Laboratory Terms F

A glossary of science, chemistry, environmental and laboratory terms.

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70 results match your search term:  F


Fabric Filter
A cloth device that catches dust particles from industrial emissions.

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Facilities Plans
Plans and studies related to the construction of treatment works necessary to...

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Facility Emergency Coordinator
Representative of a facility covered by environmental law (e.g, a chemical pl...

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Facultative Bacteria
Bacteria that can live under aerobic or anaerobic conditions.

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Feasibility Study
1. Analysis of the practicability of a proposal; e.g., a description and anal...

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Fecal Coliform Bacteria
Bacteria found in the intestinal tracts of mammals. Their presence in water o...

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Federal Implementation Plan
Under current law, a federally implemented plan to achieve attainment of air ...

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Federal Motor Vehicle Control Program
All federal actions aimed at controlling pollution from motor vehicles by suc...

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Feedlot
A confined area for the controlled feeding of animals. Tends to concentrate l...

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Fen
A type of wetland that accumulates peat deposits. Fens are less acidic than b...

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Ferrous Metals
Magnetic metals derived from iron or steel; products made from ferrous metals...

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FIFRA Pesticide Ingredient
An ingredient of a pesticide that must be registered with EPA under the Feder...

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Fill
Man-made deposits of natural soils or rock products and waste materials.

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Filling
Depositing dirt, mud or other materials into aquatic areas to create more dry...

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Filter Strip
Strip or area of vegetation used for removing sediment, organic matter, and o...

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Filtration
A treatment process, under the control of qualified operators, for removing s...

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Financial Assurance for Closure
Documentation or proof that an owner or operator of a facility such as a land...

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Finding of No Significant Impact
A document prepared by a federal agency showing why a proposed action would n...

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Finished Water
Water is "finished" when it has passed through all the processes in a water t...

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First Draw
The water that comes out when a tap is first opened, likely to have the highe...

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Fix a Sample
A sample is "fixed" in the field by adding chemicals that prevent water quali...

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Fixed-Location Monitoring
Sampling of an environmental or ambient medium for pollutant concentration at...

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Flammable
Any material that ignites easily and will burn rapidly.

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Flare
A control device that burns hazardous materials to prevent their release into...

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Flash Point
The lowest temperature at which evaporation of a substance produces sufficien...

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Floc
A clump of solids formed in sewage by biological or chemical action.

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Flocculation
Process by which clumps of solids in water or sewage aggregate through biolog...

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Floodplain
The flat or nearly flat land along a river or stream or in a tidal area that ...

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Floor Sweep
Capture of heavier-than-air gases that collect at floor level.

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Flow Rate
The rate, expressed in gallons -or liters-per-hour, at which a fluid escapes ...

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Flowable
Pesticide and other formulations in which the active ingredients are finely g...

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Flowmeter
A gauge indicating the velocity of wastewater moving through a treatment plan...

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Flue Gas
The air coming out of a chimney after combustion in the burner it is venting....

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Flue Gas Desulfurization
A technology that employs a sorbent, usually lime or limestone, to remove sul...

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Fluidized
A mass of solid particles that is made to flow like a liquid by injection of ...

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Fluidized Bed Incinerator
An incinerator that uses a bed of hot sand or other granular material to tran...

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Flume
A natural or man-made channel that diverts water.

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Fluoridation
The addition of a chemical to increase the concentration of fluoride ions in ...

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Fluorides
Gaseous, solid, or dissolved compounds containing fluorine that result from i...

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Fluorocarbons
Any of a number of organic compounds analogous to hydrocarbons in which one o...

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Flush
1. To open a cold-water tap to clear out all the water which may have been si...

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Flux
1. A flowing or flow. 2. A substance used to help metals fuse together.

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Fly Ash
Non-combustible residual particles expelled by flue gas.

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Fogging
Applying a pesticide by rapidly heating the liquid chemical so that it forms ...

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Food Chain
A sequence of organisms, each of which uses the next, lower member of the seq...

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Food Processing Waste
Food residues produced during agricultural and industrial operations.

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Food Waste
Uneaten food and food preparation wastes from residences and commercial estab...

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Food Web
The feeding relationships by which energy and nutrients are transferred from ...

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Formaldehyde
A colorless, pungent, and irritating gas, CH20, used chiefly as a disinfectan...

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Formulation
The substances comprising all active and inert ingredients in a pesticide.

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Fossil Fuel
Fuel derived from ancient organic remains; e.g. peat, coal, crude oil, and na...

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Fracking
Fracking, or hydraulic fracturing, is a process of injecting liquid at high p...

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Fracture
A break in a rock formation due to structural stresses; e.g. faults, shears, ...

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Free Product
A petroleum hydrocarbon in the liquid free or non aqueous phase.

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Freeboard
1. Vertical distance from the normal water surface to the top of a confining ...

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Fresh Water
Water that generally contains less than 1,000 milligrams-per-liter of dissolv...

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Friable
Capable of being crumbled, pulverized, or reduced to powder by hand pressure.

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Friable Asbestos
Any material containing more than one-percent asbestos, and that can be crumb...

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Fuel Economy Standard
The Corporate Average Fuel Economy Standard (CAFE) effective in 1978. It enha...

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Fuel Efficiency
The proportion of energy released by fuel combustion that is converted into u...

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Fuel Switching
1. A precombustion process whereby a low-sulfur coal is used in place of a hi...

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Fugitive Emissions
Emissions not caught by a capture system.

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Fume
Tiny particles trapped in vapor in a gas stream.

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Fumigant
A pesticide vaporized to kill pests. Used in buildings and greenhouses.

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Functional Equivalent
Term used to describe EPA's decision-making process and its relationship to t...

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Fungicide
Pesticides which are used to control, deter, or destroy fungi.

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Fungistat
A chemical that keeps fungi from growing.

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Fungus Fungi
Molds, mildews, yeasts, mushrooms, and puffballs, a group of organisms lackin...

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Furrow Irrigation
Irrigation method in which water travels through the field by means of small ...

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Future Liability
Refers to potentially responsible parties' obligations to pay for additional ...

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