Radon Decay Products
A term used to refer collectively to the immediate products of the radon decay chain. These include Po-218, Pb-214, Bi-214, and Po-214, which have an average combined half-life of about 30 minutes.
Radon: A colorless, naturally occurring gas formed by radioactive decay of radium atoms. Radon accumulating in basements and other areas of buildings without proper ventilation has been identified as a leading cause of lung cancer.
radon - a cancer-causing radioactive gas found in many communities' ground water.
Radon
A common radioactive gas emitted from ordinary soils and rock. Radon has no smell, taste or colour and can seep into homes, building up to dangerous levels if there is not enough ventilation.
Radon: colorless, odorless, tasteless, radioactive gas.
Receiving Waters : bodies of water that receive runoff or wastewater discharges, such as rivers, streams, lakes, estuaries, and ground water.
Radon: A colorless, odorless gas that occurs naturally in almost all soil and rock. Radon migrates through the soil and groundwater and can enter buildings through cracks or other openings in the foundation. Radon can also enter well water.
Radon daughters/radon progeny
Short-lived radioactive decay products of radon that decay into longer-lived lead isotopes.
Radon
A gaseous, radioactive alpha particle-emitting element with a half-life of about four days. Radon exists naturally in many locations, and may present a serious health risk when it accumulates in basements or crawl spaces beneath homes.
Radon: A colorless, naturally occurring, radioactive, inert gaseous element formed by radioactive decay of radium atoms in soil or rocks.
Radon (Gas)
Radon is a naturally occurring Radioactive gas which is derived from the Uranium and Thorium decay series.
Radon
A colorless, odorless naturally occuring radioactive gas formed by the breakdown or decay of radium or uranium in soil or rocks like granite. Radon is fairly soluble in water, so well water may contain radon.
Reactants ...
picocuries per liter (PCi/l) Unit of measure used to express the results of radioactivity tests in air and water. For radon gas, one picocurie per liter is the amount of radon in the air so that 2.
Radon (Rn) gas, a carcinogen, is exuded from the Earth and trapped inside houses. Researchers have found that radon gas is responsible for over 1,800 deaths annually in the United Kingdom.
Background Radiation: Radiation from cosmic sources; naturally occurring radioactive materials, including radon (except as a decay product of source or special nuclear material), ...
The sum of lifetime exposure to radon working levels expressed in total working level months.
Curb Stop
A water service shutoff valve located in a water service pipe near the curb and between the water main and the building.
Picocuries Per Liter pCi/L): A unit of measure for levels of radon gas; becquerels per cubic meter is the metric equivalent.
Piezometer: A nonpumping well, generally of small diameter, for measuring the elevation of a water table.
The gases are mainly nitrogen and oxygen, together with elements of inert gases hydrogen, ozone, radon, and carbon dioxide.
Working Level (WL): A unit of measure for documenting exposure to radon decay products, the so-called "daughters." One working level is equal to approximately 200 picocuries per liter.
background radiation: Background radiation includes radiation from cosmic sources, naturally occurring radioactive materials (including radon), and global fallout (from the testing of nuclear explosive devices).
Decay Products- Degraded radioactive materials, often referred to as "daughters" or "progeny"; radon decay products of most concern from a public health standpoint are polonium-214 and polonium-218.
Radiation from cosmic sources; naturally occurring radioactive materials, including radon and fallout from nuclear weapons tests.
Beta (particle) ...
cumulative working level months (cwlm) The sum of lifetime exposure to radon working levels expressed in total working level months.
cumulous deposit ...
Granular activated carbon: Pure carbon heated to promote "active" sites which can adsorb pollutants. Used in some home water treatment systems to remove certain organic chemicals and radon.
The amount of pollutants found in geothermal vary from area to area but may contain arsenic, boron, selenium, lead, cadmium, and fluorides. They also may contain hydrogen sulphide, mercury, ammonia, radon, carbon dioxide, and methane.
radon Colorless, odorless radioactive gas formed by the decay of radium. react To act in response to something. For example, a chemical can change, or react, if added to another chemical.
 See also: Environment, Waste, Hazard, Water, Air
  
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