Environment Topics

Environment

Below you will find a complete index of our covered "Environment" topics.

• 7Q10
• A-Scale Sound Level
• Abandoned Well
• Abatement
• Abatement Debris
• Absorbed Dose
• Absorption
• Absorption Barrier
• Accident Site
• Acclimatization
• Acid
• Acid Aerosol
• Acid Deposition
• Acid Mine Drainage
• Acid Neutralizing Capacity
• Acid Rain
• Acidic
• Act
• Action Levels
• Activated Carbon
• Activated Sludge
• Activator
• Active Ingredient
• Activity Plans
• Acute Effect
• Acute Exposure
• Acute Toxicity
• Adaptation
• Add-on Control Device
• Adequately Wet
• Adjournment
• Administered Dose
• Administrative Order
• Administrative Order On Consent
• Administrative Procedures Act
• Administrative Record
• Adsorption
• Adulterants
• Adulterated
• Advanced Treatment
• Advanced Wastewater Treatment
• Adverse Effects Data
• Advisory
• Aerated Lagoon
• Aeration
• Aeration Tank
• Aerobic
• Aerobic Treatment
• Aerosol
• Affected Landfill
• Affected Public
• Afterburner
• Age Tank
• Agent
• Agent Orange
• Agricultural Pollution
• Agricultural Waste
• Agroecosystem
• AHERA Designated Person (ADP)
• Air Binding
• Air Changes Per Hour (ACH)
• Air Cleaning
• Air Contaminant
• Air Curtain
• Air Exchange Rate
• Air Gap
• Air Handling Unit
• Air Mass
• Air Monitoring
• Air Padding
• Air Permeability
• Air Plenum
• Air Pollutant
• Air Pollution
• Air Pollution Control Device
• Air Pollution Episode
• Air Quality Criteria
• Air Quality Standards
• Air Sparging
• Air Stripping
• Air Toxics
• Air/Oil Table
• Airborne Particulates
• Airborne Release
• Alachlor
• Alar
• Aldicarb
• Algae
• Algal Blooms
• Algicide
• Aliquot
• Alkaline
• Alkalinity
• Allergen
• Alluvial
• Alternate Method
• Alternative Compliance
• Alternative Energy
• Alternative Fibers
• Alternative Fuels
• Alternative Remedial Contract Strategy Contractors
• Alternative Transportation
• Ambient Air
• Ambient Air Quality Standards
• Ambient Measurement
• Ambient Medium
• Ambient Temperature
• Amendment
• Amprometric Titration
• Anaerobic
• Anaerobic Decomposition
• Ancient Forest
• Animal Dander
• Animal Studies
• Anisotropy
• Annular Space, Annulus
• Antagonism
• Antarctic "Ozone Hole"
• Anti-Degradation Clause
• Anti-Microbial
• Applicable Or Relevant And Appropriate Requirements (ARARs)
• Applied Dose
• Apportionment
• Appropriation
• Aquaculture
• Aqueous
• Aqueous Solubility
• Aquifer
• Aquifer Test
• Aquitard
• Architectural Coatings
• Area Of Review
• Area Source
• Arms Control
• Aromatics
• Arsenicals
• Artesian (Aquifer Or Well)
• Asbestos
• Asbestos Abatement
• Asbestos Assessment
• Asbestos Program Manager
• Asbestos-Containing Waste Materials (ACWM)
• Asbestosis
• Ash
• Assay
• Assessment Endpoint
• Assimilation
• Assimilative Capacity
• Association Of Boards Of Certification
• Asthma
• Atmosphere
• Atomic Energy
• Attainment Area
• Attenuation
• Attractant
• Attrition
• Availability Session
• Available Chlorine
• Avoided Cost
• Back Pressure
• Backflow/Back Siphonage
• Background Level
• Backwashing
• Backyard Composting
• BACT - Best Available Control Technology
• Bacteria
• Bactericide
• Baffle
• Baffle Chamber
• Baghouse Filter
• Bailer
• Baling
• Ballistic Separator
• Band Application
• Banking
• Bar Screen
• Barrel Sampler
• Barrier Coating(s)
• Basal Application
• Basalt
• Beach Closure
• Bean Sheet
• Bed Load
• BEN
• Bench-scale Tests
• Benefit-Cost Analysis
• Benthic/Benthos
• Bentonite
• Beryllium
• Best Available Control Measures (BACM)
• Best Available Control Technology (BACT)
• Best Demonstrated Available Technology (BDAT)
• Best Management Practice (BMP)
• Bill
• Billfish
• Bimetal
• Bioaccumulants
• Bioassay
• Bioavailabiliity
• Biochemical Oxygen Demand (BOD)
• Bioconcentration
• Biodegradable
• Biodiversity
• Biological Contaminants
• Biological Control
• Biological Integrity
• Biological Magnification
• Biological Measurement
• Biological Medium
• Biological Oxidation
• Biological Oxygen Demand (BOD)
• Biological Pesticides
• Biological Stressors
• Biological Treatment
• Biologically Effective Dose
• Biologicals
• Biomass
• Biome
• Biomonitoring
• Bioremediation
• Biosensor
• Biosphere
• Biosphere Reserve
• Biostabilizer
• Biota
• Biotechnology
• Biotic
• Biotic Community
• Biotransformation
• Birth Control
• Birth Defects
• Birth Rate
• Blackwater
• Bloc
• Blood Lead Levels
• Blood Products
• Bloom
• BOD5
• Body Burden
• Bog
• Boiler
• Boom
• Borehole
• Botanical Pesticide
• Bottle Bill
• Bottled Water
• Bottom Ash
• Bottom Land Hardwoods
• Bounding Estimate
• Brackish
• Breakpoint Chlorination
• Breakthrough
• Breathing Zone
• Brine Mud
• British Thermal Unit
• Broadcast Application
• Brownfields
• Bubble
• Bubble Policy
• Budget
• Budget Reconciliation
• Budget Resolution
• Buffer
• Buffer Strips
• Building Cooling Load
• Building Envelope
• Building Related Illness
• Bulk Sample
• Bulky Waste
• Burial Ground (Graveyard)
• Buy-Back Center
• By-product
• Bycatch
• Bycatch Reduction Device (Bdr)
• Cadmium (Cd)
• Cairo Plan
• Calendar
• Cancellation
• Cancer
• Cap
• Capacity Assurance Plan
• Capillary Action
• Capillary Fringe
• Capture Efficiency
• Carbon Absorber
• Carbon Adsorption
• Carbon Dioxide (Co2)
• Carbon Monoxide (CO)
• Carbon Tax
• Carbon Tetrachloride (CC14)
• Carboxyhemoglobin
• Carcinogen
• Carcinogens
• Carpooling
• Carrier
• Carrying Capacity
• CAS Registration Number
• Case Study
• Cask
• Catalyst
• Catalytic Converter
• Catalytic Incinerator
• Categorical Exclusion
• Categorical Pretreatment Standard
• Cathodic Protection
• Caucus
• Cavitation
• Cells
• Cementitious
• Central Collection Point
• Centrifugal Collector
• CERCLIS
• CFC
• Chamber
• Channelization
• Characteristic
• Characterization Of Ecological Effects
• Characterization Of Exposure
• Check-Valve Tubing Pump
• Chemical Case
• Chemical Compound
• Chemical Element
• Chemical Oxygen Demand (COD)
• Chemical Stressors
• Chemical Treatment
• Chemnet
• Chemosterilant
• Chemtrec
• Child Resistant Packaging (CRP)
• Chiller
• Chilling Effect
• Chisel Plowing
• Chlorinated Hydrocarbons
• Chlorinated Solvent
• Chlorination
• Chlorination Byproducts
• Chlorinator
• Chlorine
• Chlorine-Contact Chamber
• Chlorofluorocarbons (CFCs)
• Chlorophenoxy
• Chlorosis
• Cholinesterase
• Chromium
• Chronic Effect
• Chronic Exposure
• Chronic Toxicity
• Circle Of Influence
• Cistern
• Clarification
• Clarifier
• Class I Area
• Class I Substance
• Class II Substance
• Clay Soil
• Clayoquot Sound
• Clean Coal Technology
• Clean Fuel
• Clean Fuels
• Cleaner Technologies Substitutes Assessment
• Cleanup
• Clear Cut
• Clear Well
• Clearcutting
• Climate Change
• Climate Change (also Referred To As 'global Climate Change')
• Cloning
• Closed-Loop Recycling
• Closure
• Cloture
• Co-fire
• Coagulation
• Coal Cleaning Technology
• Coal Gasification
• Coastal Pelagic
• Coastal Zone
• Code Of Federal Regulations (CFR)
• Coefficient Of Haze (COH)
• Cogeneration
• Coke Oven
• Cold Temperature CO
• Coliform Index
• Coliform Organism
• Collector
• Collector Sewers
• Colloids
• Combined Sewer Overflows
• Combined Sewers
• Combustion
• Combustion Chamber
• Combustion Product
• Command Post
• Command-and-Control Regulations
• Comment Period
• Commercial Extinction
• Commercial Waste
• Commercial Waste Management Facility
• Commingled Recyclables
• Comminuter
• Comminution
• Common Sense Initiative
• Communities Of Color
• Community
• Community Relations
• Community Right-to-know
• Community Water System
• Compact Fluorescent Lamp (CFL)
• Compact Fluorescents
• Compaction
• Comparative Risk Assessment
• Complete Treatment
• Compliance Coal
• Compliance Coating
• Compliance Cycle
• Compliance Monitoring
• Compliance Schedule
• Composite Sample
• Compost
• Composting
• Composting Facilities
• Compressed Natural Gas (CNG)
• Concentration
• Condensate
• Condensate Return System
• Conditional Registration
• Conditionally Exempt Generators (CE)
• Conductance
• Conductivity
• Cone Of Depression
• Cone Of Influence
• Cone Penterometer Testing (CPT)
• Confidential Business Information (CBI)
• Confidential Statement Of Formula (CSF)
• Confined Aquifer
• Confluent Growth
• Congressional Record
• Consent Decree
• Conservation
• Conservation Easement
• Constituent(s) Of Concern
• Construction And Demolition Waste
• Construction Ban
• Consumptive Water Use
• Contact Pesticide
• Contaminant
• Contamination
• Contamination Source Inventory
• Contingency Plan
• Continuous Discharge
• Continuous Sample
• Contour Plowing
• Contour Strip Farming
• Contraceptive
• Contract Labs
• Control Technique Guidelines (CTG)
• Controlled Reaction
• Conventional Filtration
• Conventional Pollutants
• Conventional Site Assessment
• Conventional Systems
• Conventional Tilling
• Conveyance Loss
• Cooling Electricity Use
• Cooling Tower
• Cooperative Agreement
• Core
• Core Program Cooperative Agreement
• Corrective Action
• Corrosion
• Corrosive
• Cost Recovery
• Cost Sharing
• Cost-Effective Alternative
• Cost/Benefit Analysis
• Cover Crop
• Cover Material
• Cradle-to-Grave Or Manifest System
• Creek
• Criteria
• Criteria Pollutants
• Critical Effect
• Critical Mass
• Crop Consumptive Use
• Crop Dusting
• Crop Rotation
• Cross Contamination
• Cross-Connection
• Crumb Rubber
• Cryptosporidium
• Cubic Feet Per Minute (CFM)
• Cullet
• Cultural Eutrophication
• Cultures And Stocks
• Cumulative Ecological Risk Assessment
• Cumulative Exposure
• Cumulative Working Level Months (CWLM)
• Curb Stop
• Curbside Collection
• Cutie-Pie
• Cuttings
• Cyclone Collector
• Data Call-In
• Data Quality Objectives (DQOs)
• Day Tank
• DDT
• Dead End
• Deadmen
• Decant
• Decay Products
• Dechlorination
• Decomposition
• Decontamination
• Deep-Well Injection
• Deflocculating Agent
• Defluoridation
• Defoliant
• Degasification
• Degree-Day
• Delegated State
• Delist
• Demand Side Management (Dsm)
• Demand-side Waste Management
• Demersal
• Demineralization
• Denitrification
• Dense Non-Aqueous Phase Liquid (DNAPL)
• Density
• Depletion Curve
• Depressurization
• Dermal Absorption/Penetration
• Dermal Exposure
• Dermal Toxicity
• DES
• Desalination
• Desiccant
• Design Capacity
• Design Value
• Designated Pollutant
• Designated Uses
• Designer Bugs
• Destination Facility
• Destratification
• Destroyed Medical Waste
• Destruction And Removal Efficiency (DRE)
• Destruction Facility
• Desulfurization
• Detectable Leak Rate
• Detection Criterion
• Detection Limit
• Detention Time
• Detergent
• Development
• Development Effects
• Dewater
• Diatomaceous Earth (Diatomite)
• Diazinon
• Dibenzofurans
• Dicofol
• Diesel
• Diesel Engine
• Diffused Air
• Diffusion
• Digester
• Digestion
• Dike
• Diluent
• Dilution Ratio
• Dimictic
• Dinocap
• Dinoseb
• Dioxin
• Direct Discharger
• Direct Filtration
• Direct Push
• Direct Runoff
• Discharge
• Disinfectant
• Disinfectant By-Product
• Disinfectant Time
• Dispersant
• Displacement Savings
• Disposables
• Disposal
• Disposal Facilities
• Dissolved Oxygen (DO)
• Dissolved Solids
• Distillation
• Disturbance
• Diversion
• Diversion Rate
• DNA Hybridization
• Dobson Unit (DU)
• Domestic Application
• Dosage/Dose
• Dose Equivalent
• Dose Rate
• Dose Response
• Dose Response Curve
• Dose-Response Assessment
• Dose-Response Relationship
• Dosimeter
• DOT Reportable Quantity
• Double Hulled Tankers
• Downgradient
• Downstream Processors
• DP Hole
• Draft
• Draft Permit
• Drainage
• Drainage Basin
• Drainage Well
• Drawdown
• Dredge
• Dredging
• Driftnet
• Drilling Fluid
• Drinking Water Equivalent Level
• Drinking Water State Revolving Fund
• Drive Casing
• Drive Point Profiler
• Drop-off
• Dual-Phase Extraction
• Dump
• Dump Sites
• Duplicate
• Dustfall Jar
• Dystrophic Lakes
• Ecological Entity
• Ecological Exposure
• Ecological Impact
• Ecological Indicator
• Ecological Integrity
• Ecological Risk Assessment
• Ecological/Environmental Sustainability
• Ecologist
• Ecology
• Economic Poisons
• Ecosphere
• Ecosystem
• Ecosystem Structure
• Ecotone
• Edge Cities
• Efficiency
• Effluent
• Effluent Guidelines
• Effluent Limitation
• Effluent Standard
• Ejector
• Electric Vehicles
• Electrodialysis
• Electromagnetic Geophysical Methods
• Electrostatic Precipitator (ESP)
• Eligible Costs
• EMAP Data
• Emergency (Chemical)
• Emergency And Hazardous Chemical Inventory
• Emergency Episode
• Emergency Exemption
• Emergency Removal Action
• Emergency Response Values
• Emergency Suspension
• Emission
• Emission Cap
• Emission Factor
• Emission Inventory
• Emission Standard
• Emissions Cap
• Emissions Trading
• Emulsifier
• Encapsulation
• Enclosure
• End User
• End-of-the-pipe
• End-use Product
• Endangered Species
• Endangerment Assessment
• Endocrine Disruptors
• Endrin
• Energy Conservation
• Energy Efficiency
• Energy Management System
• Energy Recovery
• Enforceable Requirements
• Enforcement
• Enforcement Decision Document (EDD)
• Engineered Controls
• Enhanced Inspection And Maintenance (I&M)
• Enrichment
• Enrolled Bill
• Entrain
• Environment
• Environmental Assessment
• Environmental Audit
• Environmental Equity/Justice
• Environmental Exposure
• Environmental Fate
• Environmental Fate Data
• Environmental Impact Statement
• Environmental Indicator
• Environmental Justice
• Environmental Lien
• Environmental Medium
• Environmental Monitoring For Public Access And Community Tracking
• Environmental Response Team
• Environmental Site Assessment
• Environmental Sustainability
• Environmental Tobacco Smoke
• Environmental/Ecological Risk
• Epidemiology
• Epilimnion
• Episode (Pollution)
• Equilibrium
• Equity
• Equivalent Method
• Erosion
• Established Treatment Technologies
• Estimated Environmental Concentration
• Estuary
• Ethanol
• Ethylene Dibromide (EDB)
• Eugenics
• Eutrophic Lakes
• Eutrophication
• Evaporation Ponds
• Evapotranspiration
• Everglades
• Exceedance
• Exclusion
• Exclusionary Ordinance
• Executive Session
• Exempt Solvent
• Exempted Aquifer
• Exemption
• Exotic Species
• Experimental Use Permit
• Explosive Limits
• Exports
• Exposure
• Exposure Assessment
• Exposure Concentration
• Exposure Indicator
• Exposure Level
• Exposure Pathway
• Exposure Route
• Exposure-Response Relationship
• Extraction Procedure (EP Toxic)
• Extraction Well
• Extremely Hazardous Substances
• Exurbia
• Fabric Filter
• Facilities Plans
• Facility Emergency Coordinator
• Factory Farming
• Factory Ships
• Facultative Bacteria
• Family Planning
• Fauna
• Feasibility Study
• Fecal Coliform Bacteria
• Federal Implementation Plan
• Federal Land
• Federal Motor Vehicle Control Program
• Feedlot
• Feedlots
• Fen
• Ferrous Metals
• Fertility
• Fertility Rates
• FIFRA Pesticide Ingredient
• Fill
• Filling
• Filter Strip
• Filtration
• Financial Assurance For Closure
• Finding Of No Significant Impact
• Finished Water
• First Draw
• Fiscal Year
• Fisheries
• Fissile Material
• Fission
• Fix A Sample
• Fixed-Location Monitoring
• Flammable
• Flare
• Flash Point
• Floc
• Flocculation
• Floodplain
• Floor Sweep
• Flora
• Florida Bay
• Flow Rate
• Flowable
• Flowmeter
• Flue Gas
• Flue Gas Desulfurization
• Fluidized
• Fluidized Bed Incinerator
• Flume
• Fluoridation
• Fluorides
• Fluorocarbons (FCs)
• Flush
• Flux
• Fly Ash
• Fogging
• Food Chain
• Food Processing Waste
• Food Waste
• Food Web
• Forest Certification
• Forests
• Formaldehyde
• Formulation
• Fossil Fuel
• Fracture
• Free Product
• Freeboard
• Fresh Kills
• Fresh Water
• Friable
• Friable Asbestos
• Fuel Economy Standard
• Fuel Efficiency
• Fuel Switching
• Fugitive Emissions
• Fume
• Fumigant
• Functional Equivalent
• Fungicide
• Fungistat
• Fungus (Fungi)
• Furrow Irrigation
• Future Liability
• Game Fish
• Garbage
• Gas
• Gas Chromatograph/Mass Spectrometer
• Gasahol
• Gasification
• Gasoline
• Gasoline Volatility
• General Permit
• General Reporting Facility
• Generally Recognized As Safe (GRAS)
• Generator
• Genetic Engineering
• Genotoxic
• Geographic Information System (GIS)
• Geological Log
• Geophysical Log
• Geothermal
• Geothermal/Ground Source Heat Pump
• Germicide
• Giardia Lamblia
• Gillnets
• Glass Containers
• Global Warming
• Global Warming Potential
• Glovebag
• Golden Carrot
• Gooseneck
• Grab Sample
• Grain Loading
• Granular Activated Carbon Treatment
• Grasscycling
• Grassed Waterway
• Grassroots
• Gray Water
• Grazing
• Green Design
• Greenhouse
• Greenhouse Effect
• Greenhouse Gas
• Greenway
• Grinder Pump
• Gross Alpha/Beta Particle Activity
• Gross Power-Generation Potential
• Ground Cover
• Ground Water
• Ground Water Under The Direct Influence (UDI) Of Surface Water
• Ground-Penetrating Radar
• Ground-Water Discharge
• Ground-Water Disinfection Rule
• Groundfish
• Groundwater
• Growth Overfishing
• Gully Erosion
• Habitat
• Habitat Indicator
• Half-Life
• Halogen
• Halon
• Hammer Mill
• Hard Water
• Harpooning
• Hauler
• Hazard
• Hazard Assessment
• Hazard Communication Standard
• Hazard Evaluation
• Hazard Identification
• Hazard Quotient
• Hazard Ratio
• Hazardous Air Pollutants
• Hazardous Chemical
• Hazardous Ranking System
• Hazardous Substance
• Hazardous Waste
• Hazardous Waste Landfill
• Hazardous Waste Minimization
• Hazards Analysis
• Hazards Identification
• Haze
• Headspace
• Health Advisory Level
• Health Assessment
• Hearings
• Heat Island Effect
• Heat Pump
• Heavy Metals
• Heptachlor
• Herbicide
• Herbivore
• Heterotrophic Organisms
• High End Exposure (dose) Estimate
• High Intensity Discharge
• High Seas
• High-Density Polyethylene
• High-Level Nuclear Waste Facility
• High-Level Radioactive Waste (HLRW)
• High-Line Jumpers
• High-Risk Community
• High-to-Low-Dose Extrapolation
• Highest Dose Tested
• Highly Migratory Fish
• Holding Pond
• Holding Time
• Hollow Stem Auger Drilling
• Homeowner Water System
• Homogeneous Area
• Hood Capture Efficiency
• Host
• Household Hazardous Waste
• Household Hazards
• Household Waste (Domestic Waste)
• Human Equivalent Dose
• Human Exposure Evaluation
• Human Health Risk
• Hydraulic Conductivity
• Hydraulic Gradient
• Hydrocarbons (HC)
• Hydroelectric
• Hydrofluorocarbons
• Hydrogen Sulfide (H2S)
• Hydrogeological Cycle
• Hydrogeology
• Hydrologic Cycle
• Hydrology
• Hydrolysis
• Hydronic
• Hydrophilic
• Hydrophobic
• Hydropneumatic
• Hydropower
• Hypersensitivity Diseases
• Hypolimnion
• Hypoxia
• Hypoxia/Hypoxic Waters
• ICPD
• Identification Code Or EPA I.D. Number
• Ignitable
• IM240
• Imhoff Cone
• Immediately Dangerous To Life And Health (IDLH)
• Imminent Hazard
• Imminent Threat
• Immiscibility
• Impermeable
• Imports
• Impoundment
• In Situ
• In Vitro
• In Vivo
• In-Line Filtration
• In-Situ Flushing
• In-Situ Oxidation
• In-Situ Stripping
• In-Situ Vitrification
• Incident Command Post
• Incident Command System (ICS)
• Incineration
• Incineration At Sea
• Incinerator
• Incinerators
• Incompatible Waste
• Indemnification
• Indicator
• Indirect Discharge
• Indirect Source
• Indoor Air
• Indoor Air Pollution
• Indoor Climate
• Industrial Pollution Prevention
• Industrial Process Waste
• Industrial Sludge
• Industrial Source Reduction
• Industrial Waste
• Industrialized Countries
• Inert Ingredient
• Inertial Separator
• Infectious Agent
• Infectious Waste
• Infiltration
• Infiltration Gallery
• Infiltration Rate
• Inflow
• Influent
• Information Collection Request (ICR)
• Information File
• Inhalable Particles
• Initial Compliance Period (Water)
• Injection Well
• Injection Zone
• Innovative Technologies
• Innovative Treatment Technologies
• Inoculum
• Inorganic Chemicals
• Insecticide
• Insecticides
• Inspection And Maintenance (I/M)
• Institutional Waste
• Instream Use
• Integrated Exposure Assessment
• Integrated Pest Management (IPM)
• Integrated Waste Management
• Interceptor Sewers
• Interface
• Interfacial Tension
• Interim (Permit) Status
• Internal Dose
• International Conference On Population And Development
• International Planned Parenthood Federation (Ippf)
• Interstate Carrier Water Supply
• Interstate Commerce Clause
• Interstate Waters
• Interstitial Monitoring
• Intrastate Product
• Inventory (TSCA)
• Inversion
• Ion
• Ion Exchange Treatment
• Ionization Chamber
• Ionizing Radiation
• IRIS
• Irradiated Food
• Irradiation
• Irreversible Effect
• Irrigation
• Irrigation Efficiency
• Irrigation Return Flow
• Irritant
• Isoconcentration
• Isopleth
• Isotope
• Isotropy
• Jar Test
• Joint And Several Liability
• Karst
• Kinetic Energy
• Kinetic Rate Coefficient
• Laboratory Animal Studies
• Lagoon
• Lakes
• Land Application
• Land Ban
• Land Disposal Restrictions
• Land Farming (of Waste)
• Land Use
• Landfill
• Landfills
• Landings
• Landscape
• Landscape Characterization
• Landscape Ecology
• Landscape Indicator
• Langelier Index (LI)
• Large Quantity Generator
• Large Water System
• Laser Induced Fluorescence
• Latency
• Lateral Sewers
• Laundering Weir
• Law
• LC 50/Lethal Concentration
• LD 50/ Lethal Dose
• Ldlo
• Leachate
• Leachate Collection System
• Leaching
• Lead
• Lead (Pb)
• Lead Poisoning
• Lead Service Line
• Least-cost Planning
• Legionella
• Lethal Concentration 50
• Lethal Dose 50
• Leukemia
• Level Of Concern (LOC)
• Life Cycle Assessment
• Life Cycle Of A Product
• Lifetime Average Daily Dose
• Lifetime Exposure
• Lift
• Lifting Station
• Light Non-Aqueous Phase Liquid (LNAPL)
• Light Pollution
• Light-Emitting Diode
• Limestone Scrubbing
• Limit Of Detection (LOD)
• Limited Degradation
• Limiting Factor
• Limnology
• Lindane
• Liner
• Lipid Solubility
• Liquefaction
• Liquid Injection Incinerator
• List
• Listed Waste
• Lithology
• Litter
• Littoral Zone
• Local Education Agency (LEA)
• Local Emergency Planning Committee (LEPC)
• Logging
• Longlines
• Low Density Polyethylene (LOPE)
• Low Emissivity (low-E) Windows
• Low NOx Burners
• Low-emission Vehicles
• Low-impact Camping
• Low-Level Radioactive Waste (LLRW)
• Lower Detection Limit
• Lower Explosive Limit (LEL)
• Lowest Acceptable Daily Dose
• Lowest Achievable Emission Rate
• Lowest Observed Adverse Effect Level (LOAEL)
• Lumber
• Lung Diseases
• Lymphoma
• Macropores
• Magnetic Separation
• Major Modification
• Major Stationary Sources
• Majority Leader
• Majors
• Malthusian
• Mammal
• Man-Made (Anthropogenic) Beta Particle And Photon Emitters
• Managed Growth
• Management Plan
• Managerial Controls
• Manatee
• Mandatory Recycling
• Manifest
• Manifest System
• Manual Separation
• Manufacturer's Formulation
• Manufacturing Use Product
• Marbled Murrelet
• Margin Of Exposure (MOE)
• Margin Of Safety
• Marine Mammal
• Marine Sanitation Device
• Mark-up
• Marsh
• Mass Transit
• Material Category
• Material Safety Data Sheet (MSDS)
• Material Type
• Materials Recovery Facility (MRF)
• Maximally (or Most) Exposed Individual
• Maximum Acceptable Toxic Concentration
• Maximum Available Control Technology (MACT)
• Maximum Contaminant Level
• Maximum Contaminant Level Goal (MCLG)
• Maximum Exposure Range
• Maximum Residue Level
• Maximum Tolerated Dose
• Measure Of Effect/ Measurement Endpoint
• Measure Of Exposure
• Mechanical Aeration
• Mechanical Separation
• Mechanical Turbulence
• Medfly
• Media
• Medical Surveillance
• Medical Waste
• Medium-size Water System
• Megalopolis
• Meniscus
• Mercury (Hg)
• Mesotrophic
• Metabolites
• Metalimnion
• Methane
• Methanol
• Method 18
• Method 24
• Method 25
• Method Detection Limit (MDL)
• Methoxychlor
• Methyl Bromide
• Methyl Orange Alkalinity
• Microbial Growth
• Microbial Pesticide
• Microclimate
• Microenvironmental Method
• Microenvironments
• Million-Gallons Per Day (MGD)
• Minimization
• Mining
• Mining Of An Aquifer
• Mining Waste
• Minor Source
• Minority Leader
• Minors
• Minuteman
• Miscellaneous ACM
• Miscellaneous Materials
• Miscible Liquids
• Missed Detection
• Mist
• Mitigation
• Mixed Funding
• Mixed Glass
• Mixed Liquor
• Mixed Metals
• Mixed Municipal Waste
• Mixed Paper
• Mixed Plastic
• Mobile Incinerator Systems
• Mobile Source
• Model Plant
• Modified Bin Method
• Modified Source
• Moisture Content
• Molecule
• Molten Salt Reactor
• Monitoring
• Monitoring Well
• Monoclonal Antibodies (Also Called MABs And MCAs)
• Monomictic
• Montreal Protocol
• Moratorium
• Morbidity
• Mortality
• Most Probable Number
• Muck Soils
• Mudballs
• Mulch
• Multi-Media Approach
• Multiple Chemical Sensitivity
• Multiple Use
• Multistage Remote Sensing
• Municipal Discharge
• Municipal Sewage
• Municipal Sludge
• Municipal Solid Waste
• Mutagen/Mutagenicity
• National Ambient Air Quality Standards (NAAQS)
• National Emissions Standards For Hazardous Air Pollutants (NESHAPS)
• National Environmental Performance Partnership Agreements
• National Estuary Program
• National Municipal Plan
• National Oil And Hazardous Substances Contingency Plan (NOHSCP/NCP)
• National Pollutant Discharge Elimination System (NPDES)
• National Priorities List (NPL)
• National Recreation Areas
• National Response Center
• National Response Team (NRT)
• National Secondary Drinking Water Regulations
• Navigable Waters
• Necrosis
• Negotiations (Under Superfund)
• Nematocide
• Nephelometric
• Netting
• Neutralization
• New Source
• New Source Performance Standards (NSPS)
• New Source Review (NSR)
• Nitrate
• Nitric Oxide (NO)
• Nitrification
• Nitrilotriacetic Acid (NTA)
• Nitrite
• Nitrogen Dioxide (NO2)
• Nitrogen Oxide (NOx)
• Nitrogen Oxides
• Nitrogenous Wastes
• Nitrophenols
• No Further Remedial Action Planned
• No Observable Adverse Effect Level (NOAEL)
• No Till
• No-Observed-Effect-Level (NOEL)
• Noble Metal
• Noise
• Noise Pollution
• Non-Aqueous Phase Liquid (NAPL)
• Non-Attainment Area
• Non-Binding Allocations Of Responsibility (NBAR)
• Non-Community Water System
• Non-Compliance Coal
• Non-Contact Cooling Water
• Non-Conventional Pollutant
• Non-Degradation
• Non-Ferrous Metals
• Non-ionizing Electromagnetic Radiation
• Non-Methane Hydrocarbon (NMHC)
• Non-Methane Organic Gases (NMOG)
• Non-Point Sources
• Non-potable
• Non-Road Emissions
• Non-Transient Non-Community Water System
• Nondischarging Treatment Plant
• Nonfriable Asbestos-Containing Materials
• Nonhazardous Industrial Waste
• Notice Of Deficiency
• Notice Of Intent To Cancel
• Notice Of Intent To Deny
• Notice Of Intent To Suspend
• Nuclear Energy
• Nuclear Power
• Nuclear Reactor
• Nuclear Reactors And Support Facilities
• Nuclear Tests
• Nuclear Winter
• Nuclide
• Nutrient
• Nutrient Pollution
• Oceanography
• Oil
• Oil Spills
• Old Growth Forests
• Omnibus Spending Bill
• Over-development
• Over-fishing
• Over-grazing
• Ozone
• Ozone Depletion
• Ozone Hole
• Packaging
• Packed Bed Scrubber
• Packed Tower
• Packer
• Palatable Water
• Pandemic
• Paper
• Paper Mills
• Paper Processor/Plastics Processor
• Paper Products
• Parameter
• Paraquat
• Parshall Flume
• Part A Permit, Part B Permit
• Participation Rate
• Particle Count
• Particulate
• Particulate Loading
• Particulate Pollution
• Particulates
• Partition Coefficient
• Parts Per Billion (ppb)/Parts Per Million (ppm)
• Passive Smoking/Secondhand Smoke
• Passive Solar
• Passive Treatment Walls
• Pathogens
• Pathway
• Pay-As-You-Throw/Unit-Based Pricing
• Peak Electricity Demand
• Peak Levels
• Pelagic Species
• Percent Saturatiuon
• Perched Water
• Percolating Water
• Percolation
• Performance Bond
• Performance Data (For Incinerators)
• Performance Standards
• Periphyton
• Permeability
• Permissible Dose
• Permissible Exposure Limit
• Permit
• Persistence
• Persistent Pesticides
• Personal Air Samples
• Personal Measurement
• Personal Protective Equipment
• Pest
• Pest Control Operator
• Pesticide
• Pesticide Regulation Notice
• Pesticide Tolerance
• Pesticides
• PETE (Polyethylene Terepthalate)
• Petroleum
• Petroleum Derivatives
• PH
• Pharmacokinetics
• Phenolphthalein Alkalinity
• Phenols
• Phosphates
• Phosphogypsum Piles (Stacks)
• Phosphorus
• Phosphorus Plants
• Photochemical Oxidants
• Photochemical Smog
• Photosynthesis
• Physical And Chemical Treatment
• Phytoplankton
• Phytoremediation
• Phytotoxic
• Phytotreatment
• Picocuries Per Liter PCi/L)
• Piezometer
• Pilot Tests
• Plankton
• Plasma-Arc Reactor
• Plasmid
• Plastics
• Plate Tower Scrubber
• Plug Flow
• Plugging
• Plume
• Plutonium
• PM-10/PM-2.5
• PM10
• Pneumoconiosis
• Point Source
• Point-of-Contact Measurement Of Exposure
• Point-of-Disinfectant Application
• Point-of-Use Treatment Device
• Poison
• Poison Runoff
• Pollen
• Pollutant
• Pollutant Pathways
• Pollutant Standard Index (PSI)
• Polluted Runoff
• Pollution
• Pollution Prevention
• Polonium
• Polychlorinated Biphenyls
• Polyelectrolytes
• Polymer
• Polyvinyl Chloride (PVC)
• Population
• Population At Risk
• Porosity
• Portal-of-Entry Effect
• Post Consumer Waste
• Post-Chlorination
• Post-Closure
• Post-Consumer Materials/Waste
• Post-Consumer Recycling
• Potable Water
• Potential Dose
• Potentially Responsible Party (PRP)
• Potentiation
• Potentiometric Surface
• Power Plants
• Pre-Consumer Materials/Waste
• Pre-Harvest Interval
• Precautionary Principle
• Prechlorination
• Precipitate
• Precipitation
• Precipitator
• Precursor
• Preliminary Assessment
• Prescriptive
• Pressed Wood Products
• Pressure Sewers
• Pressure, Static
• Pressure, Total
• Pressure, Velocity
• Pretreatment
• Prevalent Level Samples
• Prevalent Levels
• Prevention Of Significant Deterioration (PSD)
• Primacy
• Primary Drinking Water Regulation
• Primary Effect
• Primary Standards
• Primary Treatment
• Primary Waste Treatment
• Principal Organic Hazardous Constituents (POHCs)
• Prions
• Prior Appropriation
• Probability Of Detection
• Process Variable
• Process Verification
• Process Wastewater
• Process Weight
• Producers
• Product Level
• Product Water
• Products Of Incomplete Combustion (PICs)
• Project XL
• Propellant
• Proportionate Mortality Ratio (PMR)
• Proposed Plan
• Proteins
• Protocol
• Protoplast
• Protozoa
• Public Comment Period
• Public Estate
• Public Health
• Public Health Approach
• Public Health Context
• Public Hearing
• Public Land
• Public Notice
• Public Transportation
• Public Water System
• Publicly Owned Treatment Works (POTWs)
• Pulp
• Pumping Station
• Pumping Test
• Purging
• Putrefaction
• Putrescible
• Pyrolysis
• Qualitative Use Assessment
• Quality Assurance/Quality Control
• Quench Tank
• Quorum
• Radiation
• Radiation Standards
• Radio Frequency Radiation
• Radioactive
• Radioactive Decay
• Radioactive Substances
• Radioactive Waste
• Radioactivity
• Radioisotopes
• Radionuclide
• Radius Of Influence
• Radius Of Vulnerability Zone
• Radon
• Radon Daughters/Radon Progeny
• Radon Decay Products
• Rainbow Report
• Rainforest
• Ranking Member
• Rasp
• Raw Agricultural Commodity
• Raw Sewage
• Raw Water
• Re-entry
• Reactivity
• Reaeration
• Real-Time Monitoring
• Reasonable Further Progress
• Reasonable Maximum Exposure
• Reasonable Worst Case
• Reasonably Available Control Measures (RACM)
• Reasonably Available Control Technology (RACT)
• Recarbonization
• Receiving Waters
• Receptor
• Recess
• Recharge
• Recharge Area
• Recharge Rate
• Reclamation
• Recombinant Bacteria
• Recombinant DNA
• Recommended Maximum Contaminant Level (RMCL)
• Reconstructed Source
• Reconstruction Of Dose
• Record Of Decision (ROD)
• Recovery Rate
• Recycle/Reuse
• Recycling
• Recycling And Reuse Business Assistance Centers
• Recycling Economic Development Advocates
• Recycling Mill
• Recycling Technical Assistance Partnership National Network
• Red Bag Waste
• Red Border
• Red Tide
• Redemption Program
• Reduce
• Reduction
• Reentry Interval
• Reference Dose (RfD)
• Reformulated Gasoline
• Refrigerants
• Refueling Emissions
• Refuse
• Refuse Reclamation
• Regeneration
• Regional Response Team (RRT)
• Registrant
• Registration
• Registration Standards
• Regulated Asbestos-Containing Material (RACM)
• Regulated Medical Waste
• Relative Ecological Sustainability
• Relative Permeability
• Relative Risk Assessment
• Release
• Remedial Action (RA)
• Remedial Design
• Remedial Investigation
• Remedial Project Manager (RPM)
• Remedial Response
• Remediation
• Remote Sensing
• Removal Action
• Renewable Energy
• Renewable Energy Production Incentive (REPI)
• Repeat Compliance Period
• Reportable Quantity (RQ)
• Repowering
• Representative Sample
• Reregistration
• Reserve Capacity
• Reservoir
• Residential Use
• Residential Waste
• Residual
• Residual Risk
• Residual Saturation
• Residue
• Resistance
• Resolution
• Resource Recovery
• Response Action
• Responsiveness Summary
• Restoration
• Restricted Entry Interval
• Restricted Use
• Restriction Enzymes
• Retrofit
• Reuse
• Reverse Osmosis
• Reversible Effect
• Ribonucleic Acid (RNA)
• Rider
• Rill
• Ringlemann Chart
• Riparian
• Riparian Habitat
• Riparian Rights
• Risk
• Risk (Adverse) For Endangered Species
• Risk Assessment
• Risk Characterization
• Risk Communication
• Risk Estimate
• Risk Factor
• Risk For Non-Endangered Species
• Risk Management
• Risk-based Targeting
• Risk-Specific Dose
• River Basin
• Rodenticide
• Rotary Kiln Incinerator
• Rough Fish
• Route Of Exposure
• Rubbish
• Run-Off
• Running Losses
• Sacrifical Anode
• Safe
• Safe Water
• Safe Yield
• Safener
• Sagebrush Rebellion
• Salinity
• Salt Water Intrusion
• Salts
• Salvage
• Salvage Logging
• Sampling Frequency
• Sanctions
• Sand Filters
• Sanitary Landfill
• Sanitary Sewers
• Sanitary Survey
• Sanitary Water (Also Known As Gray Water)
• Sanitation
• Saprolite
• Saprophytes
• Saturated Zone
• Saturation
• Science Advisory Board (SAB)
• Scrap
• Scrap Metal Processor
• Screening
• Screening Risk Assessment
• Scrubber
• Second-growth Forests
• Secondary Drinking Water Regulations
• Secondary Effect
• Secondary Materials
• Secondary Standards
• Secondary Treatment
• Secure Chemical Landfill
• Secure Maximum Contaminant Level
• Sediment
• Sediment Yield
• Sedimentation
• Sedimentation Tanks
• Sediments
• Seed Protectant
• Seepage
• Selective Pesticide
• Semi-Confined Aquifer
• Semivolatile Organic Compounds
• Senescence
• Septic System
• Septic Tank
• Serp (Super Efficient Refrigerator Program)
• Service Connector
• Service Line Sample
• Service Pipe
• Set-Back
• Settleable Solids
• Settling Chamber
• Settling Tank
• Sewage
• Sewage Lagoon
• Sewage Sludge
• Sewer
• Sewerage
• Shading Coefficient
• Sharps
• Shock Load
• Short-Circuiting
• Sick Building Syndrome
• Signal
• Signal Words
• Significant Deterioration
• Significant Municipal Facilities
• Significant Non-Compliance
• Significant Potential Source Of Contamination
• Significant Violations
• Silos
• Silt
• Silviculture
• Single-Breath Canister
• Sink
• Sinking
• Sip (State Implementation Plan)
• SIP Call
• Site
• Site Assessment Program
• Site Inspection
• Site Safety Plan
• Siting
• Skimming
• Slbm (Submarine Launched Ballistic Missile)
• Slow Sand Filtration
• Sludge
• Sludge Digester
• Slurry
• Small Quantity Generator (SQG-sometimes Referred To As "Squeegee")
• Smelter
• Smog
• Smoke
• Soft Detergents
• Soft Water
• Soil Adsorption Field
• Soil And Water Conservation Practices
• Soil Conditioner
• Soil Erodibility
• Soil Gas
• Soil Moisture
• Soil Sterilant
• Solar Energy
• Solder
• Sole-Source Aquifer
• Solid Waste
• Solid Waste Disposal
• Solid Waste Management
• Solidification And Stabilization
• Solubility
• Soot
• Sorption
• Source Area
• Source Characterization Measurements
• Source Reduction
• Source Separation
• Source-Water Protection Area
• Sparge Or Sparging
• Speaker
• Special Local-Needs Registration
• Special Review
• Special Waste
• Species
• Specific Conductance
• Specific Yield
• Spill Prevention, Containment, And Countermeasures Plan (SPCP)
• Spoil<