Environment terminology · MLC-0121

Environment terms: E (1,815)

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• Environmental objective1. Overall environmental goal, arising from the environmental policy, that an organization sets itself to...
• Environmental or Health Effects InformationInformation of any effect of a chemical substance or mixture containing a chemical substance on health or the...
• Environmental performance1. The measurable results of the environmental management system, related to an organization's control of its...
• Environmental performance evaluationProcess to measure, analyze, assess, report, and communicate an organization's environmental performance...
• Environmental performance indicatorA specific datum selected, such as volume of a chemical used, which will provide measurable information...
• Environmental Performance IndicatorsIndicators that describe products’ or processes’ impacts on living and non-living natural systems, including...
• Environmental Performance PartnershipAn EnPPA is an agreement between the US EPA Region 5 office and a state which identifies the Region's and the...
• Environmental Planning for Energy ProductionActivities to support environmental planning for transformation of energy resources into useable, deliverable...
• Environmental Planning for Energy Resource ManagementActivities to support environmental planning for energy producing resources, including facilities, dams...
• Environmental Policy1. Statement by the organization of its intentions and principles in relation to its overall environmental...
• Environmental Preserve1. Parks, national and historical monuments, national seashores, wilderness areas, research sites, and...
• Environmental ProcessManufactured or natural processes that produce discharges or that impact human health and the environment.
• Environmental Processes1. Any manufactured or natural processes that produce discharges to, or that impact, the ambient environment.
• Environmental Product Declaration1. Quantified environmental data for a product with pre-set categories of parameters (raw material, energy...
• Environmental Professional1. The qualifications of an environmental professional needed to conduct Environmental Site Assessments are...
• Environmental Programs1. Work or activities involving the environment, including but not limited to: characterization of...
• Environmental ProtectionEnvironmental protection includes prevention (avoidance) strategies to protect the environment from future...
• Environmental Protection AgencySee http://www.epa.gov/. Environmental Protection Agency (EPA) was established as an independent agency on...
• Environmental Protection Special Research ConsultantSpecial consultant appointed to assist and advise in the operations of the research activities of the EPA.
• Environmental Quality Incentives ProgramA voluntary conservation program for farmers and ranchers, offering financial, technical, and educational...
• Environmental RatioComparisons used in regulations, which are expressed as ratios.
• Environmental ReactivityThe ability of a chemical species to enter into reactions with other chemicals in the environment. Often...
• Environmental ReceptorNatural areas such as national or state parks, forests, or monuments; officially designated wildlife...
• Environmental Regulatory ModelModels can be categorized according to their fit into a continuum of processes that translate human...
• Environmental Release by TypeAny spilling, leaking, pumping, pouring, emitting, emptying, discharging, injecting, escaping, leaching...
• Environmental RemediationEnvironmental Remediation supports the immediate and long-term activities associated with the correcting and...
• Environmental Response Team1. EPA's group of highly trained scientists and engineers based in Edison, NJ and Cincinnati, OH who back up...
• Environmental Revenue StreamFunding streams created to monetize environmental benefits that can be quantified. For example, carbon offset...
• Environmental Revenue StreamsFunding streams created to monetize environmental benefits that can be quantified. For example, carbon offset...
• Environmental review process1. A series of steps taken to determine whether a project will be impacted by potential hazards. In the case...
• Environmental Risk1. Environmental risk is the chance that human health or the environment will suffer harm as the result of...
• Environmental Risk AssessmentThe examination of technology-related risks that threaten ecosystems, animals and people.
• Environmental Sample1. A sample of any material that is collected from an environmental source.
• Environmental Security1. The security that is inherent in the physical surroundings in which a facility or functional unit is...
• Environmental SensitivityThe relative susceptibility to adverse impacts of a water resource or other receiving environment from...
• Environmental Site Assessment1. An ESA is the process that determines whether contamination is present at a site.
• Environmental Standard1. Standard of performance proposed or promulgated under this part.
• Environmental Standard SettingActivities under EPA statutes to set standards, such as National Ambient Air Quality Standards, drinking...
• Environmental StewardshipActivities to support the development of programs, infrastructure, technical capabilities, outreach...
• environmental stressorsFactors which cause, or have the potential to cause, impairments of beneficial uses of Lake Erie. These...
• Environmental Sustainability1. Long-term maintenance of ecosystem components and functions for future generations.
• Environmental target1. Detailed performance requirement, quantified wherever practicable, applicable to the organization or parts...
• Environmental Technology1. An all-inclusive term used to describe pollution control devices and systems, waste treatment processes...
• Environmental Test CellTest cell capable of wind-speed, solar thermal load, ambient temperature, and humidity control or simulation...
• Environmental Tobacco Smoke1. Mixture of smoke from the burning end of a cigarette, pipe, or cigar and smoke exhaled by the smoker.
• Environmental Transformation ProductAny chemical substance resulting from the action of environmental processes on a parent compound that changes...
• Environmental TransportThe movement of pollutants in the environment
• Environmental WaterThe liquid that descends from the clouds as rain, forms streams, lakes, and seas; and is a major constituent...
• Environmental Work ConditionsThe interior/exterior climate conditions that can impact the staff including humidity, temperature, air...
• Environmentally Acceptable LubricantLubricants that are biodegradable, minimally-toxic, and not bioaccumulative as defined in this subpart. The...
• Environmentally Benign MaterialMaterials that may be used with minimal harm to the environment from the point of harvesting to manufacturing...
• Environmentally Conscious ConstructionBuilding structures in a way that reduces negative impacts on the environment.
• Environmentally Friendly ProductClaims of environmental friendliness should calculate the environmental costs through the product's entire...
• Environmentally PreferableA designation given to products or services that have a lesser or reduced effect on human health and the...
• Environmentally Preferable AlternativeAlternative or alternatives that will best promote the national environmental policy as expressed in section...
• Environmentally Preferable ProductProducts and services that have a lesser or reduced effect on human health and the environment when compared...
• Environmentally Preferable Products1. Products or services that have a lesser or reduced effect on human health and the environment when...
• Environmentally Preferable Purchasing1. Ensures that environmental considerations are included in purchasing decisions, along with traditional...
• ENVIRONMENTALLY RELATED MEASUREMENTSAny data collection activity or investigation involving the assessment of chemical, physical, or biological...
• Environmentally Transformed ChemicalA chemical substance is “environmentally transformed” when its chemical structure changes as a result of the...
• Environmentally-Related DataAny laboratory or field data gathering activity or investigation involving the determination of chemical...
• Enzootic Bovine LeukosisA lymphoid neoplastic disease in cattle caused by the bovine leukemia virus. Enzootic bovine leukosis may...
• Enzymatic HydrolysisEnzyme catalyzed reaction in which a water molecule is added to a compound. This addition often involves the...
• Enzymatic Test KitQualitative technology that can detect the presence of chemical agents, carbamate pesticides, and/or...
• enzyme1. Any of numerous proteins or conjugated proteins produced by living organisms and functioning as...
• Enzyme Activity AlterationEnzyme Activity Alteration involves a change in the quality of the existing state of function of a biological...
• Enzyme InductionEnzyme Induction involves initiation of function of a biological molecule that possesses catalytic activity.
• Enzyme InhibitionEnzyme Inhibition involves interference with, or restraint of, the function of a biological molecule that...
• Enzyme InhibitorCompounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme...
• Enzyme InteractionEnzyme Interaction involves temporary non-covalent binding, typically through intermolecular physical forces...
• Enzyme InterconversionThe reversible process where one enzyme form changes into another, typically with an alteration in enzyme...
• Enzyme ReactivationEnzyme Reactivation involves initiation of function, following prior inhibition, of a biological molecule...
• Enzyme UncouplingThrough physical or functional dissociation, Enzyme Uncoupling involves alteration (typically disruption) of...
• Enzyme-Linked Immunosorbent AssayA technique using antibodies for detecting specific proteins. Used to test for the presence of a particular...
• Enzymes1. (EN-zimes) Organic substances (produced by living organisms) which cause or speed up chemical reactions...
• Enzymes by Function1. Any of numerous proteins or conjugated proteins produced by living organisms and functioning as...
• eolianDeposited by wind.
• EPA Acknowledgement of ConsentCable sent to EPA from the U.S. Embassy in a receiving country that acknowledges the written consent of the...
• EPA Approved State Plan1. State plan that EPA has approved based on the requirements in 40 CFR part 60, subpart B to implement and...
• EPA BinderThe three-ring binder submitted to the Office of the Federal Register as part of the codification of a...
• EPA Certified ConfigurationAn EPA-certified configuration is an "unaltered vehicle" manufactured in conformity with U.S. federal...
• EPA Civilian OperationsDirect support to citizens for field operations related to removal actions, emergency response to...
• EPA Claims OfficerAgency official delegated the responsibility by the Administrator to carry out the provisions of the Act.
• EPA Emergency PreparednessActivities to prepare for responding to national or environmental emergencies, including planning; the...
• EPA Emergency PreventionActivities to prevent national or environmental emergencies, such as protecting environmental infrastructure...
• EPA Enforcement Officer1. Any officer or employee of the Environmental Protection Agency so designated in writing by the...
• EPA Environmental Public Works ProjectsActivities and programs to support the construction of environmental public works projects, such as...
• EPA FellowYou are a fellow if you receive an EPA fellowship award.
• EPA Final ActionEPA Final approval for TMDLs, CWA Section 303(d) impaired waters lists and protection plans.
• EPA Fuel Economy Estimates/MPG EstimatesEPA estimates are based upon vehicle-specific data from tests designed to replicate real-world conditions...
• EPA General CounselEPA officer or employee occupying the position so titled.
• EPA Hazardous Waste NumberNumber assigned by EPA to each hazardous waste listed in part 261, subpart D, of this chapter and to each...
• EPA ID1. An identifier unique to the Superfund program for a site or facility. The first two characters are equal...
• EPA Identification Number1. A unique number assigned by EPA to each hazardous waste generator, transporter, or treatment, storage, and...
• EPA IR CategoryThe overall EPA Integrated Report Category for the Assessment Unit ID, calculated by ATTAINS.
• EPA IRA Disadvantaged CommunitiesThe EPA Inflation Reduction Act (IRA) (https://www.epa.gov/inflation-reduction-act) Disadvantaged Communities...
• EPA Legal OfficeEPA General Counsel and any EPA office over which the General Counsel exercises supervisory authority...
• EPA Major Basin CodeThe code representing the archaic EPA major basin developed as part of a drainage area delineation scheme.
• EPA Map of Radon ZonesA U.S. EPA publication depicting areas of differing radon potential in both map form and in state specific...
• EPA Minor Basin CodeThe code representing the archaic EPA minor basin developed as part of a drainage area delineation scheme.
• EPA Moderated Transaction SystemClosed, EPA moderated system that provides a mechanism for screening and tracking Renewable Identification...
• EPA OfficeOrganizational element of EPA, at any level or location. (The terms EPA office and EPA legal office are used...
• EPA Protocol1. Protocols developed and/or used by EPA to meet specific environmental and regulatory conditions. Other...
• EPA Protocol Gas1. Calibration gas mixture prepared and analyzed according to section 2 of the “EPA Traceability Protocol for...
• EPA Protocol Gas Production SiteSite that produces or blends calibration gas mixtures prepared and analyzed according to section 2 of the...
• EPA Protocol Gas Verification ProgramCalibration gas audit program described in § 75.21(g) of this chapter and implemented by EPA in cooperation...
• EPA Radon Zone 1Counties that have a predicted average indoor radon screening level greater than 4 pCi/L (pico curies per...
• EPA Radon Zone 2Counties that have a predicted average indoor radon screening level between 2 and 4 pCi/L.
• EPA Radon Zone 3Counties that have a predicted average indoor radon screening level less than 2 pCi/L.
• EPA Region1. One of 10 EPA geographic divisions, each responsible for executing the Agency's programs within a specific...
• EPA Region 10United States Environmental Protection Agency, Region 10.
• EPA Regional OfficePlays a key role in any process involving S/L/T air program activities and requirements. Acts as an...
• EPA Regions1. The EPA Regions layer includes EPA Administrative Region boundaries derived from State boundaries.
• EPA Registration NumberA two-part number assigned by EPA to identify each pesticide product registration (e.g., 1253-79). The first...
• EPA Regulated FacilitiesFacilities or sites subject to environmental regulation.
• EPA Response to National EmergenciesActivities related to response to terrorist incidents, including deployment and maintenance of on-site...
• EPA Risk AssessorThe risk assessor responsible for reviewing the risk assessment on behalf of EPA.
• EPA Sampling and Analysis PlanThis Sampling and Analysis Plan (SAP) guidance and template is intended to assist organizations in...
• EPA Traceability ProtocolThe protocol allows producers of these standards, users of gaseous standards, and other analytical...
• EPA Trial StaffEmployee of EPA, whether temporary or permanent, who has been designated by the Administrator to investigate...
• EPA TSCA Title VI Laboratory Accreditation Body1. AB that has a recognition agreement with EPA under the EPA TSCA Title VI Third-Party Certification...
• EPA TSCA Title VI Product Accreditation BodyAB that has a recognition agreement with EPA under the EPA TSCA Title VI Third-Party Certification Program...
• EPA TSCA Title VI Third-Party CertifierConformity assessment body that provides both product certification services and laboratory testing services...
• EPA-Initiated Risk EvaluationAny risk evaluation conducted pursuant to section 6(b)(4)(C)(i) of the Act.
• ephemeral dainageA channel that carries water only during and immediately following rainstorms. Sometimes referred to as a dry...
• Ephemeral drainageA natural channel that carries water only during and immediately following rainstorms and whose channel...
• ephemeral stream1. A stream or reach of a stream that flows briefly only in direct response to precipitation in the immediate...
• Ephemeral Waters1. Water bodies (e.g., streams or wetlands) that contain water for brief periods, usually in direct response...
• EphemeropteraAn Order of aquatic INSECTS comprising about 2,500 species worldwide. It is the only insect group with two...
• EpicenterThe epicenter is the point on the earth's surface vertically above the hypocenter (or focus), point in the...
• Epichlorohydrin ElastomerElastomer formed from the polymerization or copolymerization of epichlorohydrin (EPI). The main...
• Epicuticular WaxCoating of wax that protects some plant surface cuticle from the loss of moisture and repels excess moisture.
• Epidemic1. Widespread outbreak of a disease, or a large number of cases of a disease in a single community or...
• Epidemic CurveHistogram that shows the course of a disease outbreak or epidemic by plotting the number of cases by time of...
• Epidemiologic ecologyThe study of the effects of human, physical, biological, and chemical stressors on conditions of ecosystems...
• Epidemiologic StudyStudy of human populations to identify causes of disease. Such studies often compare the health status of a...
• Epidemiologic TriadTraditional model of infectious disease causation. Includes three components: an external agent, a...
• Epidemiological Studies1. Studies looking to describe and interpret the patterns of disease occurrence in human populations and the...
• epidemiologistA medical scientist who studies the various factors involved in the incidence, distribution, and control of...
• Epidemiology1. The study of the distribution and determinants of health-related states or events in specified populations.
• epidemiology triadThe traditional model of infectious disease causation. Includes three components: an external agent, a...
• Epididymis1. A crescent-like structure located in the upper and posterior surfaces of the testis. It consists of the...
• EpifaunaAnimals that live either attached to a hard surface (for example, on rocks or pilings) or move on the surface...
• EpigastricPertaining to the upper-middle region of the abdomen
• Epigenetic ChangeChanges in the regulation of the expression of gene activity without alteration of genetic structure.
• Epigenetic ProcessChanges in the regulation of the expression of gene activity without alteration of genetic structure.
• Epigenetic ProgressChanges in the regulation of the expression of gene activity without alteration of genetic structure.
• Epigenetic SilencingThis process is initiated by the formation of heterochromatin which ultimately leads to transcriptional...
• EpigeneticsThe study of heritable changes in gene function that occur without a change in the DNA sequence.
• EpileptiformOccurring in severe or sudden spasms
• Epilimnion1. (EP-ub-LIM-knee-on) The upper layer of water in a thermally stratified lake or reservoir. This layer...
• Epimeletic BehaviorIn animal behavior, the giving of care or attention, including parental care and also including non-parental...
• EpinastyStronger growth on the upper surface than on the under surface of a plant part, which causes the part, such...
• Epinephrine SecretionActivities involved in release across the cell membrane into the bloodstream from the adrenal medulla of a...
• EpiOcular™ ModelA non-animal test method developed in the search for a replacement for the Draize rabbit eye test. This test...
• EpipedonThe epipedon (Gr. epi, over, upon, and pedon, soil) is a horizon that forms at or near the surface and in...
• Epiphyte1. A plant growing on another plant; more generally, any organism growing attached on a plant.
• Episode (Pollution)An air pollution incident in a given area caused by a concentration of atmospheric pollutants under...
• Episodic AcidicationA short period of time when streams, lakes, and the ground have a much higher pH level then they normally do...
• Episodic GenerationThe situation in which a generator's status changes from one month to the next, as determined by the amount...
• Epistemic UncertaintyIs caused by limitations in the state of knowledge of the science itself being used by the model.
• Epistemology1. The branch of philosophy that is concerned with the acquisition of knowledge.
• EPISuiteA computerized predictive system developed by EPA's Office of Chemical Safety and Pollution Prevention that...
• Epitaxial GrowthThe growth of the deposited crystal is oriented by the lattice structure of the original crystal.
• Epithelial CellCells that line the inner and outer surfaces of the body by forming cellular layers ( epithelium) or masses...
• Epithelial Cell ProliferationEpithelial Cell Proliferation involves multiplication or reproduction through cell division of joined cells...
• Epithelial-to-Mesenchymal TransitionA cellular process where an epithelial cell loses polarity, disassembles adhesive junctions, degrades its...
• EpitheliumCells covering the internal and external surfaces of the body
• Epithermal neutronA neutron source emits fast neutrons that are slowed by moderation to an energy level just above thermal...
• e-PMN SoftwareElectronic-PMN software created by EPA for use in preparing and submitting Premanufacture Notices (PMNs) and...
• EpoxidesChemical compound consisting of a three-membered cyclic ether. Only emissions of epoxides listed in Table 4...
• Epoxy CoatingAny thermoset coating formed by reaction of an epoxy resin (i.e., a resin containing a reactive epoxide with...
• Epoxy Polyamide TopcoatCoating used where harder films are required or in some areas where engraving is accomplished in camouflage...
• Epoxy SealMixture of aggregate in epoxy binders. Epoxy seals are typically used as an anti-skid surface on bridge...
• Epsilon Diversityfor a broader geographic area, including differing landscapes.
• EPT Richness IndexAn index based on the sum of the number of taxa in three insect orders, Ephemeroptera (mayflies), Plecoptera...
• Equal-area projectionOne of a class of map projections that preserves area relationships between the map and the surface of the...
• Equatorial WaveA wave that is trapped by and moves along the Equatorial water mass, which forms a density barrier.
• Equilibrium1. In relation to radiation, the state at which the radioactivity of consecutive elements within a...
• Equine EncephalomyelitisA group of Alphavirus infections which affect horses and man, transmitted via the bites of mosquitoes...
• Equine Infectious AnemiaViral disease of horses caused by the equine infectious anemia virus. It is characterized by intermittent...
• Equine PiroplasmosisA tick-borne disease that affects horses, donkeys, mules andzebras. The disease is transmitted via ticks or...
• Equine Protozoal MyeloencephalitisDisease of the horse central nervous system caused by a protozoa
• Equipment1. Tangible, nonexpendable, personal property including exempt property charged directly to the award having...
• Equipment Attitudinal ControlOperator regulates either the horizontal or vertical position of the equipment, or both.
• Equipment Blank1. A sample of analyte-free media which has been used to rinse common sampling equipment to check...
• Equipment by UseEquipment grouped by its function or use.
• Equipment CalibrationMeasurement of dispersal or output of application equipment and adjustment of such equipment to control the...
• Equipment CleaningUse of an organic solvent to remove coating residue from the surfaces of paint spray guns and other painting...
• Equipment Dry WeightWeight of the equipment as sold without fuel, oil, or engine coolant.
• Equipment in Benzene ServicePiece of equipment either contains or contacts a fluid (Liquid or gas) that is at least 10 percent benzene by...
• Equipment in Diisocyanate ServicePiece of equipment that contains or contacts a diisocyanate.
• Equipment in Fluorinated Greenhouse Gas ServicePiece of equipment either contains or contacts a feedstock, by-product, or product that is a liquid or gas...
• Equipment in Food and Medical ServicePiece of equipment in regulated material service contacts a process stream used to manufacture a Food and...
• Equipment in Gas and Vapor ServicePiece of equipment in regulated material service contains a gas or vapor at operating conditions [40 CFR...
• Equipment in Gas or Vapor ServicePiece of equipment in regulated material service contains a gas or vapor at operating conditions.
• Equipment in Gasoline Service1. That a piece of equipment is used in a system that transfers gasoline or gasoline vapors. [40 CFR 63.11100...
• Equipment in Gas/Vapor Service1. Piece of equipment contains process fluid that is in the gaseous state at operating conditions. [40 CFR...
• Equipment in Hazardous Air Pollutant Auxiliary Blowing Agent ServicePiece of equipment that contains or contacts a HAP ABA.
• Equipment in Hazardous Air Pollutant ServiceProcess component either contains or contacts a liquid that is at least 5-percent HAP by weight or a gas that...
• Equipment In Heavy Liquid Service1. Piece of equipment is not in gas/vapor service or in light liquid service. [40 CFR 60.481 (CFR 2013)] [40...
• Equipment in Hydrogen Service1. Compressor contains a process fluid that meets the conditions specified in § 60.593a(b).
• Equipment in Light Liquid Service1. Piece of equipment contains a liquid that meets the conditions specified in § 60.485(e). [40 CFR 60.481...
• Equipment in Liquid Service1. Piece of equipment in regulated material service is not in gas or vapor service. [40 CFR 63.1001 (CFR...
• Equipment in Metal Hazardous Air Pollutant ServiceProcess vessel or piece of equipment either contains or contacts a feedstock, byproduct, or product that...
• Equipment in Organic Hazardous Air Pollutant Service1. Piece of equipment either contains or contracts a fluid (liquid or gas) that is at least 5 percent by...
• Equipment in Organic Liquids ServiceEquipment leak component contains or contacts organic liquids having 5 percent by weight or greater of the...
• Equipment in Regulated Material Service1. For the purposes of this subpart, equipment which meets the definition of “in VOC service”, “in VHAP...
• Equipment in ServiceEquipment classified in the CFR by its use/exposure.
• Equipment in Target Hazardous Air Pollutant Service EquipmentEquipment in the chemical preparation operation either contains, contacts, or is processing target...
• Equipment in Vacuum Service1. Equipment is operating at an internal pressure which is at least 5 kilopascals (kPa)(0.7 psia) below...
• Equipment in Vinyl Chloride ServicePiece of equipment either contains or contacts a liquid that is at least 10 percent vinyl chloride by weight...
• Equipment in Volatile Hazardous Air Pollutant ServiceA piece of ancillary equipment or compressor either contains or contacts a fluid (liquid or gas) which has a...
• Equipment in Volatile Organic Compound Service1. Piece of equipment contains or contacts a process fluid that is at least 10 percent VOC by weight. (The...
• Equipment in Wet Gas Service1. Piece of equipment contains or contacts the field gas before the extraction step in the process.
• Equipment Installed in SeriesCalciner and dryer installed such that the exhaust gases from one flow through the other and then the...
• Equipment Leak1. Emissions of VHAP from pumps, valves, flanges, or other equipment used to transfer or apply coatings...
• Equipment Leak ComponentEach pump, valve, and sampling connection system used in organic liquids service at an OLD operation. Valve...
• Equipment Leak DetectionProcess of identifying emissions from equipment, components, and other point sources.
• Equipment LifeThe expected lifetime of a control measure (in years).
• Equipment Manufacturer1. Manufacturer of equipment using engines covered by the provisions of this Part who does not also...
• Equipment Piece1. Any vehicle, vessel, or other type of equipment using engines to which this part applies. [40 CFR 1039.801...
• Equipment Rated Capacity1. Rated capacity in tons per hour of a crusher, grinding mill, bucket elevator, bagging operation, or...
• Equipment RepairEquipment and devices used to repair or maintain process equipment or to prepare molds, dies, or other...
• Equipment Returned to Service1. Group 1 or Group 2 storage vessel affected facility that was removed from service has been: (1)...
• Equipment SanitizationThe removal of microorganisms and fat, protein, and mineral residues in milking equipment through use of...
• Equipment Startup1. Setting into operation of a piece of equipment or a control device that is subject to this subpart. [40...
• Equipment-Based StandardEmission standard that applies to the equipment in which an engine is used or to fuel-system components...
• Equipotential mapA plot in which points of equal hydraulic head are connected.
• Equitable ServitudeA real estate interest, similar to a covenant, that arose when courts of equity enforced agreements that did...
• Equivalence DataChemical data or biological test data intended to show that two substances or mixtures are equivalent.
• Equivalency FactorAn indicator of the potential of each chemical to impact the given environmental impact category in...
• Equivalency RatioFactor applied to pollutant reduction credits to adjust for trading different pollutants or different forms...
• Equivalent Emission LimitationAny maximum achievable control technology emission limitation or requirements which are applicable to a major...
• Equivalent Live Weight KilledTotal weight of animals slaughtered at locations other than the slaughterhouse or packinghouse that processes...
• Equivalent Mercury Analytical ProcedurePublished VCS or EPA method that clearly states that the standard, practice, or method is appropriate for...
• Equivalent Mercury Determinative ProcedurePublished VCS or EPA method that clearly states that the standard, practice, or method is appropriate for...
• Equivalent Method1. Any method of sampling and analyzing for air pollution which has been demonstrated to the EPA...
• Equivalent Petroleum-Based Fuel Economy ValueNumber representing the average number of miles traveled by an electric vehicle per gallon of gasoline.
• Equivalent Phosphorus Pentoxide FeedQuantity of phosphorus, expressed as phosphorus pentoxide, fed to the process. [40 CFR 60.201 (CFR 2013)][40...
• Equivalent Phosphorus Pentoxide StoredQuantity of phosphorus, expressed as phosphorus pentoxide, being cured or stored in the affected facility.
• Equivalent Procedure for Determining Fuel Moisture ContentPublished VCS or EPA method to obtain moisture content. If the sample analysis plan calls for determining...
• Equivalent Procedure for Determining Heat ContentPublished VCS or EPA method to obtain gross calorific (or higher heating) value.
• Equivalent projectionOne of a class of map projections that preserves area relationships between the map and the surface of the...
• Equivalent Sample Collection ProcedurePublished voluntary consensus standard or practice (VCS) or EPA method that includes collection of a minimum...
• Equivalent Sample Compositing ProcedurePublished VCS or EPA method to systematically mix and obtain a representative subsample (part) of the...
• Equivalent Sample Preparation ProcedurePublished VCS or EPA method that: Clearly states that the standard, practice or method is appropriate for the...
• Equivalent Sound LevelLevel, in decibels, of the mean-square A-weighted sound pressure during a stated time period, with reference...
• Equivalent Substance1. That a chemical substance or mixture is able to represent or substitute for another in a test or series of...
• Equivalent SystemWastewater treatment system that is demonstrated in literature, treatability tests or self-monitoring data to...
• Equivalent Test Weight1. Weight, within an inertia weight class, which is used in the dynamometer testing of a vehicle and which is...
• Equivalent TreatmentWastewater treatment system that achieves comparable pollutant removals to the applicable treatment...
• Equivalent Usage RatioA basis for comparing two or more products that fulfill the same function. For example, comparing two...
• Equivalent Water TreatmentFor the purposes of this subpart means treatment by screening, sedimentation, and skimming adequate to remove...
• Ergonomics1. Applied science that investigates the impact of people's physical environment on their health and comfort...
• ErgotErgot is a disease of cereal grains such as rye and wheat in which the grains are replaced by ergot sclerotia...
• Ergot AlkaloidsThe main ergot alkaloid, ergotamine, has vasoconstrictive properties that can cause swollen limbs, and...
• ErgotamineA vasoconstrictor found in ergot of Central Europe. It is a serotonin agonist that has been used as an...
• Erodibility IndexA numerical expression of the potential of a soil to erode, considering the physical and chemical properties...
• Erosion1. Removal of soil by water or wind.
• Erosion ApronErosion protection placed on the streambed in an area of high flow velocity, such as downstream from a...
• Erosion ControlPreventing wind and water movement of the earth's solid surface material to another location.
• erosion control blanketsA manufactured sheet, typically rolled on a spool consisting of a matrix of straw, coconut fiber, aspen...
• Erosion ScarpA long, steep slope or line of cliffs at the edge of a plateau or ridge formed by erosion.
• erosional beachesBeaches that lose more sand than they receive through deposits of waves and wind.
• erosion-based setback1. A setback equal to an estimated annual erosion rate multiplied by a number of years set by statute or...
• error1. Any discrepancy between a computed, observed, or measured quantity and the true, specified, or...
• Error Based WeightingCritical to integrated use of data in IEMs; is complicated by need to synchronize weights among various...
• Error by TypeCataloged errors and probabilities of error.
• Error Evaluation and PropagationStarts with data used to construct the component and IEM models, and proceed to the analysis of predictions...
• ErwiniaA genus of gram-negative, facultatively anaerobic, rod-shaped bacteria whose organisms are associated with...
• ErythemaRedness of the skin produced by congestion of the capillaries
• Erythrocyte1. Mature erythrocytes are non-nucleated, biconcave disks containing hemoglobin whose function is to...
• Erythrocyte FunctionRed blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function...
• ESA-listed Aquatic SpeciesA group of organisms that live in the water for most or all of its life and are designated as threatened or...
• Escalante Desert-Sevier LakeThe Escalante Desert and the Sevier Lake closed basins. Nevada, Utah. Area = 16200 sq.mi.
• Escalation RateA percentage that is used to adjust a forecast of expenditures to account for the increasing value of a good...
• Escape BehaviorAnti-predation behavior exhibited when threatened
• Escape ReactionIn animal behavior, a response to a predator or other dangerous situation, in which the threatened animal may...
• Escherichia coliCommon bacterium that has been studied intensively by geneticists because of its small genome size, normal...
• Escherichia coli InfectionInfections with bacteria of the species Eschericia Coli. (MSH2003_2003_05_12)
• Escherichia coli strain O111A species of facultatively anaerobic, gram negative, straight rod shaped bacteria assigned to the phylum...
• Escherichia coli strain O157:H7A species of facultatively anaerobic, Gram negative, rod shaped bacterium assigned to the phylum...
• EskerA long, narrow, sinuous, steep-sided ridge composed of irregularly stratified sand and gravel that was...
• Esophageal DisordersA non-neoplastic or neoplastic disorder that affects the esophagus. Representative examples of non-neoplastic...
• Esophagus1. The muscular membranous segment between the pharynx and the stomach in the upper gastrointestinal tract.
• Essential Amino AcidsAmino acids that are not synthesized by the human body in amounts sufficient to carry out physiological...
• Essential Fatty AcidsLong chain organic acid molecules that must be obtained from the diet. Examples are linolic acids and...
• Essential HabitatSpecific areas crucial to the conservation of a species that may necessitate special considerations.
• Essential Metered Dose InhalerMetered dose inhalers for the treatment of asthma and chronic obstructive pulmonary disease, approved by the...
• essential turfTurf required for the identified needs of the facility or jurisdiction, e.g., security, historic...
• Essential Use1. Uses of controlled substances designated by the Parties to the Protocol to be necessary for the health and...
• Essential UsesThose uses of controlled substances designated by the Parties to the Montreal Protocol to be necessary for...
• Essential WorkerWorkers providing health care, food service, and public transportation; necessary for basic society...
• Essentially Impervious BaseA base underlying containers that is free from cracks and gaps and prevents penetration of leaks, spills, or...
• Essentially Sessile Benthic OrganismsOrganisms that essentially stay at or near a localized spot in a water body during the adult stage of their...
• Essential-Use AllowancePrivileges granted by § 82.4(n) to produce class I substances, as determined by allocation decisions made by...
• Essential-Use ChlorofluorocarbonsCFCs (CFC-11, CFC-12, or CFC-114) produced under the authority of essential-use allowances and not the...
• Essential-Use GasUnder the Montreal Protocol, certain ozone depleting gases may be imported, exported, or manufactured for...
• Established Pesticide Residue LevelTolerance, temporary tolerance, food additive regulation, action level, or other limitation on pesticide...
• Established Technology1. An established technology is a technology for which cost and performance information is readily available...
• Established Tire Collection ProgramComprehensive collection system or contractual arrangement that ensures scrap tires are not discarded and are...
• Established Treatment TechnologiesTechnologies for which cost and performance data are readily available.
• Establishment1. A single, permanent, physical office location where business is conducted and for which revenue...
• EsterA compound formed by the reaction between an acid and an alcohol with the elimination of a molecule of water.
• EsterificationAny chemical reaction between an acid and an alcohol that results in the production of an ester.
• EstersOrganic acids where the replaceable hydrogen has been replaced by an organic radical.
• Estimate1. An empirical value derived from data for a parameter.
• Estimate Intralitter CorrelationsProvides user with the option to allow the models to attempt to estimate intralitter correlations or assume...
• Estimated 100-year Floodplain"Definition 1: This map depicts the estimated 100-year floodplains for the Conterminous US for 2016. These...
• Estimated Annual Fuel CostsAn estimate of the annual cost to fuel the vehicle, based on the vehicle's combined city/highway fuel...
• Estimated Detection LimitThe minimum qualitatively recognizable signal above background for a target compound. The EDL is a detection...
• Estimated Environmental Concentration1. The estimated pesticide concentration in an environment, such as a terrestrial ecosystem.
• Estimated Exposure DoseThe measured or calculated dose to which humans are likely to be exposed considering all sources and routes...
• Estimation ErrorThe amount by which an estimate differs from a true value. This error includes the error from all sources...
• Estimation FunctionA function that estimates loads when monitoring data are not reported for one or more monitoring periods in a...
• EstradiolGenerally refers to the 17-beta-isomer of estradiol, an aromatized C18 steroid with hydroxyl group at 3-beta-...
• EstrogenCompounds that interact with estrogen receptors in target tissues to bring about the effects similar to those...
• Estrogen Activity InductionEstrogen Activity Induction involves initiation of the biological function of biochemical substances...
• Estrogen Activity InhibitionEstrogen Activity Inhibition involves interference with, such as receptor binding, or restraint of the...
• Estrogen AntagonistCompounds which inhibit or antagonize the action or biosynthesis of estrogenic compounds.
• Estrogen Elisa KitDetects the presence of endocrine disrupting compounds (EDCs) in water. ELISA kits operate on the basis of...
• Estrogen Metabolic ProcessEstrogen Metabolism consists of diverse biochemical reactions primarily in the ovary that produce 19-carbon...
• Estrogen ReceptorCytoplasmic proteins that bind estrogens and migrate to the nucleus where they regulate DNA transcription...
• EstroneAn aromatized C18 steroid with a 3-hydroxyl group and a 17-ketone, a major mammalian estrogen. It is...
• Estuaries1. Region of interaction between rivers and near-shore ocean waters, where tidal action and river flow mix...
• EstuarineAn estuary is a body of water formed where freshwater from rivers and streams flows into the ocean, mixing...
• Estuarine Coastal IntertidalThe substrate in this zone is regularly and periodically exposed and flooded by tides. This zone extends from...
• Estuarine Coastal SubsystemThe Estuarine Coastal Subsystem extends from the supratidal zone at the land margin up to the 4 meter depth...
• Estuarine Coastal Subtidal1. The substrate is generally continuously submerged in this zone and includes those areas below MLLW.
• Estuarine Coastal SupratidalThis zone includes areas above MHHW; areas in this zone are affected by wave splash and overwash. It does not...
• Estuarine HabitatAn estuary is the area where a river or stream connects with the open sea or ocean, estuarine includes the...
• Estuarine NumberA nondimensional parameter accounting for decay, tidal dispersion, and advection velocity; used for...
• Estuarine Open Water SubsystemThe Estuarine Open Water Subsystem includes all waters of the Estuarine System with a total depth greater...
• Estuarine species1. A permanent resident of an estuary. Also called a resident species.
• Estuarine SystemThe Estuarine System is defined by salinity and geomorphology. This System includes tidally influenced waters...
• Estuarine Tidal Riverine Coastal SubsystemThe Estuarine Tidal Riverine Coastal Subsystem includes the most upstream region of the estuary, in those...
• Estuarine Tidal Riverine Open Water SubsystemThe Estuarine Tidal Riverine Open Water Subsystem includes tidal freshwater areas with a salinity of <0.5 and...
• Estuarine Water ColumnThe volume of water extending from the surface down to, but not including, the substrate. For the purposes of...
• Estuarine WetlandWetlands occurring in the Estuarine System, one of five systems in the classification of wetlands and...
• Estuary1. A complex ecosystem between a river and near-shore ocean waters where fresh and salt water mix. These...
• Estuary PlumeFormation of water resulting from the discharge of low-salinity water into marine waters of the ocean...
• EtchantSubstance for marking designs on metal or glass as part of a manufacturing process.
• Etching1. An electrolytic process performed in a tank that uses or emits any of the plating and polishing metal HAP...
• Et-Epimeletic BehaviorIn animal behavior, calling or signaling for care or attention, typically seen in young animals, but also...
• EthaneParaffinic hydrocarbon with molecular formula C2H6.
• Ethanol1. An alternative automotive fuel derived from grain and corn; usually blended with gasoline to form gasohol.
• Ethanol Blender1. As defined in § 80.2(v).
• Ethanol Blending PlantAny refinery at which gasoline is produced solely through the addition of ethanol to gasoline, and at which...
• Ethanol DenaturantPCG, gasoline blendstocks, or natural gas liquids that are added to anhydrous ethanol to make the ethanol...
• Ethanol ImporterPerson who brings ethanol into the United States (including from the Commonwealth of Puerto Rico, the Virgin...
• Ethanol MetabolismEthanol Metabolism consists of various biochemical detoxification reactions that convert ethanol to metabolic...
• Ethanol ProducerAny person who owns, leases, operates, controls, or supervises a facility that produces ethanol for use in...
• Ethanol ProductionOperation that produces ethanol from the fermentation of sugar, starch, grain, or cellulosic biomass...
• Ethanol-Fueled VehicleAny motor vehicle or motor vehicle engine that is engineered and designed to be operated using ethanol fuel...
• EthersOrganic compounds where an oxygen is between two carbons.
• Ethical BehaviorActivities that reflect the norms for conduct that distinguish between acceptable and unacceptable behavior...
• Ethmoid BoneA light and spongy (pneumatized) bone that lies between the orbital part of frontal bone and the anterior of...
• Ethnic Foods ProductionProduction of canned and frozen Chinese and Mexican specialties utilizing fresh and pre-processed bean...
• Ethnic GroupThis discussion of ethnic groups applies to both Census 2000 and the American Community Survey 2004 and later...
• Ethnic OriginEthnic origin refers to an individual’s self-identification of their origin or descent, “roots,” heritage, or...
• EthnicityThere are two minimum categories for ethnicity: Hispanic or Latino and Not Hispanic or Latino. The federal...
• Ethnographic LandscapeA landscape containing a variety of natural and cultural resources that associated people define as heritage...
• Ethyl tertiary Butyl Ether1. A chemical compound produced in a reaction between ethanol and isobutylene (a petroleum-derived by-product...
• EthyleneOlefinic hydrocarbon with molecular formula C2H4.
• Ethylene DibromideA chemical used as an agricultural fumigant and in certain industrial processes. Extremely toxic and found to...
• Ethylene Dichloride PlantAny plant which produces ethylene dichloride by reaction of oxygen and hydrogen chloride with ethylene.
• Ethylene Dichloride PurificationAny part of the process of ethylene dichloride purification following ethylene dichloride formation, but...
• Ethylene Glycol1. Ethylene glycol is a useful industrial compound found in many consumer products, including automotive...
• Ethylene OxideEthylene oxide is a flammable, colorless gas used to make other chemicals that are used in making a range of...
• Ethylene Oxide EmissionEmission of ethylene oxide which is a flammable, colorless gas used to make other chemicals that are used in...
• Ethylene Oxide Source by Amount UsedSources using Ethylene Oxide categorized by the amount of ethylene oxide used.
• Ethylene Process VentGas stream with a flow rate greater than 0.005 standard cubic meters per minute containing greater than 20...
• Ethylene ProductionCreation of the natural plant chemical ethylene within the plant, which induces and augments fruit ripening.
• Ethylenebisdithiocarbamic Acid, Salts and Esters (1.0)Includes any unique chemical substance that contains an EBDC or an EBDC salt as part of that chemical's...
• Ethylene-Propylene RubberEthylene-propylene copolymer or an ethylene-propylene terpolymer. Ethylene-propylene copolymers (EPM) result...
• EtiolationPlant growth exhibiting pale or bleached color due to the deprivation of light.
• EtiologyThe science of causes or origins; the cause of a specific disease.
• eucaryotesAn organism having one or more cells with well-defined nuclei.
• Euclidean ZoningZoning of the type adopted by the city of Euclid, Ohio, and made famous in 1926 by the United States Supreme...
• Eukaryotic Cell1. A cell is the basic building block of living things. All cells can be sorted into one of two groups...
• Eukaryotic Cell Cycle1. A series of events that takes place in a cell as it grows and divides. A cell spends most of its time in...
• Eukaryotic Cell StructureCharacteristics of the eukaryotic cell that include organelles and a true nucleus bound separately within...
• Eukaryotic FlagellaIn eukaryotes, flagella are threadlike protoplasmic extensions used to propel flagellates and sperm. Flagella...
• Eukaryotic Inclusion BodyA generic term for any circumscribed mass of foreign (e.g., lead or viruses) or metabolically inactive...
• Euonymus fortuneiClimbing euonymus, also known as wintercreeper, Emerald'n Gold, and Gaiety, is an evergreen, clinging vine...
• Euphorbia esulaLeafy spurge is characterized by plants containing a white milky sap and flower parts in three's. Leafy...
• Euphotic Zone1. The layer of a body of water that receives sufficient sunlight for photosynthesis. The depth of this...
• EuryhalineUsed to describe aquatic organisms that tolerate a wide range of salinities.
• Euryhaline AnimalUsed to describe aquatic organisms that tolerate a wide range of salinities.
• Euryhaline OrganismUsed to describe aquatic organisms that tolerate a wide range of salinities.
• Eutectic SaltSalt mixture with potential applications as solar thermal energy storage materials.
• Eutrophic1. (you-TRO-fick) Reservoirs and lakes which are rich in nutrients and very productive in terms of aquatic...
• Eutrophic LakeShallow lakes weed-choked at the edges and very rich in nutrients. The water is characterized by large...
• Eutrophic Lakes1. Shallow lakes weed-choked at the edges and very rich in nutrients. The water is characterized by large...
• Eutrophic Water Body1. An aquatic system with high nutrient concentrations, which fuels algal growth. This algae eventually dies...
• Eutrophication1. The process by which lakes and streams are enriched by nutrients (usually phosphorus and nitrogen) which...
• EvacuationAction and activity of removing persons and/or animals in an area of danger to an area of safety.
• Evacuation PlanIdentifies the protocol for the movement of people away from a threat or occurrence of a hazard.
• Evacuation State/LocalProvides financial resources to state and local authorities involved in evacuation activities at hazardous...
• Evaluability AssessmentNegotiation and investigation undertaken jointly by the evaluator, the evaluation sponsor, and possibly other...
• Evaluate DataA step in the Stressor Identification process in which data are analyzed to generate associations...
• Evaluated Hazardous Waste PharmaceuticalPrescription hazardous waste pharmaceutical that has been evaluated by a reverse distributed in accordance...
• Evaluation1. Evaluation has several distinguishing characteristics relating to focus, methodology, and function...
• Evaluation and Review1. One of EPA's five Assessment Factors (see definition) that describes the extent of independent...
• Evaluation and Review Methodology(Methodology) for conducting one of EPA’s five Assessment Factors (see definition) that describes the extent...
• Evaluation (model)The process used to generate information to determine whether a model and its results are of a quality...
• Evaluation PlanA written document describing the overall approach or design that will be used to guide an evaluation. It...
• Evaluation PracticeA practice or set of practices that consist mainly of management information and data incorporated into...
• Evaluation TeamThe individuals, such as the evaluation consultant and staff, who participate in planning and conducting the...
• evaporateTo change from liquid into gas.
• Evaporating Ponds or PitsDrilling and waste materials produced when tapping natural resources are stored in evaporating ponds or pits...
• Evaporation1. The process by which a liquid enters the vapor (gas) phase.
• Evaporation PondsAreas where sewage sludge is dumped and dried.
• Evaporative Cooler"Swamp" coolers, and heat-pumps and air conditioners that can by powered by solar photovoltaic systems.
• Evaporative Emission GeneratorFuel tank or vessel to which heat is applied to cause a portion of the fuel to evaporate at a desired rate.
• Evaporative Emissions1. Evaporative emissions are from fuel evaporating from vehicle carburetors or fuel systems. Evaporative...
• Evaporative FuelFuel which has a Reid Vapor Pressure (RVP, pursuant to 40 CFR part 80, appendix “E”) of 2.0 pounds per square...
• Evaporative Fuel AdditiveFuel additive which, when mixed with its specified base fuel, causes an increase in the RVP of the base fuel...
• Evaporative Fuel Emissions1. Relating to fuel emissions that result from permeation of fuel through the portable fuel container...
• Evaporative/Refueling Control SystemUnique combination within an evaporative/refueling family of canister adsorptive material, purge system...
• Evaporative/Refueling Emission Control SystemUnique combination within an evaporative/refueling family of canister adsorptive material, purge system...
• Evaporative/Refueling Emission FamilyBasic classification unit of a manufacturers’ product line used for the purpose of evaporative and refueling...
• Evaporative/Refueling FamilyBasic classification unit of a manufacturers’ product line used for the purpose of evaporative and refueling...
• Evaporator SystemAll equipment associated with increasing the solids content and/or concentrating spent cooking liquor from...
• Evaporite MineralA mineral precipitated as a result of evaporation, such as halite.
• Evapotranspiration1. Evaporation of water from soil, and transpiration of water from plants.
• Evapotranspiration Landfill Cover SystemAlternative final cover systems used at waste disposal sites. ET covers use one or more vegetated soil layers...
• Evapotranspiration ProcessPart of the water cycle. Sum of evaporation from the land surface plus transpiration from plants.
• Evapotranspiration/Infiltration ProcessParts of the water cycle which may be used in wastewater treatments. See the respective terms for definitions.
• Event CausationEvent causation follows Hume in stating that causation is a connection between one event and another. For...
• Event Detection SystemA proactive approach to mitigating a contamination incident. These system use advanced monitoring...
• Event emissionsSignificant, reportable air emissions resulting from unexpected activities, including wildfires, controlled...
• EvergreenIn database terms, evergreen means that the data is constantly being added. As new studies are published...
• Evidence1. Knowledge that changes one's degree of belief in a proposition (a general definition).
• Evidence from Beyond the CaseEvidence based on data or observations from laboratory studies or field studies conducted outside the case.
• Evidence from the CaseEvidence based on data or observations from the impaired system or reference systems that are adjoining or...
• Evidence of ExposureEvidence indicating that organisms took up or contacted a stressor.
• Evidence of Hazardous Substance MigrationChemical analyses and/or visual evidence that demonstrate hazardous substances attributable to a source have...
• Evidence TypeCategory of relationships that provides a logically distinct way to support, weaken, or refute the case for a...
• EVIDENTIAL VALUEThe usefulness of records in documenting the organization, functions, and activities of the agency creating...
• EvolutionThe process of cumulative change over successive generations through which organisms acquire their...
• Evolutionarily Significant UnitA population or group of populations that is considered distinct (and hence a "species") for purposes of...
• Evolutionary ToxicologyFocuses on the drivers, mechanisms, and outcomes of pollution-driven genetic differentiation among populations
• Ewing's SarcomaA type of bone cancer that usually forms in the middle (shaft) of large bones.
• EX GasolineGasoline-ethanol blend that contains less than 9 volume percent ethanol where X equals the maximum volume...
• Ex Parte Communication1. Any communication, written or oral, relating to the merits of an adjudicatory proceeding under part 78 of...
• Ex Refinery GatePoint at which a petroleum product leaves the refinery.
• Ex Situ1. The term ex situ or "moved from its original place," means excavated or removed.
• Ex Situ ConservationThe preservation of components of biological diversity outside their natural habitats, e.g., in zoos...
• Exacerbation of AsthmaIncrease in the frequency or severity of asthma attacks or symptoms in individuals who have asthma.
• Exact Match Automotive FinishTopcoat which meets all of the following criteria:(1) The product is designed and labeled exclusively to...
• Exact Match Finish Engine PaintCoating which meets all of the following criteria: (1) The product is desiged and labeled exclusively to...
• Exact Match Industrial FinishCoating which meets all of the following criteria:(1) The product is designed and labeled exclusively to...
• EXAMSTier II Surface Water Computer Model
• Excavation ZoneVolume containing the tank system and backfill material bounded by the ground surface, walls, and floor of...
• Exceedance1. Violation of the pollutant levels permitted by environmental protection standards.
• Excepted EngineMust conform to regulatory conditions specified for an exception in this part and other applicable...
• Excepted Monitoring SystemMonitoring system that follows the procedures and requirements of § 75.15 of this chapter, § 75.19 of this...
• Exception ReportA report, submitted by LQGs and SQGs, detailing efforts to locate wastes when a signed copy of the manifest...
• Exceptional Event1. Event that affects air quality, is not reasonably controllable or preventable, is an event caused by human...
• ExceptionsCompanies manufacturing substitutes outside the U.S. who are producing solely for use by entities outside the...
• Excess AlgaeOccur when excess nutrients, warm water temperatures, and reduced flow trigger the overgrowth of naturally...
• Excess Aquatic WeedExcess aquatic weeds (noxious aquatic plants) choke waterways, degrade healthy aquatic habitats, and...
• Excess Cancer RiskThe additional or extra risk of developing cancer due to exposure to a toxic substance incurred over the...
• Excess Emissions1. Emissions of an air pollutant in excess of an emission standard. [40 CFR 51.100 (CFR 2013)]Emissions of an...
• Excess Emissions and Monitoring Systems Performance ReportReport that must be submitted periodically by a source in order to provide data on its compliance with stated...
• Excess Emissions Conditions1. Some sources are unable to comply with their emissions limits during startup and shutdown. Excess...
• Excess Lifetime RiskThe additional or extra risk of developing cancer due to exposure to a toxic substance incurred over the...
• Excess Limits CoverageProvides coverage against losses in excess of a specified dollar limit or attachment point.
• Excess Personal PropertyAny personal property under the control of a Federal agency that the agency head determines is not required...
• EXCESS PROPERTYProperty under the control of any federal awarding agency that, as determined by the head thereof, is no...
• Excess RiskProportion of individuals or animals observed or estimated to possess an effect in addition to the...
• Excess SedimentProblem when rain washes soil into waterways from fields, construction sites, yards, logging areas, city...
• Excess Spoil1. Overburden material that is disposed of in a location other than the mine pit. [30 CFR 701.5 (CFR 2013)]
• Excess Water Control SystemStructural system required to dispose of quantities of unwanted water.
• Exchange Network1. A secure Internet- and standards-based approach for exchanging data. Partners on the Exchange Network...
• Exchange Network Discovery Services1. Registry of Exchange Network nodes, dataflows and Web services. It is also a tool to manage and deliver...
• Exchange Network NodeAn end point in the Exchange Network that consumes or provides services. A node consists of all computer...
• Exchange Network ServiceA software component that implements standard Web services on the Exchange Network. Exchange Network Services...
• Exchange Network Services CenterThe ENSC is a browser-based portal that provides Exchange Network partners access to a broad range of Network...
• Exchange ValueValue assigned to a regulated substance in accordance with AIM Act subsections (c) and (e), as applicable.
• Exchange Value EquivalentExchange value-weighted amount of a regulated substance obtained by multiplying the mass of a regulated...
• Excipient1. Usually inert substances added to a prescription in order to provide suitable consistency to the dosage...
• Excision RepairExcision Repair mechanisms remove and replace damaged nucleotides from DNA molecules with new nucleotide...
• Excluded Engine1. Excluded engines that have been excluded from the emission requirements of the Clean Air Act. Reasons for...
• Excluded FuelThe provisions of this subpart do not apply to - (1) Distillate fuel that is designated for export outside...
• Excluded LocomotiveRelating to a locomotive that either has been determined not to be a locomotive (as defined in this section)...
• Excluded Manufacturing ProcessManufacturing process in which quantities of PCBs, as determined in accordance with the definition of...
• Excluded Polychlorinated Biphenyls ProductPCB materials which appear at concentrations less than 50 ppm, including but not limited to:(1) Non-Aroclor...
• Excluded Scrap MetalProcessed scrap metal, unprocessed home scrap metal, and unprocessed prompt scrap metal.
• Excluded VehicleExcluded vehicles that have been excluded from the emission requirements of the Clean Air Act. Reasons for...
• Excluded Vehicle/EngineExcluded vehicles or engines that have been excluded from the emission requirements of the Clean Air Act...
• ExclusionIn the asbestos program, one of several situations that permit a Local Education Agency (LEA) to delete one...
• Exclusionary OrdinanceZoning that excludes classes of persons or businesses from a particular neighborhood or area.
• Exclusionary ZoningZoning that excludes classes of persons or businesses from a particular neighborhood or area.
• Exclusive Economic ZoneZone contiguous to the territorial sea of the United States extending to a distance up to 200 nautical miles...
• Exclusive GoodsA good which because of its physical properties, prevents, excludes or forces an individual to pay in order...
• Exclusive Use StudyStudy that meets each of the following requirements:(1) The study pertains to a new active ingredient (new...
• Exclusively breast fedInfants whose sole source of milk comes from human milk with no other milk substitutes.

1,815 of 30,736 terms in Environment terminology (MLC-0121). Request the full dataset.