Radiation
Any of the various types of processes that involves energy traveling through a medium or through space until it is eventually absorbed by another body. The term radiation refers to the energy the process radiates from a source.
These types of radiation are all part of the electromagnetic spectrum, which means they involve energy traveling in the form of a wave. Different types of radiation have different wavelengths.
Various Opinions on Cell Phone Radiation and Your Healt...What you need to know about Cell Phone Radiation and He...
Radiation Flux - This is defined as the way heat from the sun is absorbed, scattered, returned, or deposited around the earth and can be expressed as some radiation arrival rate per the unit of area of the surface.
radiation sickness The complex of symptoms resulting from excessive exposure of most of the body to ionizing radiation.
Radiation Standards: Regulations that set maximum exposure limits for protection of the public from radioactive materials.
Radio Frequency Radiation: See Non-Ionizing Electromagnetic Radiation.
radiation toxicology
Scientific study involving research, education, prevention and treatment of diseases caused by ionizing or nonionizing radiation.
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Radiation: Transmission of energy though space or any medium. Also known as radiant energy.
Radiation. Energy emitted in the form of electromagnetic waves. Radiation has different characteristics depending upon the wavelength.
Radiation
Energy that passes from a warm object to a cooler one, like energy from the Sun to the Earth - sunlight.
Scandinavia
The countries of Sweden, Norway and Denmark, in the North of Europe.
Radiation
The process of emitting energy in the form of energetic particles (such as alpha particles or gamma radiation), light or heat. It also refers to that which is emitted.
Radiation Sickness: The complex of symptoms characterizing the disease known as radiation injury, resulting from excessive exposure (greater than 200 rads or 2 gray) of the whole body (o:r large part) to ionizing radiation.
Irradiation
Exposure to radiation of wavelengths shorter than those of visible light (gamma, x-ray, or ultra- violet), for medical purposes, to sterilize milk or other foodstuffs, or to induce polymerisation of monomers or vulcanisation of rubber.
R radiation flux
Definition (english only)
The way any form of radiation (ultraviolet, visible, infrared) from the sun is absorbed scattered or returned around the earth and can be expressed as some radiation arrival rate per the unit of area ...
Wave radiation. This is the property of glass which accounts for the heating effect of greenhouses. It is also the property of carbon dioxide.
Radiation from the sun that can be useful or potentially harmful. UV rays from one part of the spectrum (UV-A) enhance plant life. UV rays from other parts of the spectrum (UV-B) can cause skin cancer or other tissue damage.
Radiation from the sun that can be useful or potentially harmful.
Unconfined Aquifer
An aquifer containing water that is not under pressure; the water level in a well is the same as the water table outside the well.
Radiation Adsorbed Dose (unit of measurement of radiation absorbed by humans)
RADM
Random Walk Advection and Dispersion Model; Regional Acid Deposition Model ...
Radiation that can strip electrons from atoms; e.g., alpha, beta, and gamma radiation.
Irradiation ...
radiation in the form of alpha or beta particles, or as gamma
rays.
range. The spread from minimum to maximum values that an ...
UV radiation can be used to disinfect water as well. UV radiation is very effective at inactiavitng cysts, as long as the water has a low level of colour so the UV can pass through without being absorbed.
Ionizing Radiation- Radiation that can strip electrons from atoms; e.g. alpha, beta, and gamma radiation.
Exposure
Radiation or pollutants that come into contact with the body and present a potential health threat. The most common routes of exposure are through the skin, mouth, or by inhalation.
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Ultraviolet Radiation (UV): Electromagnetic radiation in the wavelength range of 200 to 400 nanometres. (Also known as ultraviolet light).
Ultra Violet. Radiation that has a wavelength shorter than visible light. It is often used to kill bacteria and destroy ozone.
Vapour
The gaseous phase of substances such as water.
The Atmospheric Radiation Measurement (ARM) Program is part of the US Department of Energy's strategy to understand global climate change.
Chlorofluorocarbons, used primarily to facilitate cooling in refrigerators and air conditioners, have been found to deplete the stratospheric ozone layer which protects the earth and its inhabitants from excessive ultraviolet radiation.
The organization publishes recommendations on ventilation, air sampling and air concentration guidelines (threshold limit values or TLVS) designed to control exposure of workers to chemicals, noise and radiation in the workplace.
Any man-made or natural element which emits radiation in the form of alpha or beta particles, or as gamma rays.
range. The spread from minimum to maximum values that an instrument is designed to measure. Also see span and effective range.
These properties are interconnected by the various physical processes such as precipitation, evaporation, infrared radiation, convection, advection, and turbulence.
PAR photosynthetically active radiation, 350 or 400 to 700 nm
parasitism. an interaction between two organisms from which one benefits and the other is harmed. Parasitism is usually to the detriment, but not death, of one organism.
Photosynthetically active radiation (PAR) Those wavelengths in the spectrum of radiation that are effective in photosynthesis.
High in the atmosphere is shields us from deadly UV radiation. Near the ground, it is a pollutant that comes from car exhausts, irritating the lungs.
The chemistry of the atmosphere is still not fully understood, but it is known that the stratospheric ozone layer protects life on earth from the harmful effects of shortwave (UV) radiation, by absorbing most of the solar UV-B radiation.
Greenhouse Gases (GHG): gases that contribute to the so-called "Greenhouse Effect" by which infra-red radiation (itself sunlight striking the Earth and reflected at longer wavelengths) is absorbed by molecules in the atmosphere.
Greenhouse Effect Greenhouse gases in the earth's atmosphere permit solar radiation to pass through but prevent most of the reflected infrared radiation from the earth's surface and lower atmosphere from escaping into outer space.
On these sites, upland slopes that face south and southwest receive significantly more direct solar radiation, causing them to be warmer and drier.
Greenhouse Gases: Any gas that absorbs infrared radiation in the atmosphere.
Greenhouse gases Gases which trap solar radiation. Of the solar energy entering the earth's atmosphere a portion is reflected back and a portion penetrates onto the earth's surface.
Greenhouse Effect - The effect produced as greenhouse gases allow incoming solar radiation to pass through the Earth's atmosphere, ...
There are two opposed effects: reduced ozone allows more solar radiation to penetrate, thus warming the troposphere. But a colder stratosphere emits less long-wave radiation, tending to cool the troposphere.
In the stratosphere (the atmospheric layer 7 to 10 miles or more above the earth's surface) ozone is a natural form of oxygen that provides a protective layer shielding the earth from ultraviolet radiation.
smog - a dense, discolored radiation fog containing large quanities of soot, ash, and gaseous pollutants such as sulfur dioxide and carbon dioxide, responsible for human respiratory ailments.
Ozone (O3) - A naturally occurring, highly reactive, irritating gas comprising triatomic oxygen formed by recombination of oxygen in the presence of ultraviolet radiation.
radiative = transfer by, or occurring as a result of, radiation
radiative forcing = instantaneous warming effect attributed to a concentration of greenhouse gases and aerosols in the atmosphere, measured in Watts per m2; due to CO2, ...
The product of the absorbed dose from ionizing radiation and such factors as account for biological differences due to the type of radiation and its distribution in the body in the body.
Source: Terms of the Environment
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Dose (for radioactive chemicals)
The radiation dose is the amount of energy from radiation that is actually absorbed by the body. This is not the same as measurements of the amount of radiation in the environment.
a gas composed of molecules that absorb and reradiate infrared electromagnetic radiation. When present in the atmosphere, therefore, the gas contributes to the greenhouse effect (heating of the earth's atmosphere).
Ozone Depletion is a thinning of the ozone layer, the blanket of ozone gas that shields us from the sun's damaging ultraviolet (UV) radiation.
PHOTODEGRADABLE A process where ultraviolet radiation degrades the chemical bond or link in the polymer or chemical structure of a plastic. See also: Degradability.
PL Plastic, all grades.
PM Precious metals.
ultraviolet light: Ultraviolet light is a kind of electromagnetic radiation from the sun that has a wavelength shorter than visible light, so we cannot see it. Though too much ultraviolet light is bad for us, we do need some to be healthy.
2. Deterioration of the Ozone Layer - Without protection from the sun's harsh UV radiation, plant life would suffer catastrophic losses and, subsequently, so will animal life, including humans. The "hole" in the ozone layer warrants watching.
Organic Food: (From the USDA) Food produced without: antibiotics; growth hormones; most conventional pesticides; petroleum- based fertilizers or sewage sludge-based fertilizers; bioengineering; or ionizing radiation.
Radioactive: Having the property of releasing radiation.
Rain: Water falling to earth in drops that have been condensed from moisture in the atmosphere.
Stratospheric ozone shields the Earth from ultraviolet radiation. The breakdown of certain chlorine and / or bromine-containing compounds that catalytically destroy ozone molecules in the stratosphere can cause a reduction in the ozone layer.
Gaseous constituents of the atmosphere, both natural and from human activity, that absorb and re-emit infrared radiation. Water vapor (H2O) is the most abundant greenhouse gas. Greenhouse gases are a natural part of the atmosphere
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Absorbance: A measure of the decrease in incident light passing through a sample into the detector. It is defined mathematically as: I = radiation intensity
Absorption: The penetration of atoms, ions, or molecules into the bulk mass of a substance.
Tannin: a phenolic compound found in plants believed to function in antiherbivore defense and protection from ultraviolet radiation
Taxonomy: the formal guidelines for classifying organisms based on evolutionary relationships ...
Microwave disinfection unit
equipment that shreds clinical waste and disinfects it with steam and microwave radiation ...
Ozone layer - in the upper atmosphere about 15 miles above sea level it forms a protective layer which shields the earth from excessive ultraviolet radiation and occurs naturally.
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 See also: Environment, Environmental, Water, Waste, Air
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