Environment terminology · MLC-0121

Environment terms: E (1,770)

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Emergency removal action1. Steps take to remove contaminated materials that pose imminent threats to local residents (e.g. removal of...
Emergency reserve contributionFunds set aside for unexpected repairs and replacements. CUPSS recommends that utilities work towards an...
Emergency responderIncludes Federal, State, territorial, tribal, substate regional, and local governments, private-sector...
Emergency Response1. Emergency Response involves the immediate actions taken to respond to a disaster. These actions include...
Emergency response activationNotification by telephone or other expeditious manner or, when required, the assembly of some or all...
Emergency response drinking water treatmentMethod for treating small quanitities of water such as boiling the water or using chemicals (chlorine...
Emergency response notification systemSee http://www.nrc.uscg.mil/index.html. The Emergency Response Notification System (ERNS) is a database used...
Emergency response personnelIncludes Federal, State, territorial, tribal, substate regional, and local governments, private-sector...
Emergency response plan1. Documented plan that describes the actions that a water system would take in response to various major...
Emergency response reimbursementForm 9310-1, shown in appendix III of this part, including all documentation and additional information you...
Emergency response valuesConcentrations of chemicals, published by various groups, defining acceptable levels for short-term exposures...
Emergency shutdown deviceDevice which functions exclusively to protect personnel and/or prevent physical damage to equipment by...
Emergency stationary engineStationary reciprocating internal combustion engine (RICE) that meets all of the criteria in paragraphs (i)...
Emergency stationary internal combustion engineStationary reciprocating internal combustion engine that meets all of the criteria in paragraphs (1) through...
Emergency stationary reciprocal internal combustion engineStationary reciprocating internal combustion engine that meets all of the criteria in paragraphs (1) through...
Emergency suspensionSuspension of a pesticide product registration due to an imminent hazard. The action immediately halts...
Emergency vehicle1. Any vehicle that is legally authorized by a governmental authority to exceed the speed limit to transport...
Emergency vent streamFor the purposes of these standards, an intermittent emission that results from a decomposition, attempts to...
Emergency/Disaster Preparedness/MitigationSystems or plans to be used in case of an emergency or disaster.
Emergency-operating recordsThat type of vital records essential to the continued functioning or reconstitution of an organization during...
Emergent1. Growing in water, with the majority extending above the water's surface.
Emergent design1. An implementation plan in which the specification of every step depends upon the results of previous steps.
Emergent plant1. Aquatic plants which have their upper structures (e.g. leaves, stems or inflorescences) extended out of...
Emergent propertiesProperties of a complex system (or group) that arise from the interactions among the individual parts or...
Emergent vegetation“Erect, rooted herbaceous angiosperms that may be temporarily to permanently flooded at the base but do not...
Emerging communicable diseasesInfectious diseases that are novel in their outbreak ranges (geographic and host) or transmission mode.
Emerging contaminantAny synthetic or naturally occurring chemical or any microorganism that is not commonly monitored in the...
Emerging control measure1. A class of control measure that has not frequently been deployed to-date, but is expected to come into use...
Emerging infectious diseaseInfections that are rapidly increasing in incidence or geographic range.
Emerging pathogenAn illness-causing microorganism that is either: 1) previously unknown to be a human pathogen; 2) not...
Emerging pathogens, see Emerging pathogen
Emerging sulfur dioxide control technologyAny SO2 control system that is not defined as a conventional technology under this section, and for which the...
Emerging technology1. An emerging technology is an innovative technology that currently is undergoing bench-scale testing...
EmergyAll the available energy of one kind used up both directly and indirectly in the past to make a product or...
Eminent domainThe right of a government or its agent to expropriate private property for public use, with payment of...
Emission1. The release or discharge of a substance into the environment. Generally refers to the release of gases or...
Emission budgetThose portions of the applicable SIP's projected emission inventories that describe the levels of emissions...
Emission by release typePotentially polluting emissions categorized by their length and/or the conditions occurring during, or...
Emission by source typeEmissions by types of sources of the harmful substances introduced into the environment
Emission by substanceThe emission of substances by their chemical or physical form
Emission capA limit designed to prevent projected growth in emissions from existing and future stationary sources from...
Emission certification standardEPA and California-required standards. The names refer to tables of numerical limits for the various air...
Emission characterizationDetermination of the chemical composition of emissions.
Emission control area1. "ECA" as defined in 40 CFR 1043.20 as well as "ECA associated area" as defined in 40 CFR 1043.20.
Emission control area associated area1. U.S. internal waters that are navigable from the ECA. This term does not include internal waters that are...
Emission control deviceAny solvent recovery or solvent destruction device used to control volatile organic compounds (VOC) emissions...
Emission credit1. Amount of emission reduction or exceedance, by a nonroad engine family, below or above the emission...
Emission credit bankingOne of the following: (1) The retention of NOX emission credits for complete heavy-duty vehicles by the...
Emission credit trading1. Exchange of credits between manufacturers.
Emission credits averaging1. Exchange of emission credits among engine families within a given manufacturer's product line.
Emission dataWith reference to any source of emission of any substance into the air - (A) Information necessary to...
Emission factor1. The relationship between the amount of pollution produced and the amount of raw material processed. For...
Emission family1. Meaning given in § 59.625.
Emission generationOperation of a vehicle or engine or the vaporization of a fuel or additive/fuel mixture under controlled...
Emission guideline1. Guideline set forth in subpart C of this part, or in a final guideline document published under §...
Emission indexQuantity of pollutant emitted per unit of fuel mass used.
Emission inventory1. A listing, by source, of the amount of air pollutants discharged into the atmosphere of a community; used...
Emission inventory and analysis groupEmission Inventory and Analysis Group (of EPA's Office of Air, OAQPS, located in RTP, NC). Develops and...
Emission inventory systemAn EPA information system for collecting emission inventory data and generating emission inventories. Learn...
Emission limitation1. Emission limit, operating limit, or work practice standard.
Emission limitation or standard1. Any applicable requirement that constitutes an emission limitation, emission standard, standard of...
Emission measurement technologyMeasures pollution discharged into the atmosphere from smokestacks, other vents, and surface areas of...
Emission offsetEmissions reductions which are quantifiable, consistent with the applicable SIP attainment and reasonable...
Emission performance warrantyWarranty described in § 85.2103(c) and 42 U.S.C. 7541(b).
Emission point1. Individual process vent, storage vessel, transfer rack, wastewater stream, kiln, fiber spinning line...
Emission potential1. Capability at maximum design capacity to emit a pollutant after the application of air pollution control...
Emission preventionElimination of the practice of discharging an air pollutant into the atmosphere
Emission process tableEmission process table used in NIF 3.0 for 2002 and 2005 NEI submittals.
Emission rate1. The amount of a given substance discharged to the air per unit time, expressed as a fixed ratio (e.g...
Emission rate cutoffThreshold annual emission rate to which a landfill compares its estimated emission rate to determine if...
Emission reductionDecrease in the amount of air pollutant discharged into the atmosphere.
Emission related partThose parts installed for the specific purpose of controlling emissions or those components, systems, or...
Emission release tableEmission release table used in NIF 3.0 for 2002 and 2005 NEI submittals.
Emission samplingRemoval of a fraction of collected emissions for testing purposes.
Emission speciationAnalysis of vehicle or engine emissions to determine the individual chemical compounds which comprise those...
Emission spectroscopyMethod of chemical analysis in which elements are identified by their bright emission lines seen in the...
Emission standard1. The maximum amount of air polluting discharge legally allowed from a single source, mobile or stationary.
Emission standard phase 11. Relating to Phase 1 standards of §§ 1051.103, 1051.105, or 1051.107, or other Phase 1 standards specified...
Emission standard phase 21. Relating to Phase 2 standards of § 1051.103, or other Phase 2 standards specified in subpart B of this...
Emission standard phase 31. Relating to Phase 3 standards of § 1051.103, or other Phase 3 standards specified in subpart B of this...
Emission standard tier 01. Relating to emission standards applicable to locomotives originally manufactured before January 1, 2002...
Emission standard tier 11. Relating to emission standards applicable to locomotives originally manufactured on or after January 1...
Emission standard tier 21. Relating to emission standards applicable to locomotives originally manufactured on or after January 1...
Emission standard tier 31. Relating to the Tier 3 emission standards, as shown in § 1033.101.
Emission standard tier 41. Relating to the Tier 4 emission standards, as shown in § 1033.101.
Emission standardsGovernment standards that establish limits on discharges of pollutants into the environment (usually in...
Emission tableEmission table used in NIF 3.0 for 2002 and 2005 NEI submittals.
Emission testingAs used in this document, "emissions test" is used as a convenient abbreviation for the collection of all...
Emission unit1. Any part of an air pollution source that emits, or may emit, air pollutants into the atmosphere.
Emission unit tableA table used in NIF 3.0 for 2002 and 2005 NEI submittals.
Emission-control system1. Any device, system, or element of design that controls or reduces the emissions of regulated pollutants...
Emission-data engine1. Engine which is tested for purposes of emission certification or production line testing.
Emission-data equipmentEngine, piece of equipment, or fuel system component that is tested for certification. This includes units...
Emission-data locomotiveLocomotive which is tested for purposes of emission certification or production line testing.
Emission-data unit1. Portable fuel container that is tested for certification. This includes components tested by EPA.
Emission-data vehicle1. Vehicle that is tested for certification. This includes vehicle tested to establish deterioration factors.
Emission-limiting strategyStrategies that directly specify limits on total mass emissions, emission-related parameters (e.g., emission...
Emission-related componentAny component which can affect emissions.
Emission-related defect1. Defect in design, materials, or workmanship in a device, system, or assembly described in the approved...
Emission-related maintenance1. Maintenance that substantially affects emissions or is likely to substantially affect emission...
Emissions, see Emission
Emissions allowable under the permitA federally enforceable permit term or condition determined at issuance to be required by an applicable...
Emissions averaging sourceFor purposes of the emissions averaging provisions of § 63.8595(h), the collection of all existing ceramic...
Emissions coefficientA unique value for scaling emissions to activity data in terms of a standard rate of emissions per unit of...
Emissions control strategyCombination of measures designated to achieve the aggregate reduction of emissions necessary for attainment...
Emissions control strategy implementation plan revisionImplementation plan which contains specific strategies for controlling the emissions of and reducing ambient...
Emissions factor1. A unique value for scaling emissions to activity data in terms of a standard rate of emissions per unit of...
Emissions inventory1. A dataset that contains emissions data for multiple emissions sources and often multiple pollutants. A...
Emissions inventory system1. EPA's information system that stores all current and historical emissions inventory data. It will be used...
Emissions limitation1. Any emission limit, opacity limit, operating limit, or visible emissions limit.
Emissions modelModeling which estimates the rate or the amount of pollutant emissions to water bodies and the atmosphere...
Emissions modeling frameworkA client-server computer software system developed by the EPA to manage data related to emissions modeling...
Emissions monitoringComplete and consistent accounting of emissions; many sources use continuous emissions monitoring systems...
Emissions processAn operation or function by an emissions unit that produces emissions, characterized by an SCC.
Emissions sectorA group of processes which are related and identified by common, shared measures, such as activities...
Emissions taxA charge levied on each unit of pollution emitted.
Emissions tradingThe creation of surplus emission reductions at certain stacks, vents or similar emissions sources and the use...
Emissions unit1. Emissions Units include all individual pieces of equipment that emit air pollutants at a stationary...
Emissions-related informationAny information related to the diagnosis, service, and repair of emissions-related components...
Emissions-related training informationAny information related training or instruction for the purpose of the diagnosis, service, and repair of...
EmittanceThe emittance of a material refers to its ability to release absorbed heat. Scientists use a number between 0...
Empirical1. Relying upon or gained from experiment or observation.
Empirical distribution1. A representation of observed values or data of a series or population.
Empirical distribution functionThe EDF, also called the empirical CDF (ECDF), is based on the frequency distribution of observed values for...
Empirical model1. An empirical model is one where the structure is determined by the observed relationship among...
Empirical model developmentDevelopment of an empirical model where the structure is determined by the observed relationship among...
Empirical researchResearch that uses data drawn from observation or experience.
Empirical validityEmpirical evidence that an instrument measures what it has been designed to measure.
Empirically derived dataData derived by experimentation and observation
Employed personPersons 16 years and over in the civilian noninstitutional population who, during the reference week, (a) did...
Employee1. One employed by another usually for wages or salary and in a position below the executive level.
Employee claimDemand for payment by an employee or his/her representative for the value or the repair cost of an item of...
Employee development & performance managementEmployee Development and Performance Management designs, develops, and implements a comprehensive employee...
Employee relationsEmployee Relations designs, develops, and implements programs that strive to maintain an effective...
Employee salary offsetAdministrative collection of a debt by deductions at one or more officially established pay intervals from...
EmployerAny manufacturer, importer, processor, or user of chemical substances or mixtures.
Employer tenureThe length of time a worker has been with the same employer.
Empowerment evaluationAn approach to gathering, analyzing, and using data about a program and its outcome that actively involves...
Empty containerContainer for which either of the following conditions exists: the container meets the conditions for an...
Emptying1. Partial or complete removal of stored liquid from a storage vessel. Storage vessels that contain liquid...
EMS coordinatorA member of the EPA Region 7 staff assigned with the responsibility for overall management of the EMS, to...
EMS fileThis is the file maintained by the EMS coordinator which contains all of the current documents listed in...
EMS implementing proceduresThose procedures developed and implemented by Region 7 that identify the key elements of the EMS, as well as...
EmulsificationThe formation of a mixture of two liquids, such as oil and water, in which one of the liquids is in the form...
Emulsified fuelEmulsified diesel is a blended mixture of diesel fuel, water, and other additives that reduces emissions of...
Emulsified zero-valent ironNanoparticle used to remediate chlorinated solvents. EZVI consists of nano- or micro-scale ZVI surrounded by...
EmulsifierA chemical that aids in suspending one liquid in another. Usually an organic chemical in an aqueous solution.
Emulsion1. A suspension of light-sensitive chemicals in a viscous medium to form a coating on photographic film or...
Emulsion cleaningEmulsion cleaning is an alkaline cleaning operation that uses either complex chemical enzymes or common...
Emulsion processProcess where the monomer(s) is dispersed in droplets throughout the water phase with the aid of an...
EnalaprilOne of the angiotensin-converting enzyme inhibitors that is used to treat hypertension.
Enamel1. Coating which cures by chemical cross-linking of its base resin and is not resoluble in its original...
Enamel reducerAny solvent used to thin enamels.
Encapsulated PostScriptis a vector format designed for printing to PostScript printers and imagesetters. It is considered one of the...
Encapsulation1. The treatment of ACBM with material that surrounds or embeds asbestos fibers in an adhesive matrix to...
Encapsulation technologyThe treatment of asbestos-containing material with a liquid that covers the surface with a protective coating...
Enclosed combustion deviceFlare that uses a closed flame.
Enclosed combustor1. Enclosed firebox which maintains a relatively constant limited peak temperature generally using a limited...
Enclosed hard chromium electroplating tankChromium electroplating tank that is equipped with an enclosing hood and ventilated at half the rate or less...
Enclosed process1. Manufacturing or processing operation that is designed and operated so that there is no intentional...
Enclosed railcar loading stationPortion of a nonmetallic mineral processing plant where nonmetallic minerals are loaded by an enclosed...
Enclosed seaA large, water body almost completely surrounded by land. Salinities range from fresh through marine. The...
Enclosed storage areaAny area covered by a roof under which metallic minerals are stored prior to further processing or loading.
Enclosed transfer methodParticulate HAP transfer method that uses an enclosed system to prevent particulate HAP from entering the...
Enclosed truck loading stationPortion of a nonmetallic mineral processing plant where nonmetallic minerals are loaded by an enclosed...
Enclosing landscapeAn outdoor space (rather than strictly a view type) with definite vi¬sual sidewalls or edge lines (formed by...
Enclosure1. An airtight, impermeable, permanent barrier around ACBM to prevent the release of asbestos fibers into the...
Enclosure technologyEither temporary or permanently installed structures that completely surround a source(s) of emissions.
End bellsDevices used to hold the rotor and stator of a motor in position.
End boxContainer(s) located on one or both ends of a mercury chlor-alkali electrolyzer which serves as a connection...
End box ventilation systemVentilation system which collects mercury emissions from the end-boxes, the mercury pump sumps, and their...
End coatingApplication of end seal compound or repair spray on can ends during manufacturing.
End finisherContainer(s) located on one or both ends of a mercury chlor-alkali electrolyzer which serves as a connection...
End moraineA ridge-like accumulation that is being (or was) produced at the outer margin of an actively flowing glacier...
End of life pathwayThe end-of-life management strategies available in WARM: recycling, composting, combustion, and landfilling...
End of pipeThe point at which final mill effluent is discharged to waters of the United States or introduced to a POTW.
End pointSamples are titrated to the end point. This means that a chemical is added, drop by drop, to a sample until a...
End productSupplies delivered under a line item of a Government contract, except for use in part 25 and the associated...
End seal compoundCoating applied onto ends of cans that functions to seal the end(s) of a can to the can body.
End stateAny one of a number of ecosystem characteristics observed at a point in time. The term is commonly used to...
End timeThe composite sample end time based on a 24-hour clock.
End useFixtures, appliances, and activities that use water.
End User1. The person or group that uses data, information, tools, methods, models or systems developed by the ESRP...
EndangeredReferring to an endangered species; any species in danger of extinction throughout all or a significant...
Endangered animal species1. An organism in danger of disappearing from the earth if its situation is not improved. When its race has...
Endangered plant species1. Referring to an endangered species; any species in danger of extinction throughout all or a significant...
Endangered Species1. Animals, birds, fish, plants, or other living organisms threatened with extinction by anthropogenic...
Endangered Species ActTo provide for the conservation of endangered and threatened species of fish, wildlife, and plants, and for...
EndangermentThe construction, operation, maintenance, conversion, plugging, or abandonment of an injection well, or the...
Endangerment assessment1. A site-specific risk assessment of the actual or potential danger to human health or welfare and the...
Endemic1. (en-DEM-ick) Something peculiar to a particular people or locality, such as a disease which is always...
Endemic animal speciesA species that is restricted in its distribution to a particular locality or region.
Endemic diseaseConstant presence of a disease or infectious agent within a given geographic area or population group; may...
Endemic plant speciesSpecies that is restricted in its distribution to a particular locality or region.
Endemic speciesA species that is restricted in its distribution to a particular locality or region.
Ending dateThe term used in the query process to denote the maximum date the sample start date may be in order for the...
EndocardiumThe layer of endothelial cells and connective tissue lining the chambers of the heart.
Endocrine disordersAny deviation from the normal structure or function of the endocrine system that is manifested by a...
Endocrine disruptor1. Synthetic chemical that disrupts normal endocrine system functions in humans and wildlife by blocking or...
Endocrine disruptors, see Endocrine disruptor
Endocrine gland1. Ductless glands that secrete substances which are released directly into the circulation and which...
Endocrine modulatorEnvironmental Hormone Endocrine Active Compound
Endocrine regulationRefers to tissue that makes and releases hormones that travel in the bloodstream and control the actions of...
Endocrine system1. The system of glands that release their secretions (hormones) directly into the circulatory system. In...
Endocrine tissueRefers to tissue that makes and releases hormones that travel in the bloodstream and control the actions of...
EndocytosisCellular uptake of extracellular materials within membrane-limited vacuoles or microvesicles by invagination...
End-of-life pathways, see End of life pathway
End-of-pipe impactImpacts that occur in the immediate vicinity of an outfall.
End-of-pipe impacts, see End-of-pipe impact
End-of-pipe systemANY device and/or treatment system applied to stormwater, combined wastewater, municipal wastewater and/or...
End-of-the-pipeTechnologies such as scrubbers on smokestacks and catalytic convertors on automobile tailpipes that reduce...
Endogenous chemicalA substance originated by the biological system in which it is found
Endometriosis1. The growth of functional endometrial tissue in anatomic sites outside the uterine body. It most often...
Endomycorrhizal fungusA type of mycorrhizal fungi that invades the cells of plant roots.
Endophyte-caused diseasesDiseases caused by an organism living within tissues of a live plant.
Endoplasmic reticulumA system of cisternae in the CYTOPLASM of many cells. In places the endoplasmic reticulum is continuous with...
EndorphinsOne of the three major groups of endogenous opioid peptides. They are large peptides derived from the...
EndorsementAn addition, not a part of the original contract, which cites certain terms and which becomes a legal part of...
EndospermNutritive tissue of the seeds of flowering plants that surrounds the embryos. It is produced by a parallel...
Endospore-forming bacteriaA group of rods or cocci whose taxonomic affinities are uncertain. They form endospores, thick-walled bodies...
EndosymbiontAn organism that lives inside another organism, most often for the benefit of the two (example: rhizobia...
EndothermWarmblooded vertebrates; species able to internally regulate their body temperatures.
EndozoochoryThe dispersal of plant seeds or spores within the body of an animal, as passing through the animal's...
Endpoint1. An observable or measurable biological event or chemical concentration (e.g., metabolite concentration in...
Endpoint species1. A species that is the object of an assessment or test.
Endrin1. A pesticide toxic to freshwater and marine aquatic life that produces adverse health effects in domestic...
End-use application1. Processes or classes of specific applications within major industrial sectors where a substitute is used...
End-use product1. An EP is a pesticide product whose labeling (1) includes directions for use of the product (as distributed...
EnergeticsPropellants, explosives, and pyrotechnics and include materials listed at 49 CFR 172.101 as Hazard Class I...
Energized equipmentFor the purposes of this subpart, means connected through busbars or cables to an electrical power system or...
Energy1. Energy refers to all actions performed by the government to ensure the procurement and management of...
Energy arbitragePurchasing (storing) energy when electricity prices are low, and selling (discharging) energy when...
Energy attenuationA reduction in energy or amplitude caused by the physical characteristics of a transmitting system.
Energy auditThe process of inspecting a home, workplace, or other building in order to find ways to use less energy. For...
Energy average levelQuantity calculated by taking ten times the common logarithm of the arithmetic average of the antilogs of...
Energy balanceAn energy balance is a detailed accounting of all energy flowing into and out of a volume or surface...
Energy balance modelAn analytical technique to study the solar radiation incident on the Earth in which explicit calculations of...
Energy budgetQuantitative description of the energy exchange for a physical or ecological system. The budget includes...
Energy cane1. Complex hybrid in the Saccharum genus that has been bred to maximize cellulosic rather than sugar content...
Energy conservation1. Reduction or elimination of unnecessary energy use and waste. See energy-efficiency.
Energy conservation & preparednessEnergy Conservation and Preparedness involves protection of energy resources from over-consumption to ensure...
Energy consumer sectorDivision, most commonly used to denote type of energy consumer (e.g., residential) or according to the...
Energy consumptionThe use of energy as a source of heat or power or as a raw material input to a manufacturing process.
Energy contentThe inherent energy of a material. For example, the amount of energy in a plastic potentially available for...
Energy cropCrops grown specifically to provide the raw materials for energy production, including food crops such as...
Energy efficiency1. Refers to programs that are aimed at reducing the energy used by specific end-use devices and systems...
Energy efficiency improvementRun chemical reactions at room temperature and pressure whenever possible.
Energy efficiency portfolio standardsSimilar to renewable portfolio standards, energy efficiency portfolio standards (EEPS) require that energy...
Energy efficient buildingAn energy efficient building combines the installation of energy efficient materials and equipment which then...
Energy emergencyA condition when a Load-Serving Entity has exhausted all other options and can no longer provide its...
Energy expendituresThe amount of energy expended by an individual during activities.
Energy extractionDefined here as the extraction of fossil fuels or their precursors from the earth.
Energy generationTechnology to support the provision of power for human use such as electricity, gas, or nuclear. [Energy...
Energy, geothermal1. Hot water or steam extracted from geothermal reservoirs in the earth's crust. Water or steam extracted...
Energy grade lineA line that represents the elevation of energy head of water flowing in a pipe, conduit or channel. The line...
Energy, heatTransfer or flow of energy due to the difference in temperature between the two objects is called heat.
Energy, hydro1. The use of flowing water to produce electrical energy..
Energy Independence and Security ActTo move the United States toward greater energy independence and security, to increase the production of...
Energy Information AdministrationEnergy Information Administration of the United States Department of Energy.
Energy infrastructure1. Includes the natural gas and electrical power network, including generation (power) plants, electrical...
Energy intensityRatio between the consumption of energy to a given quantity of output; usually refers to the amount of...
Energy management programProgram that includes a set of practices and procedures designed to manage energy use that are demonstrated...
Energy management systemA control system capable of monitoring environmental and system loads and adjusting HVAC operations...
Energy metabolism processAny subcellular or molecular event, process, or condition concerned with storing and generating metabolic...
Energy performance contractA contract with an energy services company (ESCO) to implement a set of energy efficiency, renewable energy...
Energy performance contracts, see Energy performance contract
Energy Policy ActTo provide for improved energy efficiency.
Energy productionEnergy Production involves the transformation of raw energy resources into useable, deliverable energy.
Energy production facility1. Any fixed or mobile structure subject to this subpart that is either engaged in well completion or used...
Energy qualityAbility of a form of energy to do useful work. High-temperature heat and the chemical energy in fossil fuels...
Energy recovery1. To capture energy from waste through any of a variety of processes (e.g., burning). Many new technology...
Energy recovery ventilation systemA device or combination of devices applied to provide the outdoor air for ventilation in which energy is...
Energy resilienceAbility of the grid, buildings, and communities to withstand and rapidly recover from power outages and...
Energy resourceA natural resource that can be used to make heat, electricity, or any other form of energy. The most commonly...
Energy resource managementEnergy Resource Management involves the management and oversight of energy producing resources including...
Energy resources, see Energy resource
Energy savings assessment1. For the emission units covered by this subpart:(1) The energy assessment for facilities with affected...
Energy signatureThe characteristics of a stream system to allow it to transport the flows of water and sediment provided by...
Energy, solar1. The radiant energy of the sun, which can be converted into other forms of energy, such as heat or...
Energy Star1. A joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy helping to...
Energy Star®A government-supported program helping businesses and individuals protect the environment through energy...
Energy storage deviceRechargeable means of storing tractive energy on board a vehicle such as storage batteries or a flywheel.
Energy summation levelQuantity calculated by taking ten times the common logarithm of the sum of the antilogs of one-tenth of each...
Energy system emergencyPeriods when the Reliability Coordinator has declared an Energy Emergency Alert level 2 or 3 as defined by...
Energy transferMovement of energy, the ability to do work, between a system and its surroundings
Energy use optimizationSmart utilization of all types of energy to receive the most benefit at the lowest cost from each use.
Energy use reductionUsing less energy as an individual or society
Energy use systemIncludes the following systems located on the site of the affected boiler that use energy provided by the...
Energy vampireAn appliance or device that uses electricity even when it is turned off.
Energy, windKinetic energy present in wind motion that can be converted to mechanical energy for driving pumps, mills...
Energy-efficiency ratioA measure of how efficiently a cooling system (i.e. air conditioner, heat pump) operates when the outdoor...
Energy-efficient productProduct that - (i) Meets Department of Energy and Environmental Protection Agency criteria for use of the...
EnergyGuideYellow label that manufacturers are required to display on many appliances, which shows how much energy the...
Enforceable commitmentDocument drafted pursuant to section 112(i)(5)(B) of the Act and signed by a responsible company official...
Enforceable consent agreementConsent agreement used by EPA to accomplish testing where a consensus exists among EPA and interested parties...
Enforceable requirementsConditions or limitations in permits issued under the Clean Water Act Section 402 or 404 that, if violated...
Enforcement1. Activities to enforce compliance with Agency regulations through legal means, including criminal...
Enforcement action1. An enforcement action is an action undertaken by EPA under authority granted to it under various federal...
Enforcement and permit toolInstitutional controls which include permits, orders, or other enforceable agreements.
Enforcement and permit tools, see Enforcement and permit tool
Enforcement decision documentA document that provides an explanation to the public of EPA's selection of the cleanup alternative at...
Enforcement proceeding1. Rulemaking, adjudication, or licensing conducted by EPA under the Act or under regulations which implement...
Enforcement proceeding stepsEnforcement proceedings begin when an office of EPA files a “Complaint,” and end when either 1) the parties...
Enforcement sensitive informationIncludes information that would: interfere with ongoing or anticipated enforcement actions; disclose law...
Enforcement toolsTools, such as administrative orders or consent decrees, available to EPA under CERCLA and RCRA that can be...
Engine1. Technology and activities related to engines (Devices where combustion supplies the energy which is...
Engine block1. With an installed crankshaft, or a gas turbine engine. The term engine does not include engine blocks...
Engine by useEngines grouped by their function or use.
Engine code1. Unique combination, within an engine-system combination (as defined in § 86.1803 of this chapter), of...
Engine configuration1. Unique combination of engine hardware and calibration (related to the emission standards) within an engine...
Engine configuration displacementMeaning given in § 1054.140.
Engine degreaserCleaning product designed to remove grease, grime, oil, and other contaminants from the external surfaces of...
Engine depositSolid materials, largely of carbon, resulting from incomplete fuel combustion in a gasoline engine.
Engine descriptorDescriptions provided to EPA by manufacturers to differentiate models with different mpg values but otherwise...
Engine displacementVolumetric engine capacity as defined in § 205.153.
Engine dynamometer scheduleTransient engine speed versus torque time sequence commonly used in heavy-duty engine evaluation. The EDS for...
Engine exception1. To routinely allow engines to be produced and sold that do not meet (or do not fully meet) otherwise...
Engine exemptionTo allow (through a formal case-by-case process) engines to be produced and sold that do not meet (or do not...
Engine family1. Group of engines, as specified in § 90.116.
Engine governed speedEngine operating speed when it is controlled by the installed governor.
Engine identification number1. Specification (for example, model number/serial number combination) which allows a particular nonroad...
Engine idle conditionCondition where all engines capable of providing motive power to the locomotive are set at the lowest...
Engine importerEntity or person who imports engines from a foreign country into the United States (including its...
Engine International Air Pollution Prevention under Annex VI certificateCertificate issued to certify initial compliance with Regulation 13 of Annex VI. (Note that EIAPP stands for...
Engine lubricating oilPetroleum-based oils used for reducing friction in engine parts.
Engine manufacturer1. Any person who manufactures (see definition of “manufacture” in this section) a new engine or vessel or...
Engine modelEngine manufacturer’s designation for an engine grouping of engines and/or engine submodels within a single...
Engine outputEngine power, P, which is the product of engine speed, f n, and engine torque, T.
Engine paintCoating designed and labeled exclusively to coat engines and their components.
Engine rebuildActivity, occurring over one or more maintenance events, involving: (1) Disassembly of the engine including...
Engine regulatory metricEngine measurements which may or may not be confined to engines in vehicles.
Engine replacementRemoval of an engine from the coach followed by the installation of another engine. In-use compliance period...
Engine sizeA vehicle's engine size is measured by displacement, normally given in units of liters (3.2L = 3.2 liters) or...
Engine startAs used in §86.010-18 means the point when the engine reaches a speed 150 rpm below the normal, warmed-up...
Engine sub systemRefers to a group of interdependent sub-subsystems, assemblies and/or components, required to create a...
Engine sub-modelDesignation for a grouping of engines with essentially identical design, especially with respect to the core...
Engine systemAs used in §§86.007-17, 86.007-30, 86.010-18, and 86.010-38 means the engine, fuel system, induction system...
Engine system configuration1. Subclassification of an engine-system combination on the basis of engine code, inertia weight class...
Engine testing procedureAll aspects of engine testing, including the equipment specifications, calibrations, calculations and other...
Engine type certificate familyGroup of engines (comprising one or more engine models, including submodels and derivative engines for...
Engine used in locomotive1. Either an engine placed in the locomotive to move other equipment, freight, or passenger traffic, or an...
Engine Warm-up Cycle1. Sufficient vehicle operation such that the coolant temperature has risen by at least 40 °F from engine...
Engine-based standardEmission standard expressed in units of grams of pollutant per kilowatt-hour that applies to the engine...
Engine-based testEmission test intended to measure emissions in units of grams of pollutant per kilowatt-hour, without regard...
Engine-displacement-system combinationEngine family-displacement-emission control system combination.
Engine/EquipmentEngine(s) and/or equipment depending on the context. Specifically these terms mean the following:(1)...
Engineer1. Applies the principles of science and mathematics to develop economical solutions to technical problems...
Engineered controlAn engineered control, such as barriers placed between a contaminated area and the rest of a site, is a...
Engineered controls, see Engineered control
Engineered designAn onsite or clustered wastewater system that is designed and certified by a licensed/certified designer to...
Engineered DNA componentDirectly modified gene complement of a living organism by such techniques as altering the DNA, substituting...
Engineered nanoparticleNanosized materials purposefully made. These are in contrast to incidental and naturally occurring nanosized...
Engineered structure damage modelRepresentation of processes that damage an engineered structure
Engineered veneerType of veneer that is created by dyeing and gluing together leaves of veneer in a mold to produce a block...
Engineered woodProducts made from lumber, veneers, strands of wood, or from other small wood and sometimes recycled plastic...
Engineered wood productProduct made with lumber, veneers, strands of wood, or from other small wood elements that are bound together...
EngineeringThe application of physical, mechanical, and mathematical principles for practical purposes, such as the...
Engineering analysis1. Summary of scientific and/or engineering principles and facts that support a conclusion made by a...
Engineering assessmentNot limited to, the following:(1) Previous test results provided the tests are representative of current...
Engineering control1. Engineering measures designed to minimize the potential for human exposure to contamination by either...
Engineering controls, see Engineering control
Engineering controls established - groundwater control1. This event signifies the establishment of engineering controls (ECs) as part of, or to augment, an interim...
Engineering Controls Established - Non-groundwater Control1. This event signifies the establishment of engineering controls (ECs) as part of, or to augment, an interim...
Engineering controls terminated - groundwater control1. Use this event code when the engineering control is no longer required to protect human health and the...
Engineering Controls Terminated - Non-groundwater Control1. Use this event code when the engineering control is no longer required to protect human health and the...
Engineering estimationFor purposes of subpart W, means an estimate of emissions based on engineering principles applied to measured...
Engineering Evaluation/Cost AnalysisStudy to identify the objectives of a removal action and to analyze the cost effectiveness and implement...
Engineering R&DActivities to research and develop engineering solutions, such as civil innovations or mechanical tools, for...
Engine-system combinationEngine family-exhaust emission control system combination.
EngorgementThe presence of an increased amount of blood in a body part or an organ leading to congestion or engorgement...
Enhanced aerobic bioremediationBioremediation that has been enhanced with carbon or other substance to facilitate the degradation of the...
Enhanced biological treatment processAerated, thoroughly mixed treatment unit(s) that contains biomass suspended in water followed by a clarifier...
Enhanced biological treatment systemAerated, thoroughly mixed treatment unit(s) that contains biomass suspended in water followed by a clarifier...
Enhanced coagulationAddition of sufficient coagulant for improved removal of disinfection byproduct precursors by conventional...
Enhanced Coagulation/Filtration TechnologyThe Disinfectant/Disinfection Byproduct (D/DBP) Rule requires the use of enhanced coagulation treatment for...
Enhanced fault detection technologyEnhanced fault detection technology enables higher precision and greater discrimination of fault location and...
Enhanced greenhouse effect1. The concept that the natural greenhouse effect has been enhanced by increased atmospheric concentrations...
Enhanced inspection and maintenanceAn improved automobile inspection and maintenance program--aimed at reducing automobile emissions---that...
Enhanced lime softeningLime softening is a process where hydrated lime or quicklime is added to raise pH and precipitate calcium. In...
Enhanced mineral oilPetroleum distillate which has been highly purified and is distinguished from diesel oil and conventional...
Enhanced mineral oil-based drilling fluid1. Continuous phase of the drilling fluid is enhanced mineral oil.
Enhanced nutrient removalWastewater treatment technology that improves upon the nutrient reductions achieved through biological...
Enhanced nutrient removal technologyWastewater treatment technology that improves upon the nutrient reductions achieved through biological...
Enhanced oil recovery1. Removal of some of the heavy oil left in an oil well after primary and secondary recovery. See primary oil...
Enhanced service and repair information1. Information which is specific for an original equipment manufacturer’s brand of tools and equipment. This...
Enhanced softeningImproved removal of disinfection byproduct precursors by precipitative softening.
Enhanced wetlandAn existing wetland that has been altered to improve a particular function, usually at the expense of other...
Enhanced-idleMode of engine idle operation where idle speed is elevated above warm idle speed as determined by the...
Enhancement1. In the context of restoration ecology, any improvement of a structural or functional attribute.
Enriched foodFoods to which nutrients were added in order to replace losses of the nutrient that occured during processing.
Enrichment1. The addition of nitrogen, phosphorus and carbon compounds or other nutrients into a lake or other waterway...
EnsilingThe process of creating silage via anaerobic fermentation.
Ensure safe drinking waterActivities to ensure the availability of safe drinking water.
Ensure safe use of pesticidesActivities that ensure the safe and beneficial use of pesticides, insecticides, rodenticides, and fungicides.
Ensuring environmental conservation of marine & land resourcesActivities to support the environmental conservation of marine and land resources through such activities as...
Enteric1. Of or within the gastrointestinal tract.
Enteric bacteriaBacteria which live in the intestines
Enteric fermentation1. Livestock, especially cattle, produce methane as part of their digestion. This process is called enteric...
Enteric nervous systemTwo ganglionated neural plexuses in the gut wall which form one of the three major divisions of the autonomic...
Enteric virusVirus which lives in the intestines
EnteritisInflammation of the intestine
Enterochromaffin cellA group of basal granular cells of the gut whose granules stain readily with silver and chromium salts. The...
Enterochromaffin-like cellIrregular-shaped argyrophilic cell which produces histamine, chromogranin A/pancreastatin, and an as yet...
Enterococcus bacteriaFound in the feces of humans and other warmblooded animals. Although some strains are ubiquitous and not...
Enteroendocrine cellA hormone-secreting cell present in the epithelium of the intestine.
Enterprise architecture1. Enterprise Architecture is an established process for describing the current state and defining the target...
Enterprise content managementThe technologies, tools, and methods used to capture, manage, store, preserve, and deliver content across an...
Enterprise content management systemECMS is a platform for managing EPA's information resources, including records, throughout their lifecycle...
Enterprise data catalogThe EDC enables EPA to continue to implement and maintain a comprehensive enterprise data inventory and...
Enterprise risk managementThe methods and processes used by an enterprise to manage risks to its mission and to establish the trust...
Enterprise servicesCommon or shared IT services that support core mission areas and business services. Enterprise services are...
EntireBeing whole, not convoluted or divided into distinct spatial parts. In EMAP, this property affects the...
EntisolsThe central concept of Entisols is that of soils that have little or no evidence of the development of...
Entity1. Property owners, property purchasers, developers, investors, municipalities, and other groups that may...
Entomopathogenic bacteriaBacteria which may be used as biopesticides because they kill insects
Entomopathogenic fungusFungus that infects and kills insects, and is therefore of interest for pest control purposes
Entomopathogenic nematodeA roundworm which kills insects
Entomopathogenic virusViruses that can infect and kill pests and insects. These viruses are used in agriculture as insecticides
EntrainTo trap bubbles in water either mechanically through turbulence or chemically through a reaction.
EntrainedParticulates or vapor transported along with flowing gas or liquid.
Entrainment1. When aquatic organisms, including eggs and larvae, are pulled from a water body into an industrial...
Entrapped mixed microbial cells processA process in which dilute wastewater is passed through a cellulose triacetate matrix containing microbial...
Enveloped virusA virus that has an outer wrapping or envelope. This envelope comes from the infected cell, or host, in a...
EnviromapperThe GIS based mapping software that can be used to visually select the stations to be included in a query.
Environment1. All the biological and non-biological factors that affect an organism's life.
Environment classificationClassification of spatial units, with similar biophysical characteristics, that are located on or near the...
Environment impact typeThe type of change to the environment, whether adverse or beneficial, wholly or partially resulting from an...
EnvironmentalDerived from the animal's environment, bedding, housing, etc.
Environmental accounting1. In the context of national income accounting, refers to natural resource accounting, which can entail...
Environmental activityChemical substances by their interactions with the environment
Environmental agentsConditions other than indoor air contaminants that cause stress, comfort, and/or health problems (e.g...
Environmental Appeals Board1. Board within the Agency described in § 1.25 of this title. The Administrator delegates authority to the...
Environmental Appeals Board clerkIndividual duly authorized to serve as Clerk of the Environmental Appeals Board.
Environmental aspect1. Element of an organization's activities, products, and services that can interact with the environment.
Environmental aspects, see Environmental aspect
Environmental assessment1. A preliminary, written, environmental analysis required by NEPA (see the Federal Law section) to determine...
Environmental audit1. An independent assessment (not conducted by EPA) of a facility's compliance policies, practices, and...
Environmental claim1. Any statement, assertion or visual display about the environmental aspects of an entity.
Environmental cleanup substanceSubstances of value in cleaning up a chemical discharge or spill into the environment
Environmental conditions1. The description of a physical medium (for example, air, water, soil, sediment) or a biological system...
Environmental contaminantHarmful or hazardous matter introduced into the environment.
Environmental contaminationIntroduction into water, air, and soil of microorganisms, chemicals, toxic substances, wastes, or wastewater...
Environmental controlTemperature and humidity control in poultry and animal production barns.
Environmental corrective measureIdentifying the cause of harm to the environment and the action to correct the problem.
Environmental cost accountingTerm used to refer to the addition of environmental cost information into existing cost accounting procedures...
Environmental credit tradingEnvironmental credit trading is a market-based approach to achieve pollution abatement goals set by...
Environmental data1. Information collected directly from measurements, produced from models, and compiled from other sources...
Environmental data operationWork performed to obtain, use, or report information pertaining to environmental processes and conditions.
Environmental data operationsWork performed to obtain, use, or report information pertaining to environmental processes and conditions.
Environmental data registryThe Environmental Data Registry (EDR), developed by the U.S. Environmental Protection Agency (EPA), is a...
Environmental dataset gatewayRegistry of environmental datasets. It provides a Web application to search for, discover, view, and access...
Environmental documentPreliminary environmental review memorandum, an initial environmental evaluation, or a comprehensive...
Environmental economics1. A subfield of economics that undertakes theoretical or empirical studies of the economic effects of...
Environmental educationEducational activities and training activities involving elementary, secondary, and postsecondary students...
Environmental education and trainingEducational activities and training activities involving elementary, secondary, and postsecondary students...
Environmental effect1. Action of a stressor on the environment
Environmental effect and impactAny change to the environment, whether adverse or beneficial, wholly or partially resulting from an...
Environmental engineeringThe branch of engineering relating to the environment, especially water and waste management.
Environmental equity1. Equal protection from environmental hazards for individuals, groups, or communities regardless of race...
Environmental exposureHuman exposure to pollutants originating from facility emissions. Threshold levels are not necessarily...
Environmental factorExtrinsic factor (geology, climate, insects, sanitation, health services, etc.) which affects the agent and...
Environmental factorsConditions other than indoor air contaminants that cause stress, comfort, and/or health problems (e.g...
Environmental fate1. The destiny of a chemical or biological pollutant after release into the environment.
Environmental fate dataData that characterize a pesticide's fate in the ecosystem, considering factors that foster its degradation...
Environmental fate modelIn the context of exposure assessment, any mathematical abstraction of a physical system used to predict the...
Environmental impactAny change to the environment, whether adverse or beneficial, wholly or partially resulting from an...
Environmental impact assessment1. The process of identifying and evaluating the consequences of one economic activity on the environment...
Environmental impact statement1. A document prepared by or for EPA which identifies and analyzes, in detail, environmental impacts of a...
Environmental impairment liability policiesInsurance policies introduced in the early 1990s designed to cover environmental liabilities. Due to high...
Environmental improvementLessening of pollution and bettering of the environment
Environmental indicatorA measurement, statistic or value that provides a proximate gauge or evidence of the effects of environmental...
Environmental indicators, see Environmental indicator
Environmental information1. Includes data and information that describe environmental processes or conditions which support EPA's...
Environmental information collection and assessment activitiesEnvironmental information collection and assessment activities represent any activities that involve...
Environmental information document1. A written analysis prepared by the applicant that provides sufficient information for the Responsible...
Environmental information exchange networkAn Internet and standards-based information network among EPA and its partners in states, tribes, and...
Environmental information operationsA collective term for work performed to collect, produce, evaluate, or use environmental information and the...
Environmental injury1. Measurable adverse change, either long- or short-term, in the chemical or physical quality or the...
Environmental justice1. The fair treatment of people of all races, cultures, incomes, and educational levels with respect to the...
Environmental justice indexThe EJ index is a number that combines environmental and demographic information for a place. There is an EJ...
Environmental Laboratory Advisory BoardA Federal Advisory Committee, with members appointed by EPA and composed of a balance of non-state...
Environmental laboratory measurementA figure, extent, or amount obtained by measuring used in detection, quantitation, and calibration by...
Environmental liabilityAn umbrella term used to refer to different types of environmental costs including costs for remediating...
Environmental lienA charge, security, or encumbrance on a property's title to secure payment of cost or debt arising from...
Environmental loadingsReleases of pollutants to the environment, such as atmospheric and waterborne emissions and solid wastes.
Environmental managementEnvironmental Management includes all functions required to monitor the environment and weather, determine...
Environmental management system1. Organizational structure, responsibilities, practices, procedures, processes, and resources for...
Environmental management systemsA framework that helps a company achieve its environmental goals through consistent control of its...
Environmental measurementA subgroup of Environmental Information that includes or produces values derived from tools, instruments...
Environmental media1. Materials such as soil, surface water, ground water, and sediment.
Environmental media and transport mechanismEnvironmental media include water, air, soil, and biota (plants and animals). Transport mechanisms move...
Environmental media contaminantA substance that is either present in an environment where it does not belong or is present at levels that...
Environmental medium1. A major environmental category that surrounds or contacts humans, animals, plants, and other organisms...
Environmental monitoringThe process of measuring or collecting environmental data.
Environmental monitoring & forecastingEnvironmental Monitoring and Forecasting involves the observation and prediction of environmental conditions...
Environmental Monitoring and Assessment Program1. A USEPA program to monitor and assess the ecological health of major ecosystems, including surface waters...
Environmental monitoring for public access and community trackingJoint EPA, NOAA, and USGS program to provide timely and effective communication of environmental data and...
Environmental monitoring systemA set of processes, practices, and technologies that facilitate periodic or continuous monitoring of the...
Environmental noiseIntensity, duration, and the character of sounds from all sources.
Environmental objective1. Overall environmental goal, arising from the environmental policy, that an organization sets itself to...

1,770 of 29,894 terms in Environment terminology (MLC-0121). Request the full dataset.