dry bulk cargos, either by truck, rail, or barge...
• Dry CastUsing a concrete mix that is dry.
• Dry CellA cell (battery) with a captive electrolyte. A primary battery that cannot be recharged.
• Dry Cleaning DryerMachine used to remove perchloroethylene from articles by tumbling them in a heated air stream (see...
• Dry Cleaning FacilityEstablishment with one or more dry cleaning systems.
• Dry Cleaning MachineDry-to-dry machine or each machine of a transfer machine system.
• Dry Cleaning Machine DrumPerforated container inside the dry cleaning machine that holds the articles during dry cleaning.
• Dry Cleaning SystemDry-to-dry machine and its ancillary equipment or a transfer machine system and its ancillary equipment.
• Dry Cow1. A cow that is not lactating or secreting milk after it has completed a lactation period following calving.
• Dry deposition1. Pollutants in the air that fall onto the land or water as dry particles, without the aid of precipitation.
• Dry Disposable Cleaning ClothCommercially available dry, electrostatically charged, white disposable cloth designed to be used for...
• Dry Drill Cuttings1. Residue remaining in the retort vessel after completing the retort procedure specified in EPA Method 1674...
• Dry Electrostatic Precipitator SystemElectrostatic precipitator with a dry bottom (i.e., no black liquor, water, or other fluid is used in the ESP...
• Dry FinishingTreatment after the concrete has been cured for a variety of special effects on the finish.
• Dry Floodproofing1. Floodproofing technique in which modifications are made to allow floodwaters inside a building while...
• Dry Flue Gas Desulfurization Technology1. Add-on air pollution control system located downstream of the steam generating unit that injects a dry...
• Dry Fog CoatingCoating formulated and recommended only for spray application such that overspray droplets dry before...
• Dry FormingProcess of making a mat of resinated fiber to be compressed into a reconstituted wood product such as...
• Dry Grinding with MachinesGrinding or polishing without the use of lubricating oils or fluids in fixed or stationary machines. Hand...
• Dry Hearth FurnaceFurnace created to assist in the separation of scrap metals heat and their metling points to allow metals to...
• Dry HoleDrilled well which does not produce enough oil or gas to make it economically viable.
• Dry Injection Fabric FilterAdd-on air pollution control device that includes continuous injection of hydrated lime or other sorbent into...
• Dry Lime Scrubber/Fabric Filter1. Add-on air pollution control device that includes continuous injection of humidified hydrated lime or...
• Dry Limestone AdsorberAir pollution control device that includes a limestone storage bin, a reaction chamber that is essentially a...
• Dry Lot1. An open lot that may be covered with concrete, but that has no vegetative cover. Generally used as...
• Dry Lubricative MaterialCoating consisting of lauric acid, cetyl alcohol, waxes, or other non-cross linked or resin-bound materials...
• Dry Mechanical PolishingProcess used for removing defects from and smoothing the surface of finished metals and formed products after...
• Dry Media BlastingAbrasive blasting using dry media. Dry media blasting relies on impact and abrasion to remove paint from a...
• Dry MillingProcess in which shelled corn is milled by dry process, without an initial steeping step.
• Dry Natural GasNatural gas with so little natural gas liquids that it is nearly all methane with some ethane.
• Dry OperationA process that results in no wastestream generation.
• Dry Particulate Control SystemAir pollution control device that uses filtration, impaction, or electrical forces to remove particulate...
• Dry PesticideAny pesticide that is in solid form and that has not been combined with liquids; this includes formulations...
• Dry Polishing with MachinesGrinding or polishing without the use of lubricating oils or fluids in fixed or stationary machines. Hand...
• Dry ProcessNot producing a wastewater.
• Dry Process Cement ManufactureRaw materials are limestone, shells, and chalk or marl with shale, clay, slate, blast furnace slag, silica...
• Dry RavelSloughing of sediment due to loss of cohesion in surface materials.
• Dry Raw WoolDry raw wool as it is received by the wool scouring mill.
• Dry Rotary DryerRotary dryer that dries wood particles or fibers with a maximum inlet moisture content of less than or equal...
• Dry Scrubber1. Add-on air pollution control system that injects dry alkaline sorbent (dry injection) or sprays an...
• Dry, seasoned woodWood that has been split and dried for at least six months and has <20% moisture by weight.
• DRY SILVER FILMIn microform records, a nongelatin silver film developed by applying heat rather than a liquid. Also called...
• Dry Solid FormState where all or part of the substance would have the potential to become fine, loose, solid particles.
• Dry Sorbent InjectionAdd-on air pollution control system in which sorbent (e.g., conventional activated carbon, brominated...
• Dry Sorbent Injection SystemAdd-on air pollution control system that injects dry alkaline sorbent (dry injection) or sprays an alkaline...
• Dry Weight BasisCalculated on the basis of having been dried at 105 degrees Celsius until reaching a constant mass (i.e...
• DryerChamber that is heated and that is used to remove moisture from lead-bearing materials before they are...
• Dryer Heated ZoneZones of a softwood veneer dryer or fiberboard mat dryer that are equipped with heating and hot air...
• Dryer Transition EquipmentJunction between a dryer and the charge hopper or conveyor, or the junction between the dryer and the...
• DRYINGA film-processing step of removing water from photographic material.
• Drying and Curing OvenProcess section that evaporates excess moisture from a fiberglass mat and cures the resin that binds the...
• Drying AreaArea where VOC from applied cement or green tire sprays is allowed to evaporate.
• Drying Oven1. Chamber within which heat is used to dry a surface coating; drying may be the only process or one of...
• Dryland FarmingA technique that uses soil moisture conservation and seed selection to optimize production under dry...
• DrylotAn enclosed, unpaved area where the animals can move about freely and where they can feed along a feed apron...
• DrystackSolid or dry manure that is scraped from a barn, feedlane, drylot or other similar surface and stored in a...
• Dry-to-Dry MachineOne-machine dry cleaning operation in which washing and drying are performed in the same machine.
• Dry-Weather DepositionThe settling of particulates from the atmosphere onto water or land surfaces in the absence of precipitation.
• Dry-Weather DischargeAn overflow or discharge from a combined or sanitary sewerage system or storm drainage system that is not the...
• Dry-Weather DurationThe interval of time between precipitation (rainfall and snowfall) events. As it pertains to combined...
• Dry-Weather Flow1. Usually referred to as the flow in a combined sewer system without stormwater.
• Dry-Weather Overflow1. An overflow or discharge from a combined or sanitary sewerage system or storm drainage system that is not...
• Dry-weight intake ratesIntake rates that are based on the weight of the food consumed after the moisture content has been removed.
• Drywell1. Drywell means a bored, drilled, or driven shaft or a dug hole or subsurface fluid distribution system...
• DS2Standard decontaminant for chemical warfare agents; contains 70% diethylene triamine, 28% ethylene glycol...
• D-SerineA non-essential amino acid and dextro isomer of serine with antipsychotic activity. D-serine is a selective...
• DSSTox File NameEach DSSTox SDF file has a unique file name of the general form: NAMEID_v1a_#records_ddMmmyy.sdf. The name...
• Dual Alkali ScrubberFlue gas desulfurization system that uses both sodium- and potassium-based scrubbing agents to remove sulfur...
• Dual Fuel Engine1. Any vehicle/engine engineered and designed to be operated on two or more different fuels, but not on a...
• Dual Fuel Vehicle1. A motor vehicle that is capable of operating on an alternative fuel and on gasoline or diesel fuel. These...
• Dual Fueled AutomobileAutomobile:(1) Which is designed to operate on an alternative fuel and on gasoline or diesel fuel; and(2)...
• Dual laterolog1. A focused resistivity log with both shallow and deep investigation; usually gamma, SP, and microfocused...
• Dual Mechanical Seal AgitatorPump or agitator equipped with a dual mechanical seal system that includes a barrier fluid system where the...
• Dual Mechanical Seal PumpPump or agitator equipped with a dual mechanical seal system that includes a barrier fluid system where the...
• Dual Method CertificationProcess in which the gravimetric value is independently confirmed by a measured value.
• Dual Sample SetSet of two samples collected at the same time and same location, with one sample analyzed for TTHM and the...
• Dual TreatmentThose processes or facilities designed for operating on both dry- and wet-weather flows.
• Dual Use Research of ConcernLife sciences research that, based on current understanding, can be reasonably anticipated to provide...
• Dual Water Distribution SystemActually two separate piped water systems in a service area: one supplies potable water for drinking; the...
• Dual-Fuel Reciprocating Engine UnitInternal combustion engine that combusts any combination of natural gas and diesel fuel and that thereby...
• Dual-MeteringBuying electricity from the utility and selling it to the utility with two different energy rates, typically...
• dual-phase extraction1. The active withdrawal of both liquid and gas phases from a well usually involving the use of a vacuum pump.
• Dual-Point Vapor Balance SystemType of vapor balance system in which the storage tank is equipped with an entry port for a gasoline fill...
• Duct BurnerDevice that combusts fuel and that is placed in the exhaust duct from another source, such as a stationary...
• Duct Intake DeviceDevice which may control the intake of hazardous air pollutants into the system.
• DuctileCapable of being drawn out or hammered thin
• Ductile IronA cast iron that has been treated while molten with a master alloy containing an element such as magnesium or...
• Ductwork1. Conveyance system such as those commonly used for heating and ventilation systems. It is often made of...
• Due DiligenceDue Diligence is a term of art in the business community that refers to the combination of procedures and...
• Duff1. The accumulation of needles, leaves, and decaying matter on the forect floor.
• Dufour's GlandAbdominal gland of some insect species that secrete chemicals for various purposes, such as communication...
• Duly Authorized RepresentativeDefined in 40 CFR 403.12(l)(3).
• Dummya sketch of a page showing the position of text and illustrations and giving general instructions.
• Dummy VariablesA dichotomous variable, typically used in regression analysis, which indicates the existence (and lack of...
• dump1. A land site where wastes are discarded in a disorderly or haphazard fashion without regard to protecting...
• Dump SiteAny site where waste materials are unloaded.
• DUMPING1. In electronic records, the process of copying recorded information from internal memory to an external...
• dune1. A hill or ridge of wind-deposited sand.
• dune and swale (ridge and swale)Dunes or ridges that run parallel to a lake and on the ancestral lake bed; the dunes are dry and sandy, the...
• Dung BeetleScarab beetles that breed in and feed on animal dung, often rolling it from place to place.
• Dung FlyA fly that breeds in dung and feeds on the insects that frequent dung.
• Duodenum1. A jointed tube 25-30 cm long that connects the stomach to the jejunum.
• DuotoneA black and white photographic image that has been given a color tint, by duplication the image onto a second...
• DUPLEX-NUMERIC FILING SYSTEMA system for arranging records by adding assigned numbers associated with subordinate headings to those...
• Duplicate1. A sample taken from and representative of the same population as another sample. Both samples are carried...
• Duplicate measurementsTwo measurements made concurrently and in the same location, or side-by-side. Used to evaluate the precision...
• DUPLICATE ORIGINAL FILMIn microform records, either of two camera films exposed at the same time.
• Duplicate (radiochemistry)A second aliquot of a field sample that is processed in exactly the same manner as the samples in the...
• Durability Data VehicleVehicle used to generate durability data as required in this subpart.
• Durability FleetFleet of automobiles operated for mileage accumulation used to assess deterioration effects associated with...
• Durability Useful Life1. Highest useful life mileage out of the set of all useful life mileages that apply to a given vehicle. The...
• Duration (in the context of nutrient criteria)The time period over which exposure is averaged (i.e., the averaging period) to limit the time of exposure to...
• duration of infectiousnessRefers to the period of time during which a host excretes infectious pathogen. In this context it does not...

1,538 of 30,736 terms in Environment terminology (MLC-0121). Request the full dataset.