Environment terminology · MLC-0121

Environment terms: I (1,291)

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Inflation RateThe annual rate of increase in costs or sales prices in percent.
Inflorescence1. The flower cluster of a plant.
InflowEntry of extraneous rain water into a sewer system from sources other than infiltration, such as basement...
Inflow WaterWater other than wastewater that enters a sewer system (including sewer service connections) from sources...
Influent1. (IN-flu-ent) Water or other liquid-raw or partially flowing INTO a reservoir, basin, treatment process or...
Influent FlowFlow into an anaerobic digester or other manure stabilization process.
"Influential" Scientific or Statistical Information1. Any information that a person expects is likely to have an important effect on the development of domestic...
Informal Administrative ActionAny communication from EPA or a state agency that notifies the handler of a problem.
INFORMAL AMENDMENTProposed project change which does not substantially alter the objective or scope of the project.
Information1. Facts or data communicated or received. See also RECORDED INFORMATION.
Information & Technology ManagementInformation and Technology Management involves the coordination of information technology resources and...
Information BiasSystematic difference in the collection of data regarding the participants in a study (e.g., about exposures...
Information Collection for ResearchProcess of gathering data and other facts for a specific purpose.
Information Collection Request1. A set of documents that describe reporting, record keeping, survey, or other information collection...
INFORMATION CONTROL/DOCUMENT CONTROLInformation control is the safeguarding of EPA information to protect confidentiality and ensure integrity of...
INFORMATION COPYA nonrecord copy sent to individuals or offices interested in, but not acting on, a matter. See also COPY (1).
Information DirectiveAn Agency-wide directive issued by the Chief Information Officer (CIO) that governs information technology...
Information Dissemination ProductAny book, paper, map, machine-readable material, audio/visual production, or other documentary material...
Information ExtractionThe parsing of an article and the recording of data related to the article and its underlying research.
Information FileIn the Superfund program, a file that contains accurate, up-to-date documents on a Superfund site. The file...
Information Infrastructure ManagementInformation Infrastructure Management involves the management and stewardship of a type of information by the...
Information Management1. Information Management involves the coordination of information collection, storage, dissemination, and...
Information or objects of independent originAs defined in § 3.3 of CROMERR, data or items that originate from a disinterested individual or are forensic...
Information Quality GuidelinesDocuments that provide criteria for ensuring the quality, utility, and transparency of data and information...
Information Repository1. An information repository is a location in a public building that is convenient for local residents, such...
Information Repository EstablishedThe establishment of a location in the community where the administrative record and other documents...
Information RequestInformation requests are defined as an enforceable, written request for information to a regulated entity or...
INFORMATION RESOURCES MANAGEMENTThe planning, budgeting, organizing, directing, training, and controlling associated with the creation...
Information ScienceInformation science is an interdisciplinary science primarily concerned with the analysis, collection...
Information SuperhighwayA term describing a network of integrated telecommunications systems connecting people around the world to...
Information System1. An organized collection, storage, and presentation system of data and other knowledge for decision making...
INFORMATION SYSTEM ARCHITECTUREThe organizational structure of an information system, including necessary application systems, computer...
INFORMATION SYSTEM MANAGERThe program official responsible for overseeing the creation and use of records in an information system...
Information Systems Vulnerability InformationInformation that specifies existing vulnerabilities identified on government systems. Some examples include...
Information Systems Vulnerability Information - BasicInformation that specifies existing vulnerabilities identified on government systems.
Information Technology1. Any equipment or interconnected system or subsystem of equipment, that is used in the automatic...
INFORMATION TECHNOLOGY MANAGERThe ADP official responsible for overseeing the purchase and technical operation of an information system...
Informational DeviceInformational tools that provide information or notification that residual or capped contamination may remain...
Informational DevicesInformational tools that provide information or notification that residual or capped contamination may remain...
INFORMATIONAL VALUEThe usefulness of records in documenting the persons, places, things, or matters dealt with by an agency, in...
Information/education (I/E) activitiesPublic outreach.
Informed Consent1. A written agreement by the program participants to voluntarily participate in an evaluation or study after...
INFOTERRASee http://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=9100RIFD.txt. INFOTERRA is an international environmental...
Infrared MonitorAn infrared monitor is a device used to monitor the heat signature of an object, as well as to sample air. It...
Infrared Radiation1. Infrared radiation is the heat energy emitted from a material. The term infrared refers to energy in the...
Infrared SpectroscopyMethod of chemical analysis using spectroscopic techniques in the infrared portion of the spectrum (700 nm -...
Infrastructure1. The physical structures and facilities that support the functioning of a community, including roads...
Infrastructure as ServiceThe capability provided to the consumer is to deploy onto the cloud infrastructure consumer-created or...
Infrastructure ConstructionBuilding of physical structures that allow society to function such as roads, water pipelines, sewers...
Infrastructure DecontaiminationInactivation or reduction of infrastructure contaminants by physical, chemical or other methods to meet a...
Infrastructure DesignPlan and implementation of society's infrastructure for the public use.
Infrastructure TopicsTopics in RAINE relating to basic physical and organizational structures and facilities needed by communities...
Ingestion1. Type of exposure through the mouth.
ingestion exposure1. Exposure to a chemical by swallowing it (such as eating or drinking).
Ingestion RateThe rate at which an organism consumes food, water, or other materials (e.g., soil, sediment). Ingestion rate...
Ingredient1. Component of an aerosol coating product.
Ingredient in Commercial Food PreparationSurface water used for wholesale food preparation falls into this category (e.g., a manufacturer that...
Inground TankDevice meeting the definition of “tank” in § 260.10 whereby a portion of the tank wall is situated to any...
Inguinal CanalThe oblique anatomic tunnel in the anterior lower abdomen. In males it conveys the spermatic cord structures...
InhalableParticles small enough to be inhaled, but large enough so that they are not quickly exhaled.
Inhalable ParticlesAll dust capable of entering the human respiratory tract.
Inhalation1. Type of exposure through the lungs.
Inhalation dosimetryProcess of measuring or estimating inhaled dose.
inhalation exposure1. Exposure to a chemical by breathing it in.
Inhalation Reference ConcentrationAn estimate (with uncertainty spanning perhaps an order of magnitude) of a continuous inhalation exposure of...
Inhalation unit risk1. The upper-bound excess lifetime cancer risk estimated to result from continuous exposure to an agent at a...
Inhalation Unit Risk EstimateThe upper-bound excess lifetime cancer risk estimated to result from continuous exposure (usually lifetime)...
Inhaled doseThe amount of an inhaled substance that is available for interaction with metabolic processes or biologically...
InherencyConsists of physico-chemical properties (e.g., size, solubility, reactivity) and is broadly defined as...
Inherent Chemical PropertyConsists of physico-chemical properties (e.g., size, solubility, reactivity) and is broadly defined as...
Inherent Process EquipmentEquipment that is necessary for the proper or safe functioning of the process, or material recovery equipment...
Inherent RiskThe risk that an activity would pose if no controls or other mitigating factors were in place (the gross risk...
Inherent Soil QualityThat aspect of soil quality relating to a soil’s natural composition and properties as influenced by the...
Inherently Governmental FunctionAs a matter of policy, a function that is so intimately related to the public interest as to mandate...
Inherently Low-Emission VehicleAny LDV or LDT conforming to the applicable Inherently Low-Emission Vehicle standard, or any HDV with an...
Inherently Safer DesignRisk management measures that minimize the use of regulated substances, substitute less hazardous substances...
Inherently Safer TechnologyRisk management measures that minimize the use of regulated substances, substitute less hazardous substances...
Inherently Waste-LikeFor purposes of defining a material as a solid waste under RCRA Subtitle C, a material, such as...
Inherently Waste-Like MaterialThe following materials are solid wastes when they are recycled in any manner:(1) Hazardous Waste Nos. F020...
Inhibition of AmyloidogenesisInhibition of Amyloidogenesis is a process that prevents the formation or growth of amyloid structures.
Inhibition of Cancer Cell GrowthIntercellular, cellular, and subcellular mechanisms that inhibit or block the induction, promotion...
Inhibition of Cell ProliferationInhibition of Cell Proliferation involves intercellular, cellular, and subcellular mechanisms that inhibit or...
Inhibition Positive Control1. A sample used to verify that interfering constituents from an environmental matrix carried over from the...
Inhibitor1. An agent that slows or interferes with a chemical reaction; a substance that reduces the activity of...
Initial Calibration Value1. Concentration measured during the initial calibration at the beginning of each day required in §...
Initial Certification Statement1. Written submission to the appropriate permitting authority (either the local control authority (the POTW)...
Initial Compliance Period1. The first full three-year compliance period which begins at least 18 months after promulgation.
Initial Compliance Period (Water)The first full three-year compliance period which begins at least 18 months after promulgation.
Initial Comprehensive Performance TestComprehensive performance test that is used as the basis for initially demonstrating compliance with the...
Initial CrusherAny crusher into which nonmetallic minerals can be fed without prior crushing in the plant.
Initial Data RecipientEntity (EPA or the state, tribe, or territory authorized by EPA to implement the NPDES program) that is the...
Initial Decision1. Decision of the Administrative Law Judge supported by findings of fact and conclusions regarding all...
Initial Demonstration of CapabilityPerformed to demonstrate the ability to achieve a low background, to demonstrate the ability to achieve the...
Initial Demonstration of PerformanceUsed to characterize instrument performance (determination of linear dynamic ranges and analysis of quality...
Initial Environmental EvaluationStudy of the reasonably foreseeable potential effects of a proposed activity on the Antarctic environment...
Initial Equipment Startup1. First time equipment is put into operation. Initial startup does not include operation solely for testing...
Initial FillFirst introduction of liquid into a storage vessel that is either newly constructed or has not been in liquid...
Initial Flowback StagePeriod during a well completion operation which begins at the onset of flowback and ends at the separation...
Initial HEX-BCH ReportMust include, to the extent that it is known to or reasonably ascertainable by the person reporting, the...
Initial Inventory PlacementOriginal product has completed all of its manufacturing processes and is ready for sale by the manufacturer...
Initial Mixing ZoneThe region immediately downstream of an outfall where effluent dilution processes occur. Because of the...
Initial Precision and Recovery1. Four aliquots of a reference matrix spiked with all the analytes of interest and labeled compounds and...
Initial Producing GORProducing standard cubic meters of gas per liter at the time that the reservoir pressure is above the bubble...
Initial Remedial Measure1. The immediate steps taken to mitigate a hazardous situation at a National Priorities List (NPL) site...
Initial Response1. The immediate response of an organism, population, community, or ecosystem to direct exposure to a...
Initial Site AssessmentInformation is gathered on site conditions, releases, potential releases and exposure pathways to determine...
Initial Startup1. First time a new or reconstructed source begins production. For the purposes of this subpart, initial...
Initial Startup Date1. First calendar day that a new, reconstructed or significantly modified source processes any listed oilseed.
Initial Verification Test1. For the purposes of § 82.156(i), those leak tests that are conducted as soon as practicable after the...
Initialize a Parameter's Starting Value (advanced mode option)The user can choose to use the default value, specify a value or initialize the value of each parameter. Each...
Initially Designated Status1. First designation that becomes effective for an area for the 8-hour NAAQS and does not include a...
Initiate On-Site ConstructionBegin any of the following: installation of the collection and control system to be used to comply with the...
InitiationThe first stage of carcinogenesis.
Injectate1. The fluids injected into an underground injection well.
Injection1. Introduction of the analytical sample into the instrument excitation system for the purpose of measuring...
Injection intervalThat part of the injection zone in which the well is screened, or in which the waste is otherwise directly...
Injection LoggingWell logging carried out during the process of fluid injection.
Injection MoldingInjection molding is one of the more common methods used to mold thermoplastics; however, this method can...
Injection Site ReactionAn intense reaction (usually immunologic) developing at the site of injection.
Injection Well1. A well into which fluids are injected for purposes such as waste disposal, improving the recovery of crude...
Injection WellsA method for final disposal of solid waste on land. The refuse is spread and compacted and a cover of soil...
Injection Zone1. A geological formation, group of formations, or part of a formation that receives fluids through a well.
Injunctive ReliefInjunctive Relief requires a regulated entity to perform, or refrain from performing, some designated action...
Injury or IllnessA situation where an employee is physically harmed or becomes sick while at work.
InkAny mixture of ink, coating solids, organic solvents including dilution solvent, and water that is applied to...
Ink Jet MarkingInk and makeup fluid used for date code and other identification markings on a can for the marking on a can...
Ink SacA diverticulum of the rectum of most cephalopods, where an 'inky" melanin solution is stored. The ink is...
Ink SolidSolids content of an ink as determined by Method 24, ink manufacturer's formulation data, or plant blending...
In-Kind ResourceResource of a similar structural and functional type to the impacted resource.
In-Kind ServicesServices provided by EPA contractors and consultants on specific parts of the project for the recipient. The...
Inland AreaArea shoreward of the boundary lines defined in 46 CFR part 7, except in the Gulf of Mexico. In the Gulf of...
Inland FloodingOccurs when moderate precipitation accumulates over several days, intense precipitation falls over a short...
Inland PortTerm sometimes used to describe a port that is not located on a coast (e.g. Great Lakes or Mississippi River...
Inland SeaA large, water body almost completely surrounded by land. Salinities range from fresh through marine. The...
Inland WatersFor the purposes of classifying the size of discharges, means those waters of the United States in the inland...
Inland waters of the United Statesthose waters of the United States lying inside the baseline from which the territorial sea is measured and...
Inland Zone1. The environment inland of the coastal zone excluding the Great Lakes and specified ports and harbors on...
Inland/Enclosed SeaA large, water body almost completely surrounded by land. Salinities range from fresh through marine. The...
inlet1. A small, narrow opening, recess, indentation, or other entrance into a coastline or shore of a lake or...
inlet wellA well through which a fluid (liquid or gas) is allowed to enter the subsurface under natural pressure.
In-lieu feeA type of mitigation that can be used to compensate for unavoidable impacts to wetlands. In this approach to...
In-Lieu Fee Program1. Program involving the restoration, establishment, enhancement, and/or preservation of aquatic resources...
In-Lieu Fee Program InstrumentLegal document for the establishment, operation, and use of an in-lieu fee program.
In-Line Cleaning MachineSolvent cleaning machine that uses an automated parts handling system, typically a conveyor, to automatically...
In-Line Coal MillCoal mill using kiln exhaust gases in their process. A coal mill with a heat source other than the kiln or a...
In-Line Filtration1. The addition of chemical coagulants directly to the filter inlet pipe. The chemicals are mixed by the...
In-Line FluxerDevice exterior to a furnace, located in a transfer line from a furnace, used to refine (flux) molten...
In-Line Kiln Raw Mill1. Hazardous waste burning cement kiln design whereby kiln gas is ducted through the raw material mill for...
In-Line RepairOperation performed and coating(s) applied to correct damage or imperfections in the topcoat on parts that...
in-line rotameterA flow measurement device for liquids and gases that uses a flow tube and specialized float. The float device...
In-Line Storage1. The use of a portion of the volume of a storm sewer or drain, combined sewer and/or interceptor sewer...
Innate Releasing MechanismIn ethology or animal behavior, an innate system within an animal that responds to a stimulus in the...
inner barrelInternal sample barrel seated inside of a cased DP systems.
Inner EarThe essential part of the hearing organ consists of two labyrinthine compartments: the bony labyrinthine and...
Inner LinerContinuous layer of material placed inside a tank or container which protects the construction materials of...
Innovation AnalysisFramework for answering a series of questions throughout the life cycle of an innovation-from pilot testing...
Innovative EnforcementInnovative enforcement approaches (e.g., data analytics and targeting) to achieve more widespread compliance.
Innovative Practices for Pest ControlActivities to support innovative methods of pest control, such as through integrated pest management.
Innovative ResearchResearch Projects/Activities/Tasks/Studies that move beyond incremental solutions to scientific or technical...
Innovative Technologies1. New or inventive methods to treat effectively hazardous waste and reduce risks to human health and the...
innovative technology1. New or inventive methods to treat hazardous wastes, conserve energy, or prevent pollution.
Innovative Treatment Technologies1. Remedies that have been tested, selected, or used for treating hazardous waste or contaminated materials...
inoculateTo implant microorganisms onto or into a culture medium.
Inoculum1. Bacteria or fungi injected into compost to start biological action.
Inorganic1. Not capable of sustaining life. Often refers to dirt or soil.
Inorganic AnalysisChemical analysis of inorganic (i.e. not organic) compounds.
Inorganic AnionInorganic negatively charged atoms, radicals or groups of atoms which travel to the anode or positive pole...
Inorganic Carbon CompoundsInorganic compounds that contain carbon as an integral part of the molecule but are not derived from...
Inorganic Chemicals1. Chemical substances of mineral origin, not of basically carbon structure.
Inorganic ComplexationThe attachment of a transition-metal ion to another molecule or ion by means of a coordinate covalent bond.
Inorganic compoundCombination of two or more elements, neither of which is carbon. See organic compound.
Inorganic Compounds1. Chemical compounds that do not contain carbon, usually associated with life processes; for example, metals...
Inorganic ContaminantMineral-based compounds such as metals, nitrates, and asbestos. These contaminants are naturally-occurring in...
inorganic contaminants1. Mineral-based compounds such as metals, nitrates, and asbestos. These contaminants are naturally-occurring...
Inorganic Groundwater ContaminationGroundwater contamination by inorganic chemicals
Inorganic Hazardous Air Pollutant1. Any HAP that is not organic.
Inorganic Metal-Bearing WasteOne for which EPA has established treatment standards for metal hazardous constituents, and which does not...
inorganic nitrogenThe element nitrogen in combination with other mineral elements and not derived from plant or animal sources.
Inorganic Nitrogen CompoundsInorganic compounds that contain nitrogen as an integral part of the molecule.
Inorganic Sodium SaltsSalts consisting of a sodium cation and an inorganic anion.
Inorganic Soil ContaminationIntroduction into soil of ...inorganic chemicals...in a concentration that makes the medium unfit for its...
Inorganic SulfatesInorganic salts of sulfuric acid. ]NLM Medical Subject Headings (MeSH)]
Inorganic Sulfur CompoundsInorganic or organic compounds that contain sulfur as an integral part of the molecule.
Inorganic Wastewater Treatment ChemicalInorganic chemicals that are commonly used in wastewater treatment systems to aid in the removal of...
Inorganic Zinc Specialty CoatingCoating that contains 960 grams per liter (8 pounds per gallon) or more elemental zinc incorporated into an...
Inpatient HospitalizationFormal admission to the inpatient service of a hospital or clinic for care.[85 FR 22250; The Navigable Waters...
In-Person InterviewingFace-to-face interviewing. The interviewer meets personally with the respondent to conduct the interview.
In-phaseThat part of a periodic signal that has zero phase shift with a reference signal. See also quadrature.
In-Plant Monitoring PointLocation within a plant, where an individual process effluent can be exclusively monitored before it is...
In-Process Control TechnologyConservation of chemicals and water throughout the production operations to reduce the amount of wastewater...
Inprocess RecyclingRecycling operation in which recovered material is used by a unit operation within the same affected source...
Inprocess WastewaterAny water which, during manufacturing or processing, comes into direct contact with vinyl chloride or...
Input1. Organizational units, people, dollars, and other resources actually devoted to the particular program or...
Input HorsepowerThe total power used in operating a pump and motor. Input HP = (Brake HP)(100%)Motor Efficiency, %)
INPUT RECORDSNonelectronic documents designed and used to create, update, or modify records in an electronic medium; or...
Input-Output Analysis1. An economic tool used to measure the impacts of an existing, proposed, or anticipated business operation...
Inputs and outputsMaterial or energy that crosses a unit process boundary. Example C Materials may include raw materials...
Insect1. Member of the largest group of arthropods
Insect AggregationWhen insects concentrate in larger numbers than usually found and for a specific purpose, such as feeding...
Insect BehaviorActions and reactions of insects to their environment
Insect BioluminescenceThe production of light by certain living organisms, including fireflies and phytoplankton, by the conversion...
Insect CommunicationAn action or condition on the part of an insect that alters the behavior of another insect or organism
Insect DiseasesIllnesses contracted by insects
Insect OvipositorThe tube in an insect's body used for egg-laying.
Insect PestInsects that damage products or are pests to other organisms.
Insect PhysiologyHow insects' bodies function
Insect PollinationPollination by insects
Insect Prothoracic GlandEndocrine glands in the insect thorax regulating their molts
Insect ReproductionProcess of mating and producing new generations of insects
Insect Resistant PlantPlants with the ability to withstand, deter or repel insects and thereby prevent them from feeding on the...
Insect VectorAn organism such as an insect that transmits a pathogen.
Insect Virus DiseasesIllness caused by viruses infecting insect hosts
InsectaThe class Insecta, in the phylum ARTHROPODA, whose members are characterized by division into three parts...
Insecticide1. Chemical for the control of insects
Insecticide FoggerAny insecticide product designed to release all or most of its content as a fog or mist into indoor areas...
Insectivore1. Insect-eating animal.
InsectivorousAn animal that feeds on insects.
Insect-Resistant CropPlants with the ability to withstand, deter or repel insects and thereby prevent them from feeding on the...
Insensible water lossEvaporative water losses that occur during breastfeeding. Corrections are made to account for insensible...
Inserted GeneA gene introduced into the DNA of a recombinant organism which is not present at the same position in the DNA...
Inside SprayCoating sprayed on the interior of a can body to provide a protective film between the can and its contents.
Inside Spray Coating OperationSystem on each beverage can surface coating line used to apply a coating to the interior of a two-piece...
Inside Telephone WiringFor a residence, the wiring usually starts where the line enters the house. It’s called the demarcation line...
Insignificant ActivitiesPart 70 allows states to establish a list of "insignificant activities." The items on this list, which is...
In-Silico ResearchResearch performed on a computer or via computer simulation.
In-Situ Chemical OxidationThe introduction of a chemical oxidant into the subsurface for the purpose of transforming groundwater or...
In-Situ FlushingIntroduction of large volumes of water, at times supplemented with cleaning compounds, into soil, waste, or...
In-Situ Fossil Fuel Recovery WellsClass V wells that are used to recover lignite, coal, tar sands, and oil shale. The wells inject water, air...
In-Situ Leach MethodProcesses involving the purposeful introduction of suitable leaching solutions into a uranium ore body to...
In-Situ LeachingThe process (presently the most common method used in the U.S.) involves drilling wells deep underground and...
In-Situ Monitoring SystemThese systems monitor contaminants in their original place; unmoved or unexcavated; remaining at the site or...
In-Situ OxidationTechnology that oxidizes contaminants dissolved in ground water, converting them into insoluble compounds.
In-situ RecoveryA process to recover uranium in which fluids are injected into ground water to mobilize the uranium in...
In-Situ Sampling SystemNonextractive samplers or in-line samplers. [40 CFR 60.481 (CFR 2013)][40 CFR 60.481a (CFR 2013)] [40 CFR...
In-Situ Solution MiningThe solution mining process includes: water pumping, injection of brine into underground mine workings...
In-Situ StrippingTreatment system that removes or "strips" volatile organic compounds from contaminated ground or surface...
In-Situ Suspension ProcessManufacturing process in which styrene, blowing agent, and other raw materials are added together within a...
In-situ testsToxicity tests that involve placing plants or animals in locations that might be affected by site...
In-Situ VitrificationTechnology that treats contaminated soil in place at extremely high temperatures, at or more than 3000...
Insolation1. Incoming solar radiation. Solar heating; sunshine.
Inspect and Qualify1. To determine that a previously used component or system meets all applicable criteria listed for the...
Inspection1. An activity undertaken in a school building, or a public or commercial building, to determine the presence...
Inspection and Maintenance1. Activities to ensure that vehicles' emission controls work properly.
Inspection and Maintenance ProgramInspection and maintenance programs for in-use vehicles required under the 1990 CAA Amendments and defined by...
Inspection Criteria1. Pass and fail numbers associated with a particular sampling plan. [40 CFR 89.502 (CFR 2013)] [40 CFR...
Inspections & AuditingInspections and Auditing involves the methodical examination and review of regulated activities to ensure...
Inspector General Protected Information - BasicIdentity of employees, or any individual using the OIG (Office of the Inspector General) hotline website, who...
Installation InspectorPerson who, by reason of his knowledge of the physical sciences and the principles of engineering, acquired...
Installed Marine Fuel LineFuel line designed for delivering fuel to a Marine SI engine that does not meet the definition of portable...
Installed Marine Fuel TankFuel tank designed for delivering fuel to a Marine SI engine that does not meet the definition of portable...
Installing Production TubingA well is usually produced through tubing inserted down the production casing. Oil and gas is produced more...
Instant Photographic Film ArticleSelf-developing photographic film article designed so that all the chemical substances contained in the...
Instantaneous maximumA concentration that is “never to be exceeded” or averaged over a short period of time (e.g., one hour) to...
Instantaneous Maximum Limit1. The maximum allowable concentration of a pollutant determined from the analysis of any discrete or...
Instantaneous Minimum LimitThe minimum allowable concentration or other measure of a pollutant determined from the analysis of any...
Instantaneous Water HeaterAlso called a "tankless" or "point-of-use" water heater. The water is heated at the point of use as it is...
InstarA discreet, in-between molt stage, during the metamorphosis of an arthropod from larva to adult.
InstinctAn unlearned, genetically coded behavior pattern that is internally motivated and characteristic of the...
Institution1. A significant and persistent element (as a practice or relationship) in the life of a culture that centers...
Institutional Biosafety CommitteeCommittees described in the NIH Guidelines in section IV.B.2
Institutional BoilerA boiler used in institutional establishments such as, but not limited to, medical centers, nursing homes...
Institutional Control1. Non-engineered instruments, such as administrative and/or legal controls, that help to minimize the...
Institutional Controls1. Non-engineering measures intended to affect human activities in such a way as to prevent or reduce...
Institutional Controls Established - Enforcement and Permit Tools1. This event signifies the establishment of institutional controls (ICs) as part of, or to augment, an...
Institutional Controls Established - Governmental Control1. This event signifies the establishment of institutional controls (ICs) as part of, or to augment, an...
Institutional Controls Established - Information Device1. This event signifies the establishment of institutional controls (ICs) as part of, or to augment, an...
Institutional Controls Established - Proprietary Control1. This event signifies the establishment of institutional controls (ICs) as part of, or to augment, an...
Institutional Controls Terminated - Enforcement & Permit Tools1. Use this event code when the institutional control is no longer required to protect human health and the...
Institutional Controls Terminated - Governmental Control1. Use this event code when the institutional control is no longer required to protect human health and the...
Institutional Controls Terminated - Informational Device1. Use this event code when the institutional control is no longer required to protect human health and the...
Institutional Controls Terminated - Proprietary Control1. Use this event code when the institutional control is no longer required to protect human health and the...
Institutional Living QuartersSpace provided by a business or organization for long-term housing of individuals whose reason for shared...
Institutional ProductConsumer product that is designed for use in the maintenance or operation of an establishment that...
Institutional ProjectA project that includes structures designed for use by retail, wholesale, office, hotel, or other...
Institutional Review Board1. Institutional review board established in accord with and for the purposes expressed in this policy.
Institutional Review Board ApprovalDetermination of the IRB that the research has been reviewed and may be conducted at an institution within...
Institutional Solid WasteSolid wastes generated by educational, health care, correctional, and other institutional facilities. [40 CFR...
Institutional Use1. Any application of a pesticide in or around any property or facility that functions to provide a service...
Institutional Waste1. Refers to waste generated at institutions, such as schools, libraries, hospitals, and prisons. Examples...
Institutionalized PopulationPeople under formally authorized, supervised care or custody in institutions at the time of enumeration...
In-stream fish habitatAreas fish need for concealment and feeding, such as large wood within the stream banks, boulders, undercut...
Instream FlowRiver and stream waters that maintain stream quality, aquatic life, and recreational opportunities.
In-Stream HabitatThe area, including the water column and substrate, located within a stream or river, excluding the...
In-Stream Hydrokinetic EnergyGenerate selectricity directly from the flow of water in rivers, inland waterways, irrigation canals and...
Instream Use1. Water use taking place within a stream channel; e.g., hydro-electric power generation, navigation, water...
Instream UsesWater uses that can be carried out without removing the water from its source, as in navigation and...
Instructional Television Fixed ServiceA service provided by one or more fixed microwave stations operated by an educational organization and used...
Instrument1. A tool used to collect and organize information.
Instrument Blank1. A clean sample (e.g., distilled water) processed through the instrumental steps of the measurement...
Instrument Detection Limit1. The minimum quantity of analyte of the concentration equivalent that identifies an analyte signal equal to...
instrument errorA type of non-sampling error caused by the survey instrument (or questionnaire) itself, such as unclear...
Instrument NoisePrecision of 30 seconds of updated recorded values from a measurement instrument as it quantifies a zero or...
Instrument PerformanceVarious metrics reporting how the laboratory instruments are functioning.
Instrument Performance Check1. A quality control sample, which may be a blank or fortified with analyte that is used to verify instrument...
Instrument Response TimeTime interval from a step change in pollutant concentration at the input to the measurement system to the...
Instrument ZeroTo adjust an instrument so it gives a zero response to a zero calibration standard, such as purified nitrogen...
Instrumental Neutron Activation AnalysisMethod of analysis in which the material of interest is made radioactive through neutron capture, and the...
Instrumental OutcomeA measure or measures of phenomena directly related to program goals and objectives.
Instrumentality of the StateAn instrumentality is an organization created by or pursuant to state statute and operated for public...
Instrumentation BiasBias introduced in a study by a change in the measurement instrument during the course of the study.
Instrumentation System1. Group of equipment components used to condition and convey a sample of the process fluid to analyzers and...
Insufficient data to determine human exposure control statusDue to uncertainty regarding exposures, one cannot draw conclusions as to whether human exposures are...
Insufficient data to determine migration control statusDue to uncertainty regarding contaminated groundwater migration, one cannot draw conclusions as to whether...
Insufficient InfoThere is not enough available data and/or information to make a determination of water quality.
Insulating concrete formsForms for poured concrete walls that remain part of the wall assembly, adding to the insulation of a home...
Insulating Gas1. Fluorinated GHG or fluorinated GHG mixture, including but not limited to SF6 and PFCs, that is used as an...
InsulationAny material or substance that provides a high resistance to the flow of heat from one surface to another...
Insulation BoardPanel manufactured from interfelted ligno-cellulosic fibers consolidated to a density of less than 0.5 g/cu...
Insulation CoveringMaterial that is applied to foam insulation to protect the insulation from mechanical or environmental damage.
InsulinA 51-amino acid pancreatic hormone that plays a major role in the regulation of glucose metabolism, directly...
Insulin SensitizerUpon administration increases the sensitivity of target organs to insulin. This agent may lower blood glucose...
Insulin-Secreting Cell(A cell which produces insulin) a hormone produced by the pancreas to regulate blood sugar. Because of this...
InsurabilityAcceptability of an applicant for insurance by an insurance company.
InsuranceA policy to cover the TSDF financial assurance requirement.
Insurance ArcheologyThe reconstruction of an organization's insurance policy history (e.g., CGL policies) for the purpose of...
Insurance PolicyLegal document issued to the insured setting out the terms of the contract of insurance in order to transfer...
InsuredThe person or persons (a.k.a., the policyholder(s)) whose risk of financial loss from a peril covered by the...
InsurerThe insurance company offering insurance coverage.
Intake1. The process by which a substance crosses the outer boundary of an organism without passing an absorption...
Intake doseThe amount of an agent that enters a target by crossing an exposure surface that does not act as an...
Intake PipeIntakes are pipes designed (and placed) to draw lake or seawater into a man-made pond or other facility.
Intake rateRate of inhalation, ingestion, and dermal contact depending on the route of exposure. For ingestion, the...
Intake Valve DepositDeposits formed on the intake valve(s) during operation of a gasoline engine, as evaluated by weight.[40 CFR...
INTANGIBLE PROPERTY AND DEBT INSTRUMENTSMeans (but is not limited to) trademarks, copyrights, patents and patent applications and such property as...
Integral IntermediateIntermediate for which 50 percent or more of the annual production is used in on-site production of any...
Integral VistaView perceived from within the mandatory Class I Federal area of a specific landmark or panorama located...
Integrases1. Integrase is an enzyme that catalyzing the integration of viral DNA into the host genome. These enzymes...
Integrated AssessmentField data collected for characterizing the magnitude and severity of problems at a site.
Integrated Assessment ModelingAn analytical approach that brings together knowledge from a variety of disciplinary sources to describe the...
Integrated Compliance Information SystemSupports the information needs of the national enforcement and compliance program. ICIS integrates data that...
Integrated Compliance Information System-National Pollutant Discharge Elimination SystemThe first phase of the Integrated Compliance Information Systems (ICIS) development is to support the...
Integrated DesignA design approach where all the members of the building stakeholder community, technical planning, design...
Integrated Environmental Decision Makingan approach for evaluating complex environmental problems holistically by integrating resources and analyses...
Integrated Environmental ModelingModeling consisting of four related parts: the applications, the science, the technology, and the community.
Integrated Equipment ManufacturerEquipment manufacturer that also manufactures the engines for its equipment. Equipment manufacturers that...
Integrated Error Correction Process1. Process by which the public can notify EPA of data errors.
Integrated Exposure Assessment1. A summation over time, in all media, of the magnitude of exposure to a toxic chemical.
Integrated Exposure Uptake Biokinetic ModelSee http://www.epa.gov/superfund/health/contaminants/lead/products.htm#ieubk. Integrated Exposure Uptake...
Integrated FacilityFacility that performs electroplating as only one of several operations necessary for manufacture of a...
Integrated Financial Management System1. EPA's official financial system. Performs funds control from commitments through payment; updates all...
Integrated Gasification Combined Cycle Electric Utility Steam Generating Unit1. Electric utility combined cycle gas turbine that is designed to burn fuels containing 50 percent (by heat...
Integrated Gasification Combined Cycle Facility1. Combined cycle facility that is designed to burn fuels containing 50 percent (by heat input) or more...
Integrated Gasification-Combined Cycle PlantCoal, water, and oxygen are fed to gasifier, which produces syngas. This medium-Btu gas is cleaned...
Integrated Grant Management SystemDesigned to streamline and automate the grant and interagency agreement award and management processes from...
Integrated MeasurementIntegrated measurement involves collection of samples over a selected, or integrated, time period in the...
Integrated ModelingIncludes a set of interdependent science-based components (models, data, and assessment methods) that...
Integrated Pest Management1. Integrated Pest Management (IPM) means the careful consideration of all available pest control techniques...
Integrated Project TeamA group of individuals comprised of partner and EPA staff, support contractors, and technology vendors...
Integrated Refueling Emission Control SystemSystem where vapors resulting from refueling are stored in a common vapor storage unit(s) with other...
Integrated Removal Assessment and Combined Preliminary Assessment/Site InspectionAn action integrating combined Preliminary Assessment/Site Inspection (PA/SI) and removal assessment...
Integrated Removal Assessment and Expanded Site InspectionAn action integrating Site Inspection (SI) and removal assessment activities to reduce the overall time and...
Integrated Removal Assessment and Expanded Site Inspection/Remedial Investigation1. An action integrating Expanded Site Inspection/Remedial Investigation (ESI/RI) and removal assessment...
Integrated Removal Assessment and Hazard Ranking System PackageAn action integrating Hazardous Ranking System (HRS) and removal assessment activities to reduce the overall...
Integrated Removal Assessment and Preliminary AssessmentAn action integrating Preliminary Assessment (PA) and Removal Assessment activities to reduce the overall...
Integrated Removal Assessment and Site InspectionAn action integrating Site Inspection (SI) and removal assessment activities to reduce the overall time and...
Integrated Reporting (IR) CategoryThis report covers the general condition of a state's waters, identifies waters that are not meeting water...
Integrated Resource PlanningAn open and participatory planning process emphasizing least-cost principles and a balanced consideration of...
Integrated Risk Information System1. IRIS is an electronic database that contains EPA's latest descriptive and quantitative regulatory...
Integrated Science AssessmentAn assessment that provides relevant information and analysis across scientific discipline boundaries.
Integrated Science AssessmentsReports that represent concise evaluations and syntheses of the most policy-relevant science for reviewing...
Integrated Services Digital NetworkSwitched network providing end-to-end digital connection for simultaneous transmission of voice and/or data...
Integrated System ProcessProcess for producing a pesticide product that:(1) Contains any active ingredient derived from a source that...
Integrated ThinkingApproach to planning and implementing Research Projects/Activities/Tasks/Studies that draws from systems...
Integrated Transdisciplinary ResearchInvestigation that brings people together from different disciplines, perspectives, and experiences to define...
Integrated Waste Management1. The complementary use of a variety of practices to handle municipal solid waste safely and effectively...
Integrating deviceA device that measures a single average concentration value over a period of time. Also called a time...
Integration1. Bringing together of two or more segments of beef productions and processing under one centrally organized...
Integration TestingThe computational and transfer interfaces between modules need to allow an accurate transfer of information...
IntegratorA device or meter that continuously measures and calculates (adds) total flows in gallons, or million cubic...
Integrin BindingA process that involves the binding of an integrin to one of its ligands, including fibronectin, vitronectin...
Integrity1. One of three main components of quality in EPA's Information Quality Guidelines. Integrity refers to the...
Integumentary System1. The outer covering of the body composed of the SKIN and the skin appendages, which are the HAIR, the...
Intelligent SootblowerAutomated system that use process measurements to monitor the heat transfer performance and strategically...
Intended Use of Data Collection: Decision-makingMaking a choice between alternative conditions and usually occurs during regulatory activities, emergency...
Intended Use of Data Collection: EstimationThe evaluation of the magnitude of an environmental parameter or characteristic. Estimation usually supports...
Intensive vs. Extensive GardensIntensive gardens have thicker soil depths and generally require more management and artificial irrigation...
Intention MovementAn incomplete behavior pattern that provides information about the activity a particular animal is about to...
Intentional ContaminationDeliberate introduction into water, air, and soil of microorganisms, chemicals, toxic substances, wastes, or...
InteractionThe cause physically interacts with the affected entity in a way that induces a change (the effect).
Interactive Video Data ServiceA communication system, operating over a short distance, that allows nearly instantaneous two-way responses...
Interagency Agreement1. Four types of Interagency Agreements (IAs) exist as follows: Federal Interagency Agreement; Policy...
Interagency Agreement NegotiationNegotiations between EPA and a federal agency and/or the state for conducting response actions under CERCLA...
Interagency Agreement NegotiationsNegotiations between EPA and a federal agency and/or the state for conducting response actions under CERCLA...
Interagency Agreement Shared Service CenterA shared service center operated by the Office of Grants and Debarment (OGD) to provide cradle-to-grave...
Interagency Review TeamInteragency group of federal, tribal, state, and/or local regulatory and resource agency representatives that...
Interannual VariabilityVariation from year to year in average wind speed, distribution, and patterns.
InterburdenRock strata between two coal seams to be mined.
Intercept TermThe estimated value at zero dose or the dose corresponding to a zero effect.
InterceptionIn hydrology, the accumulation of precipitation on vegetation and other above-ground surfaces and its...
InterceptorA sewer designed to receive dry-weather flow from a number of transverse combined sewer trunks and additional...
Interceptor Sewer1. Sewer which is designed for one or more of the following purposes: (i) To intercept wastewater from a...
Interceptor SewersLarge sewer lines that, in a combined system, control the flow of sewage to the treatment plant. In a storm...
Interconnected ContainersContainers that are connected via pipes, hoses, or other conveyance (either permanent or temporary) to allow...
Interconnection Standards--Clean Distributed GenerationStandard interconnection rules for distributed generation (DG), including renewable energy and combined heat...
Interconnection Standards--Net MeteringNet metering provisions can be considered a subset of interconnection standards for small-scale projects...
intercroppingThe growing of two or more species of crops simultaneously, as in alternate rows in the same field or single...
InterdisciplinaryInteraction between different branches of knowledge.
interdunal areasAreas such as pannes and ponds that are protected from wind and waves and lie behind the foredunes.
Interest RateA rate which is charged or paid for the use of money. Note: Do not include a percentage sign.
Interested PartiesIndividuals and organizations potentially acted upon or affected by chemicals, radiation, or microbes in the...
Interested Party1. Individual or group concerned with or affected by the environmental performance of an organization.
Interested Person1. The Administrator, any EPA employee, any party to the proceeding, any potentially responsible party...
Interface1. The common boundary layer between two substances such as water and a solid (metal); or between two fluids...
interfacial tension1. The strength of the film separating two immiscible fluids (e.g., oil and water) measured in dynes (force)...
Interference1. A discharge that, alone or in conjunction with a discharge or discharges from other sources, both (1)...
Interference CompetitionCompetition in which one species prevents the other from having access to a limiting resource (Ehrlich and...
Interference Discharge1. Discharge which, alone or in conjunction with a discharge or discharges from other sources, both:(1)...
interferentsInterferents are anything that interfere with obtaining an accurate result for an assay (e.g., a PCR assay)...
Interflow1. Lateral movement of water in the upper layer of soil.
Intergeneric MicroorganismMicroorganism that is formed by the deliberate combination of genetic material originally isolated from...
intergovernmentalBetween the EPA and international, other federal, state, tribal, territorial, area-wide, regional or local...
INTERGOVERNMENTAL AGREEMENTA written agreement between a Federal agency and a State or local government under which the State or local...
Intergovernmental AgreementsAgreements between a Federal agency and state or local Government under which the state or local government...
Intergovernmental Panel on Climate ChangeThe IPCC was established jointly by the United Nations Environment Programme and the World Meteorological...
intergranularBetween the individual grains in a rock or sediment.
Interim Authorization1. A temporary mechanism that is intended to promote continued state participation in hazardous waste...
Interim CoverPlacement of material over waste in a landfill for a period of time prior to the disposal of additional waste...
Interim Decision for No Further ActionThe event by which the State or EPA makes an initial determination that no further action for a facility or...
Interim DeliverablesA series of Standard Tables, Worksheets, and Supporting Information, identified in the Workplan for each...
Interim Lead Exposure ControlSet of measures designed to temporarily reduce human exposure or likely exposure to lead-based paint hazards...
Interim MeasuresUnder RCRA Subtitle C corrective action, short-term actions to control ongoing risks while site...
Interim (Permit) StatusPeriod during which treatment, storage and disposal facilities coming under RCRA in 1980 are temporarily...
Interim Status Facilities1. Treatment, storage, and disposal facilities (TSDFs) that were already in operation when RCRA standards...
Inter-individual variabilityVariations between individuals in terms of human characteristics such as age or body weight, or behaviors...
Interior Clear Wood SealerLow viscosity coating formulated and recommended for sealing and preparing porous wood by penetrating the...
Interior CoatingArchitectural coating formulated and recommended for use in conditions not exposed to natural weathering.
Interior forestMature forest that is separate from other land uses and provides interior forest dwelling species with the...
Interior Use ComponentIntended for use or storage inside a building or recreational vehicle, or constructed in such a way that it...
Interior Volume IndexDefined in §600.315-08 of this chapter.
Interior Wastewater SourceWastewater that is generated from cleaning or rinsing the interior of pesticide formulating, packaging or...
Interior WellAny well or similar collection component located inside the perimeter of the landfill waste. A perimeter well...
Interior Window SillPortion of the horizontal window ledge that protrudes into the interior of the room.
Interior/Exterior SurfaceDesignates the veneer or skin of objects.
Inter-laboratory Procedure Study1. A study where a centralized study design coordinator sends identical samples to multiple different...
Inter-laboratory Test Comparison1. Organization, performance and evaluation of tests on the same or similar items or materials by two or more...
InterlockAn electrical switch, usually magnetically operated. Used to interrupt all (local) power to a panel or device...
Intermediary1. Any individual or entity, other than an original equipment manufacturer, which provides service or...
Intermediary Metabolic Process1. All the reactions in an organism concerned with storing and generating metabolic energy and with the...
INTERMEDIATEDuplicate film used to make more copies.
Intermediate Bulk ContainerCompletely enclosed storage vessel used to hold liquid, solid, or gaseous commodities or cargos which are in...
Intermediate CoverPlacement of material over waste in a landfill for a period of time prior to the disposal of additional waste...
Intermediate Duration ExposureContact with a substance that occurs for more than 14 days and less than a year (compare with acute exposure...
Intermediate ecosystem serviceAttributes of ecological structure or process that influence the quantity and/or quality of ecosystem...
Intermediate FacilityAny facility that stores hazardous secondary materials for more than 10 days, other than a hazardous...
Intermediate HostIn a parasite's life cycle, it is a host organism in which a parasite undergoes a stage of asexual...
Intermediate Load Combustion TurbineStationary combustion turbine that supplies more than 20 percent but less than or equal to 40 percent of its...
Intermediate Monitoring ChangeModification to federally required monitoring involving “proven technology” (generally accepted by the...
Intermediate OutcomeResults or outcomes of program activities that must occur prior to the final outcome in order to produce the...
Intermediate Premanufacture NoticeAny PMN submitted to EPA for a chemical substance which is an intermediate (as “intermediate” is defined in §...
Intermediate ProcessProcess that occurs between appearance of a stressor in an ecosystem and induction of the effect of concern...
Intermediate ProcessesProcesses that occur between appearance of a stressor in an ecosystem and induction of the effect of concern...
Intermediate Release CoatingThin coating applied beneath topcoats to assist in removing the topcoat in depainting operations and...
Intermediate Speed1. Peak torque speed if peak torque speed occurs from 60 to 75 percent of rated speed. If peak torque speed...
Intermediate (Substance)1. Organic compound that is manufactured in a process and that is further processed or modified in one or...
Intermediate Temperature Cold Testing1. Testing done pursuant to the driving cycle and testing conditions contained in 40 CFR part 86, subpart C...
Intermediate Test Method ChangeWithin-method modification to a federally enforceable test method involving “proven technology” (generally...
Intermediate Test SpeedMeaning given in 40 CFR 1065.1001.[40 CFR 1039.801 (CFR 2013)]
Intermediate-Speed EquipmentNonhandheld equipment in which the installed engine is intended for operation at speeds substantially below...
Intermittent Bleed Pneumatic DeviceAutomated flow control devices powered by pressurized natural gas and used for automatically maintaining a...
Intermittent DischargesFacilities may have one or more outfalls that do not continuously discharge wastewater for one or more...
Intermittent Electric GeneratorAn electric generating plant with output controlled by the natural variability of the energy resource rather...
Intermittent EmissionGas streams containing VOC that are generated at intervals during process line operation and includes both...
Intermittent Hospital/Medical/Infectious Waste IncineratorHMIWI that is designed to allow waste charging, but not ash removal, during combustion.[40 CFR 60.51c (CFR...
Intermittent OperationIndustrial user does not have a continuous operation.
Intermittent stream1. A stream which flows part of the time, usually after rainstorm, during wet weather, or for only part of...
Intermittent Vapor Processing System1. Vapor processing system that employs an intermediate vapor holder to accumulate total organic compounds...
Intermittent Vent Natural Gas-Driven Process ControllerProcess controller that is not designed to have a continuous bleed rate but is instead designed to only...
Intermittent Water BodyWater bodies that do not contain water throughout the year under normal conditions.
Intermittent Waters1. Water body (e.g., stream or wetland) that contains water for part of each year, due to precipitation...
Intermittently-Controllable Work StationWork station associated with a dryer with provisions for the dryer exhaust to be delivered to or diverted...
Intermittently-Controlled Work StationWork station associated with a dryer with provisions for the dryer exhaust to be delivered to or diverted...
IntermodalUsed to indicate movements of cargo containers interchangeably between transport modes - i.e. motor, water...
Intermodal Tank ContainerCompletely enclosed storage vessel used to hold liquid, solid, or gaseous commodities or cargos which come in...
Intermodal TransportationUsed to indicate movements of cargo containers interchangeably between transport modes - i.e. motor, water...
Intermolecular ForceWeak forces between molecules
Intermunicipal AgencyUnder the Clean Air Act, an agency of two or more municipalities located in the same State or in different...
Internal AuditA systematic, independent, and documented process for obtaining audit evidence and evaluating it objectively...
Internal Cell StructureBacterial cell internal structure
Internal CombustionCombustion of a fuel that occurs with an oxidizer (usually air) in a combustion chamber. In an internal...
Internal Combustion Engine1. A device in which air enters a combustion chamber, is mixed with fuel, compressed in the chamber, and...
Internal Combustion EquipmentMay include gasoline and diesel industrial engines, natural gas-fired reciprocating engines, and gas turbines.
Internal Combustion PlantA plant in which the prime mover is an internal combustion engine. An internal combustion engine has one or...
Internal CommunicationsCommunications that are intended for all members of the Region 7 work force including EPA employees (both...
Internal ConsistencyThe extent to which all items in a scale or test measure the same concept.
Internal dose1. In exposure assessment, the amount of a substance penetrating the absorption barriers (e.g. skin, lung...
Internal DrainageAn area in which surface water cannot reach the ocean. Any water that falls into an area with internal...
Internal EvaluationEvaluation conducted by a staff member or unit from within the organization being studied.
Internal Exposure1. Exposure to contaminants within the body of an organism.
Internal Floating Roof1. Cover that rests or floats on the liquid surface (but not necessarily in complete contact with it) inside...
Internal Floating Roof Type A FailureAny time, as determined during visual inspection through roof hatches, in which the internal floating roof is...
Internal Floating Roof Type B FailureAny time, as determined during internal inspections, the internal floating roof's primary seal has holes...
Internal FrictionFriction within a fluid (water) due to cohesive forces.
Internal Kelvin WaveSubsurface gravity wave with a rotational component propagated along a density interface against a vertical...
Internal Monomer Unit1. Monomer unit that is covalently bonded to at least two other molecules. Internal monomer units of polymer...
Internal Operations SupportInternal Operations Support includes legal services to support the agency's internal affairs, such as review...
Internal Pipeline MonitorIf a corrosive gas is being transported in the pipeline, monitors are required to check the effectiveness of...
Internal Positive Control1. The internal positive controls of known concentrations consists of a simple DNA template material for the...
Internal ResourceAn agency's or organization's resources, including staff skills and experience and any information already...
Internal Risk Management & MitigationInternal Risk Management and Mitigation involves all activities relating to the processes of analyzing...
Internal ScrapAll aluminum scrap regardless of the level of contamination which originates from castings or extrusions...

1,291 of 30,736 terms in Environment terminology (MLC-0121). Request the full dataset.