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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

Absorption barrier

Acceptable daily Intake

Acclimatization

Acid deposition

Acid mine drainage

Acid neutralizing capacity

Activated carbon

Activated sludge

Activated sludge process

Active ingredient

Additive effect

Add-on control device

Administered dose

Administrative order

Administrative record

Advanced treatment

Advanced wastewater treatment

Adverse effects data

Aerobic treatment

Affected public

Agricultural pollution

Agricultural waste

Ahera designated person

Air changes per hour

Air contaminant

Air exchange rate

Air handling unit

Air permeability

Air pollution control device

Air pollution episode

Air quality control region

Air quality criteria

Air quality standards

Airborne particulates

Airborne release

Alternative compliance

Alternative energy

Alternative fuels

Alternative transportation

Ambient air quality standards

Ambient temperature

Amprometric titration

Anaerobic decomposition

Aquatic ecosystem

Aqueous solubility

Architectural coatings

Area of influence

Artesian aquifer

Artificial recharge

Asbestos abatement

A-scale sound level

Assessment endpoint

Assimilative capacity

Attainment area

Availability session

Available chlorine

B

Background level

Backyard composting

Band application

Barrier coating

Basal application

Bench-scale tests

Benefit analysis

Benefit-cost analysis

Best available technology

Best management practice

Best management practices

Beta particle activity

Bioaugmentation

Biochemical oxygen demand

Bioconcentration

Biological contaminants

Biological control

Biological diversity

Biological integrity

Biological magnification

Biological measurement

Biological medium

Biological oxidation

Biological oxygen demand

Biological treatment

Biologically effective dose

Biosphere Reserve

Biotic community

Biotransformation

Blood lead levels

Bottom land hardwoods

Breakpoint chlorination

British thermal unit

Broadcast application

Building cooling load

Building envelope

Building related illness

Buy-back center

C

Capillary action

Capillary fringe

Capillary water

Capture efficiency

Carbon absorber

Carbon adsorption

Carbon dioxide emission

Carbon monoxide

Carbon tetrachloride

Carboxyhemoglobin

Carrying capacity

Cas registration number

Catalytic converter

Categorical exclusion

Cathodic protection

Central collection point

Centrifugal collector

Characterization of exposure

Check-valve tubing pump

Chemical compound

Chemical element

Chemical oxygen demand

Chemical treatment

Chilling effect

Chlorinated hydrocarbon insecticide

Chlorinated hydrocarbons

Chlorinated solvent

Chlorination byproducts

Chlorine-contact chamber

Chlorofluorocarbons

Chronic exposure

Chronic toxicity

Class i substance

Class ii substance

Clean coal technology

Climax community

Closed-loop recycling

Coal cleaning technology

Coal gasification

Coastal pelagic

Code of federal regulations

Coefficient of haze

Cold temperature co

Coliform organism

Collection site

Combined sewers

Combustion chamber

Combustion product

Commercial waste

Commingled recyclables

Common sense initiative

Communities of color

Community relations

Community right-to-know

Community water system

Compact fluorescent lamp

Compact fluorescents

Complete treatment

Compliance coal

Compliance coating

Compliance cycle

Compliance monitoring

Composite sample

Composting facilities

Compressed natural gas

Condensate return system

Conditional registration

Cone of depression

Cone of influence

Cone penterometer testing

Confined aquifer

Confining layer

Confluent growth

Congressional Record

Conservation easement

Consolidated rock

Construction ban

Consumptive use

Consumptive water use

Contact pesticide

Contingency plan

Continuous discharge

Continuous sample

Contour farming

Contour plowing

Contour strip farming

Control technique guidelines

Conventional filtration

Conventional pollutants

Conventional site assessment

Conventional systems

Conventional tilling

Conveyance loss

Cooperative agreement

Corrective action

Cost-effective alternative

Criteria pollutants

Critical habitat

Crop consumptive use

Cross contamination

Cross-connection

Cryptosporidium

Cubic feet per minute

Cultural eutrophication

Cultures and stocks

Cumulative exposure

Curbside collection

Cyclone collector

D

Data quality objectives

Decontamination

Deep well injection

Deep-well injection

Delegated state

Demand Side Management

Demineralization

Denitrification

Depletion curve

Depressurization

Dermal absorption

Dermal exposure

Dermal toxicity

Desertification

Design capacity

Designated pollutant

Designated uses

Destination facility

Destratification

Destroyed medical waste

Destruction facility

Desulfurization

Detectable leak rate

Detection criterion

Detection limit

Development effects

Diatomaceous earth

Direct discharger

Direct filtration

Displacement savings

Disposal facilities

Dissolved oxygen

Dissolved solids

Dna hybridization

Dose equivalent

Dose response curve

Dose-response assessment

Dose-response relationship

Dot reportable quantity

Double hulled tankers

Downstream processors

Drive point profiler

Dual-phase extraction

Dystrophic lakes

E

Ecological entity

Ecological exposure

Ecological health

Ecological impact

Ecological indicator

Ecological integrity

Ecological processes

Ecological risk

Ecological risk assessment

Ecosystem structure

Effluent guidelines

Effluent limitation

Effluent standard

Electric vehicles

Electrodialysis

Electrostatic precipitator

Emergency episode

Emergency response values

Emergency suspension

Emission factor

Emission inventory

Emission standard

Emissions trading

Endangered species

Endangerment assessment

Endocrine disruptors

End-of-the-pipe

End-use product

Energy conservation

Energy efficiency

Energy recovery

Enforcement decision document

Environmental assessment

Environmental audit

Environmental equity

Environmental exposure

Environmental fate

Environmental fate data

Environmental hazard

Environmental impact statement

Environmental indicator

Environmental issues

Environmental lien

Environmental medium

Environmental problem

Environmental protection

Environmental Protection Agency

Environmental site assessment

Environmental sustainability

Environmental technology

Environmental tobacco smoke

Environmental values

Environmentalism

Environmentalist

Environmentally friendly

Equivalent method

Ethylene dibromide

Eutrophic lakes

Evaporation ponds

Evapotranspiration

Executive session

Exempted aquifer

Experimental use permit

Explosive limits

Exposure assessment

Exposure concentration

Exposure indicator

Exposure pathway

Extraction procedure

Extraction well

F

Factory farming

Facultative bacteria

Family planning

Feasibility study

Fecal coliform bacteria

Federal implementation plan

Fissile material

Fixed-location monitoring

Flowing artesian well

Flue gas desulfurization

Fluidized bed incinerator

Food processing waste

Friable asbestos

Fuel economy standard

Fuel efficiency

Fugitive emissions

Functional equivalent

Furrow irrigation

G

Gas chromatograph

Gasoline volatility

Gastroenteritis

General reporting facility

Generally recognized as safe

Genetic engineering

Geographic information system

Geophysical log

Giardia lamblia

Glass containers

Global warming potential

Grassed waterway

Greenhouse effect

Greenhouse gases

Ground-penetrating radar

Groundwater basin

Ground-water discharge

Groundwater divide

Growth overfishing

H

Hazard assessment

Hazard communication standard

Hazard evaluation

Hazard identification

Hazard quotient

Hazardous air pollutants

Hazardous chemical

Hazardous ranking system

Hazardous substance

Hazardous waste

Hazardous waste landfill

Hazardous waste minimization

Hazards analysis

Hazards identification

Health advisory level

Health assessment

Heat island effect

Heterotrophic microorganisms

Heterotrophic organisms

High end exposure

High intensity discharge

High-density polyethylene

Highest dose tested

High-level radioactive waste

High-line jumpers

Highly migratory fish

Hollow stem auger drilling

Homeowner water system

Hood capture efficiency

Household hazardous waste

Household hazards

Household waste

Human exposure evaluation

Human health risk

Hydraulic conductivity

Hydraulic gradient

Hydrofluorocarbons

Hydrogen peroxide

Hydrogen sulfide

Hydrogeological cycle

Hydrologic cycle

Hydrological System

Hypersensitivity diseases

I

Imminent hazard

Imminent threat

Impermeable layer

Incident command system

Incineration at sea

Incompatible waste

Indemnification

Indirect source

Indoor air pollution

Industrial emissions

Industrial process waste

Industrial source reduction

Industrial waste

Industrialized countries

Inert ingredient

Inertial separator

Infectious agent

Infectious waste

Infiltration gallery

Infiltration rate

Information file

Inhalable particles

Initial compliance period

In-line filtration

Innovative technologies

Inorganic chemicals

In-situ flushing

In-situ oxidation

In-situ stripping

In-situ vitrification

Inspection and maintenance

Institutional waste

Integrated management

Integrated pest management

Integrated waste management

Interceptor sewers

Interfacial tension

Interstate commerce clause

Interstate waters

Interstitial monitoring

Intrastate product

Ionizing radiation

Irradiated food

Irreversible effect

Irrigation efficiency

Irrigation return flow

Isoconcentration

J

Joint and several liability

K

Kinetic rate coefficient

L

Land application

Land disposal restrictions

Landscape characterization

Landscape ecology

Langelier index

Large quantity generator

Large water system

Laser induced fluorescence

Laundering weir

Leachate collection system

Lead service line

Least-cost planning

Lethal concentration

Level of concern

Life cycle assessment

Life cycle of a product

Lifetime average daily dose

Lifetime exposure

Lifting station

Light pollution

Light-emitting diode

Limestone scrubbing

Limit of detection

Limited degradation

Limiting factor

Lipid solubility

Local education agency

Low density polyethylene

Low nox burners

Low-emission vehicles

Lower detection limit

Lower explosive limit

Lowest acceptable daily dose

Low-impact camping

Low-level radioactive waste

M

Macroinvertebrates

Macroscopic organisms

Major modification

Major stationary sources

Majority leader

Management plan

Managerial controls

Mandatory recycling

Manifest system

Manual separation

Manufacturers formulation

Manufacturing use product

Marbled murrelet

Margin of exposure

Margin of safety

Marine pollution

Marine sanitation device

Mass spectrometer

Material category

Material safety data sheet

Materials recovery facility

Maximum contaminant level

Maximum exposure range

Maximum residue level

Maximum tolerated dose

Measure of exposure

Mechanical aeration

Mechanical separation

Mechanical turbulence

Medical surveillance

Method detection limit

Methyl orange alkalinity

Microbial growth

Microbial pesticide

Microenvironmental method

Microenvironments

Micrograms per liter

Million-gallons per day

Minority leader

Miscellaneous acm

Missed detection

Mixed municipal waste

Modified source

Moisture content

Molecular weight

Molten salt reactor

Monitoring well

Monitoring wells

Monoclonal antibodies

Montreal protocol

Most probable number

Multi-media approach

Multiple chemical sensitivity

Multistage remote sensing

Municipal discharge

Municipal sewage

Municipal sludge

Municipal solid waste

Municipal waste

Municipal-waste combustor

N

National ambient air

National emissions

National estuary program

National municipal plan

National oil and

National pollutant

National priorities list

National response center

National response team

National secondary

Natural environment

Natural resources

Nature Conservancy

Nature conservation

Navigable waters

New source review

Nitrilotriacetic acid

Nitrogen dioxide

Nitrogen fixation

Nitrogen oxides

Nitrogenous wastes

No further remedial

Noise pollution

Non-aqueous phase liquid

Non-attainment area

Non-community water system

Non-compliance coal

Non-contact cooling water

Non-conventional pollutant

Non-degradation

Non-ferrous metals

Non-methane hydrocarbon

Non-methane organic

Non-methane organic gases

Nonpoint source

Non-point source

Non-point sources

Non-road emissions

No-observed-effect-level

Notice of deficiency

Notice of intent to

Notice of intent to cancel

Notice of intent to deny

Notice of intent to suspend

Nuclear power plant

Nuclear reactor

Nuclear reactors and

Nutrient pollution

O

Obligate aerobes

Off-site facility

Old growth forests

Old-growth forest

Olfactory fatigue

Oligotrophic lakes

Omnibus spending bill

On-scene coordinator

Operating conditions

Operation and maintenance

Operator certification

Organic chemicals

Organic chemicals/compounds

Organically grown

Organophosphates

Original ahera inspection

Other solid waste

Outdoor air supply

Over-development

Oxygenated fuels

Ozone depletion

P

Packed bed scrubber

Packed tower aeration

Palatable water

Particulate loading

Particulate matter

Particulate pollution

Partition coefficient

Parts per billion

Passive smoking

Pay-as-you-throw

Perched aquifer

Percolating water

Performance data

Performance standards

Permeable layer

Permissible dose

Persistent pesticides

Personal air samples

Personal protective equipment

Pest control operator

Pesticide regulation notice

Pesticide tolerance

Pharmacokinetics

Phenolphthalein alkalinity

Phosphogypsum piles

Phosphorus plants

Photochemical oxidants

Photochemical smog

Phytoremediation

Picocuries per liter

Picocuries per liter pci

Piezometric surface

Plasma-arc reactor

Plate tower scrubber

Point source pollution

Point-of-use treatment device

Pollutant pathways

Pollutant standard index

Polluted runoff

Pollution prevention

Polychlorinated biphenyls

Polyelectrolytes

Polyvinyl chloride

Population at risk

Population growth

Portal-of-entry effect

Post consumer waste

Post-consumer materials

Post-consumer recycling

Potentially responsible party

Potentiometric surface

Precautionary principle

Pre-harvest interval

Preliminary assessment

Prescribed burn

Pressure sewers

Prevalent level samples

Prevalent levels

Primary standards

Primary waste treatment

Prior appropriation

Probability of detection

Process variable

Process verification

Process wastewater

Proportionate mortality ratio

Public comment period

Public transportation

Public water system

Pumping station

Q

Qualitative use assessment

Quality assurance

Quality control

R

Radio frequency radiation

Radioactive decay

Radioactive substances

Radioactive waste

Radius of influence

Radon daughters

Radon decay products

Raw agricultural commodity

Real-time monitoring

Reasonable further progress

Receiving waters

Reclaimed wastewater

Recombinant bacteria

Recombinant dna

Reconstructed source

Reconstruction of dose

Record of decision

Reentry interval

Reformulated gasoline

Refueling emissions

Refuse reclamation

Regional response team

Registration standards

Regulated medical waste

Relative permeability

Relative risk assessment

Remedial action

Remedial design

Remedial investigation

Remedial project manager

Remedial response

Renewable energy

Renewable resource

Repeat compliance period

Reportable quantity

Representative sample

Reserve capacity

Residential use

Residential waste

Residual saturation

Resource recovery

Response action

Responsiveness summary

Restriction enzymes

Reverse osmosis

Reversible effect

Ribonucleic acid

Riparian habitat

Riparian rights

Risk assessment

Risk characterization

Risk management

Risk-based targeting

Route of exposure

S

Salt water intrusion

Salvage logging

Sampling frequency

Sanitary landfill

Sanitary sewers

Sanitary survey

Saturated thickness

Saturation zone

Science advisory board

Screening risk assessment

Secondary effect

Secondary materials

Secondary standards

Secondary treatment

Secondhand smoke

Secure chemical landfill

Sedimentation tanks

Selective pesticide

Semi-confined aquifer

Service connector

Service line sample

Settleable solids

Short circuiting

Short-circuiting

Sick building syndrome

Significant deterioration

Significant non-compliance

Significant violations

Single-breath canister

Site assessment program

Site inspection

Site safety plan

Slow sand filtration

Sludge digester

Small quantity generator

Soft detergents

Soil adsorption field

Soil conditioner

Soil erodibility

Sole source aquifer

Solid waste disposal

Solid waste management

Source reduction

Source separation

Source water protection

Source-water protection area

Species extinction

Specific conductance

Spray tower scrubber

Stabilization ponds

Stage ii controls

Standard sample

Start of a response action

State implementation plans

State management plan

Static water level

Stationary source

Structural deformation

Submerged aquatic vegetation

Sulphur dioxide

Superchlorination

Supercritical water

Supplemental registration

Supplier of water

Surface impoundment

Surface-water treatment rule

Surfacing material

Surveillance system

Suspect material

Suspended solids

Suspension culture

Sustainable agriculture

Sustainable communities

Sustainable development

Sustainable yield

Synthetic organic chemicals

Systemic pesticide

T

Tailpipe standards

Technical assistance grant

Technology-based limitations

Technology-based standards

Temporary wetland

Tertiary treatment

Therapeutic index

Thermal pollution

Thermal stratification

Thermal system insulation

Thermal treatment

Threatened species

Threshold level

Threshold limit value

Threshold planning quantity

Time-weighted average

Tolerance petition

Total dissolved phosphorous

Total dissolved solids

Total petroleum hydrocarbons

Total suspended particles

Total suspended solids

Toxic chemical release form

Toxic concentration

Toxic emissions

Toxic pollutants

Toxic release inventory

Toxic substance

Toxic substances

Toxicity assessment

Toxicity testing

Toxicological profile

Transboundary pollutants

Transfer station

Transient water system

Transmission lines

Transportation planning

Trash-to-energy plan

Treatability studies

Treated wastewater

Treatment plant

Trichloroethane

Trichloroethylene

Trickle irrigation

Trickling filter

Turtle excluder device

U

Ultra clean coal

Ultraviolet rays

Uncertainty factor

Unconfined aquifer

Unconfined aquifers

Underground aquifer

Underground injection control

Underground injection wells

Underground storage tank

Unreasonable risk

Unsaturated zone

Upper detection limit

Uranium mill tailings piles

V

Vapor capture system

Vapor dispersion

Vegetative controls

Vehicle miles travelled

Venturi scrubbers

Volatile liquids

Volatile organic compound

Volatile solids

Volume reduction

Volumetric tank test

Vulnerability analysis

W

Waste characterization

Waste collection

Waste generation

Waste load allocation

Waste management

Waste minimization

Waste reduction

Waste treatment lagoon

Waste treatment plant

Waste treatment stream

Waste-heat recovery

Waste-to-energy facility

Wastewater infrastructure

Wastewater treatment

Water chemistry

Water pollution

Water purification plant

Water quality criteria

Water quality indicator

Water quality indicators

Water quality standard

Water quality standards

Water quality testing

Water solubility

Water storage pond

Water supply system

Water treatment plants

Waterborne contaminants

Waterborne disease outbreak

Water-soluble packaging

Water-source heat pump

Well monitoring

Wellhead protection area

Wettable powder

Wilderness area

Wildlife refuge

Wildlife refuges

Wood treatment facility

Wood-burning-stove pollution

Working level month

World Conservation Union

World Wildlife Fund

X

Y

Z

Zone of influence

Zone of saturation

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