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Absorption

Environment Absorbed doseAbsorption barrier

Absorption: The penetration of atoms, ions, or molecules into the bulk mass of a substance.

 


absorption (general)
Process of one material (absorbate) being retained by another (absorbent).

Absorption
1) The process by which one substance is taken into the body of another substance. 2) The penetration of molecules or ions of one or more substances (gas, liquid or solid) into the interior of another substance.

Absorption Barrier
Any of the exchange sites of the body that permit uptake of various substances at different rates (e.g., skin, lung tissue, and gastrointestinal-tract wall)
Absorption ...

Absorption When a solid takes up molecules into its structure.
Acidity The quantitative capacity of water to neutralize a base, expressed in ppm or mg/L calcium carbonate equivalent.

Absorption: The process of one substance entering into the inner structure of another.
Abrasion: The wearing away of a solid surface by friction.
Abrasive Cleaners: Products that clean through abrasive or scouring action.

Absorption Cross Section - A measurement of an atom or molecule's ability to absorb light at a specified wavelength, measured in square cm/particle. [Journal of Atmospheric Sciences; v50; 941-950; 1994.

absorption The uptake of water or dissolved chemicals by a cell or an organism (as tree roots absorb dissolved nutrients).
absorption coefficient ...

Absorption: The process of taking in, as when a sponge takes up water. Chemicals can be absorbed into the bloodstream after breathing or swallowing.

Absorption (of light) A process by which light is taken-up by another material.

Absorption: When a solid takes up molecules into its structure.
Accretion: A gradual increase in land area adjacent to a river
Acid aerosol: Very small liquid or solid particles that are acidic and are small enough to become airborne.

absorption factor. The fraction of a chemical making contact
with an organism that is absorbed by the organism.
acceptable daily Intake (ADI). Estimate of the largest amount ...

absorption = take in and store
ACCRA = Australian Climate Change Regulatory Authority
ACCSR = Australian Centre for Corporate Social Responsibility ...

Absorption
The process of taking in. For a person or an animal, absorption is the process of a substance getting into the body through the eyes, skin, stomach, intestines, or lungs.
Acute
Occurring over a short time [compare with chronic].

Absorption coefficient -Ratio of the absorbed amount of a substance to the administered amount.

Absorption
The penetration of a substance into or through another substance or medium is absorption.
Acid Rain ...

A absorption barrier
Definition (english only)
Any exposure surface that may allow diffusion of an agent into a target. Examples of absorption barriers are the skin, lung tissue, and gastrointestinal track wall.

Dermal Absorption/Penetration: Process by which a chemical penetrates the skin and enters the body as an internal dose.

Gas-Fired Absorption Chiller - Mechanical equipment that is used to generate chilled water for cooling of buildings. Conventional chillers use electricity as the energy source, whereas gas-fired absorption chillers use clean burning natural gas.

Atmospheric absorption of various wavelengths of electromagnetic radiation (measured along sea level).

Flame Atomic Absorption (AA): Atomic absorption which utilizes flame for excitation.
Flash Point: Lowest temperature at which the vapour above a liquid can be ignited in air.

The adsorption or absorption of ammonium ions by the mineral or organic fractions of the soil in such a way that the ions are relatively insotuble in water and relatively unexchangeable by the usual methods of cation exchange.
amorphous mineral ...

Absorption Process, either chemical or physical, by which a substance or particle, gas or liquid, is drawn into the structure of another. Acid A material with pH of less than 7.0.

A surface phenomenon which may be either absorption or adsorption, or a combination of the two; often used when the specific mechanism is not known.
span. The scale or range of values an instrument is designed to measure. Also see range.

absorption coefficient A measure of the amount of radiant energy, incident normal to a planar surface, that is absorbed per unit distance or unit mass of a substance.

The effect of trapping heat by the transmission of visible solar energy, and the absorption (or reflection) of infra red heat energy. This can be done by a sheet of glass or a layer of some gases, known as greenhouse gases.

The absorption of infrared radiation trying to escape from the Earth back to space is particularly important to the global energy balance.

Chlorophyll has minimal absorption in the green and yellow wavelength which is why most leaves are green. Other pigments also occur in tree leaves but normally are masked by the large amount of green chlorophyll.

In exposure assessment, the amount of a substance in contact with the primary absorption boundaries of an organism (e.g., skin, lung tissue, gastrointestinal track) and available for absorption.
Source: Terms of the Environment
...

Thermospheric temperatures increase with altitude due to absorption of highly energetic solar radiation by the small amount of residual oxygen still present. Temperatures can rise to 2,000 degrees Celsius.

Internal Dose: In exposure assessment, the amount of a substance penetrating the absorption barriers (e.g. skin, lung tissue, gastrointestinal tract) of an organism through either physical or biological processes. (See: absorbed dose) ...

But when a tree is cut down or an animal dies, the absorption stops and the level of carbon-14 begins to fall as the isotope decays.

Adding simulation of the ability of the environment to sink carbon dioxide suggested that rising fossil fuel emissions would decrease absorption from the atmosphere, amplifying climate warming beyond previous predictions, although "Globally, ...

A dose of one rad is equivalent to the absorption of 100 ergs (a small but measurable amount of energy) per gram of absorbing tissue. The rad has been replaced by the gray in the SI system of units (1 gray = 100 rad).

Scrubber: An air pollution control device that uses a high energy liquid spray to remove aerosol and gaseous pollutants from an air stream. The gases are removed either by absorption or chemical reaction.

Children are more susceptible to contaminants in food because they take in four times the amount of food per kilogram of body weight that adults do, are more likely to be exposed to impurities in food, and their absorption of foods is greater than is ...

See also: Sorption, Water, Concentration, Table, Gas