101. Radon [Rn] [86] - Chemical Element Datasheet - Periodic Table Of The Elements - Electronic, thermal, and steric data along with an isotope table. http://www.vcs.ethz.ch/chemglobe/ptoe/_/86.html

ChemGlobe Periodic Table of the Elements Radon Symbol: Rn Atomic number: Atomic mass: Group: Noble Gas CAS-number: Text version Deutsch Physical data Isotopes ... Other info Table navigation panel Back to periodic table Xe At Cs Uuo Go to element Physical data Electronic data Thermal data Steric data Shells: Orbitals: [Xe] 4f Electronegativity: 1. Ionization potential: 10.7485 eV 2. Ionization potential: eV 3. Ionization potential: eV Oxidation states: Electrical conductivity: Melting point: Boiling point: Specific heat: 0.09 J/gK Heat of fusion: 2.890 kJ/mol Heat of vaporization: 16.40 kJ/mol Thermal conductivity: 0.0000364 W/cmK Atomic radius: Ionic radius: Covalent radius: Atomic volume: Density (293 K): Crystal structure: Cubic: Face centered Legend Pocket calculator Isotopes Nuclide Abundance [%] Mass Spin Halflife Decay mode Decay tree Rn EC, View Rn View Rn View Rn View Rn View Rn View Rn View Legend Other info Name origin: Variation of the name of another element, radium. Description: Colorless, odorless, tasteless, radioactive, heavy, noble gas. Discovered by: Fredrich Ernst Dorn Year: Place: Germany Sources: Formed from the decay of radium in the earths crust.

102. Radiation Detectors, Radon Detectors, Thoron, Tritium Detection Manufactures passive integrating electret ionization chambers for measuring ionizing radiation (alpha, beta, gamma, neutrons) and radioactive gases/vapors (radon, thoron). http://www.radelec.com/

" Start Your Own Lucrative Radon Measurement Services " " News Release from HUD - Requires Radon Testing " Rad Elec develops, manufactures, and markets the only commercial electret ion chamber system in the world sells under the brand name E-PERM . These are passive integrating detectors for measuring radiations (alpha, beta, gamma, and neutrons) and radioactive gases and vapors (radon,thoron and tritium). Monitoring of: Radon (Air,Water,Soil,Flux) Thoron (Air) Indoor Radon Private Radon Measurement Companies Federal Agencies USPS USEPA USDOE USDOD USGSA USDOD 5714-C Industry Lane, Frederick, Maryland 21704 USA. Fax: (301) 694-0013 E-Mail: info@radelec.com Maintained by Visual Interactive, Inc. This page has been accessed times since August 27, 1997.

103. Visual Elements: Radon radon Rn General Information Discovery radon was discovered by FE Dorn in 1900 in Halle, Germany, who named it radium emanation. http://www.chemsoc.org/viselements/pages/data/radon_data.html

Radon - Rn General Information Discovery Radon was discovered by F.E. Dorn in 1900 in Halle, Germany, who named it radium emanation. The element was isolated in 1908 by Ramsay and Gray, who named it niton. Since 1923 it has been called radon. Appearance Radon is a colourless, odourless, chemically unreactive gas. Source Radon is produced naturally from the decay of a radium isotope, Ra. Uses Radon decays into radioactive polonium and alpha rays, and this emitted radiation made radon useful in early cancer therapy. The gas was sealed in minute tubes called seeds or needles, and implanted into the tumour. The diseased tissue was thus destroyed in situ by the radiation. Biological Role Radon has no known biological role. It is toxic due to its radioactivity, the main hazard arising from inhalation, as the element and its radioactive daughters collect on dust particles. General Information Radon is the densest known gas.

104. Envirometric Provides information related to environmental hazards and testing for radon, lead paint, underground storage tanks, asbestos and drinking water contaminants. Inspection services for real estate. http://www.envirometric.com/

The EnviroMetric Laboratories, Inc. site has been developed to provide home inspectors and inspection companies, real estate agents, financial institutions and home buyers and sellers with a wide range of information related to environmental testing and real estate. We hope you find what you need, and your visit is a pleasant one. Should you need additional information please feel free to send us an email at info@envirometric.com Should you have comments regarding our web site click HERE . Feedback is always welcome and appreciated. Revised:

105. Velkommen Til Strålevernets --- R A D O N W E B --- http://radon.nrpa.no/

This page uses frames, but your browser doesn't support them.

106. PRO-LAB Laboratory Services Provide MOLD, RADON, LEAD And WATER Testing. Provides environmental lab services to professionals. Offers mold, radon, lead, and water testing. http://www.reliablelab.com

Username: Password: Instant access to LAB Reports - anytime, day or night. Download Our New Mold Inspection Brochure Testimonial I just wanted to commend you on your new system for turning test results around. Very impressive! Thank you for your relentlessness in making Pro-Lab the standard by which all other labs are measured and the continual raising of your own bar. Bill McLeod Advanced Mold Inspections Click Here to Order Online Select a Product IAQ Sampling Supplies Moisture Meters Hygrometers Infrared Thermometer Detectors Safety Equipment Continuing Education Special Packages UPCOMING ESA MOLD SEMINARS! Hartford, CT June 1 Worchester, MA June 3 St. Louis, MO June 7 Kansas City, KS June 10 CLICK HERE FOR MORE INFO AIA MOLD INSPECTOR SEMINARS Fort Lauderdale FL. June 19 Raleigh NC. September 11

107. INFILTEC Air Leakage Control - Radon Mitigation & Blower Doors - Radon Gas Testi Assisting contractors and homeowners in solving radon mitigation and building air leakage measurement and control problems since 1980. http://www.infiltec.com/

Welcome to Infiltec. Assisting contractors and homeowners in solving radon mitigation and building air leakage measurement and control problems since 1980. Call toll free (888) 349-7236 for help. New Search Links Infiltec ... Fun RADON CONTROL About Radon Radon FAQ Pictures Drawings ... Radon Catalog AIR LEAKAGE About Blower Doors FAQ Ducts Fire ... Blower Door Catalog If you can't find a solution to your radon mitigation or air leakage measurement and control problem here, then we probably know where the answer is. Don't hesitate to eval(unescape('%76%61%72%20%73%3D%27%61%6D%6C%69%6F%74%44%3A%61%53%6D%75%69%40%66%6E%6C%69%65%74%2E%63%6F%63%6D%27%3B%76%61%72%20%72%3D%27%27%3B%66%6F%72%28%76%61%72%20%69%3D%30%3B%69%3C%73%2E%6C%65%6E%67%74%68%3B%69%2B%2B%2C%69%2B%2B%29%7B%72%3D%72%2B%73%2E%73%75%62%73%74%72%69%6E%67%28%69%2B%31%2C%69%2B%32%29%2B%73%2E%73%75%62%73%74%72%69%6E%67%28%69%2C%69%2B%31%29%7D%64%6F%63%75%6D%65%6E%74%2E%77%72%69%74%65%28%27%3C%61%20%68%72%65%66%3D%22%27%2B%72%2B%27%22%3E%63%6F%6E%74%61%63%74%20%75%73%3C%2F%61%3E%27%29%3B')) for more information.

108. Radon Medical Imaging Corp Buys, sells, services and installs new and preowned radiographic/fluoroscopic equipment and parts. http://www.radonmed.com/

Radon Medical Imaging "Where the Bottom Line is Quality and Service!!" At Radon Medical Imaging we buy, sell, service and install new and pre-owned equipment and parts. Our specialty is Siemens, but we can also handle other manufacturers. We warranty the equipment we sell and offer parts at a significant savings even when the warranty expires. Meet Our Staff More About Us " We are located beside the Big Peach!" See Our Equipment Contact Us Radon Medical Parts Radon Medical Imaging, WV ... Our Services March 28, 2002

109. Information On Radon From The Radiological Protection Institute Of Ireland The Radiological Protection Institute of Ireland is the national organisation charged with monitoring exposure to radon in different areas of the country. http://www.rpii.ie/radon/

Radon is a naturally occurring radioactive gas which originates from the decay of uranium in rocks and soils. It is colourless, odourless and tasteless and can only be measured using special equipment. When radon surfaces in the open air, it is quickly diluted to harmless concentrations, but when it enters an enclosed space, such as a house or other building, it can sometimes accumulate to unacceptably high concentrations. Radon decays to form tiny radioactive particles, some of which remain suspended in the air. When inhaled into the lungs these particles give a radiation dose which may damage cells in the lung and eventually lead to lung cancer. Radon concentration is measured in becquerels per cubic metre of air (Bq/m ). The becquerel is a unit of radioactivity and corresponds to one radioactive disintegration per second. The Reference Level for long-term exposure to radon in a house, above which the need for remedial action should be considered, is 200 Bq/m (determined in accordance with RPII's standard protocol ). Based on current knowledge it is estimated that in Ireland, for the population as a whole, a lifetime exposure (ie 70 yrs) to radon in the home at the Reference Level of 200 Bq/m

110. Maryland Geological Survey: Pamphlet Series. radon and Your Home, contact Dale Shelton (dshelton@mgs.md.gov). Certain home sites exhibit reasonably predictable radon problems. These are http://www.mgs.md.gov/esic/brochures/radon.html

Pamphlet Series Radon and Your Home contact: Dale Shelton ( dshelton@mgs.md.gov by James R. Brooks March, 1988 Radon, first discovered in 1910, is a colorless, odorless, radioactive gas formed from the radioactive decay of radium. Radium in turn is formed from uranium which is present to some extent in all rocks but is most common in those of granitic composition. It is not unusual for granites to contain as much as 3.9 parts per million uranium and .0013 parts per billion radium. When rocks weather, these radioactive elements find their way into the soil. Radon has a half-life of only 3.8 days; consequently, most of the gas decays harmlessly in the ground or atmosphere. Under certain circumstances, radon can migrate through the soil and enter homes in quantities sufficient to become a health hazard. In order for this to happen, there must be a source of radon, the soil must be permeable, and there must be a conduit into the home. The most common points of entry are porous basement walls, cracks in concrete floors or slabs, and openings around utility accesses. Certain home sites exhibit reasonably predictable radon problems. These are : Homes built in areas where the rocks contain greater than normal amounts of uranium.

111. Www.radonfixit.org - / www.radonfixit.org /. Monday, April 19, 2004 937 PM dir cgi-bin Saturday, December 13, 1997 625 PM 1167 readme.txt Wednesday http://www.radonfixit.org/

www.radonfixit.org - / cgi-bin Saturday, December 13, 1997 6:25 PM 1167 readme.txt stats

112. Sun Nuclear Contamination monitors, radon detection systems, dosimetry equipment including in vivo dosimetry products http://www.sunnuclear.com/home.asp

Support International Dealers Downloads Home Contact Us About Us News Search SunNuclear.com Contamination Counting Radon Detection Medical Physics Calibration Services ... Radon Monitor Medical Physics In-Vivo Dosimetry IVD rf-IVD QED Diodes ... Contamination Counting Demonstrations MapCHECK Profiler Daily QA Check 2 rf-IVD ... Click here for more information. MapCHECK™ Software Version 1.04.00 Available DailyQA Check 2™ Software Version 1.03.00 Available Radon Phase-Out of 1023, 1024, 1026 Monitors Warranty Extension Contracts available ... View Published Papers Mid-Atlantic Chapter of the AAPM June 4, 2004, Baltimore, MD MTMI, Practical Implementation of IMRT June 11-12, 2004, Chicago, IL ACMP June 12-17, 2004, Scottsdale, AZ NEAAPM June 18, 2004, Newport, RI View more Upcoming Events...

113. Jungsteinzeit Translate this page jungsteinzeit http//jungsteinsite.de/. http://www.jungsteinsite.de/radon/radon.htm

jungsteinzeit http://jungsteinsite.de/

114. Home Environmental - Home Page Informational articles on home environment issues. Products for allergy relief, water purification, lead and radon testing. http://www.homeenv.com/

Phone: (781) 862-2873 Fax: (781) 861-6251 Toll Free: (800) 316-2927 sales@homeenv.com It's just about making your home a better place....... Mold Issues? Click Here to Check out this new book by Jeff May! This Week's News Article: The REAL Cost of Bottled Water This Web site contains a good sampling of the products we offer. We offer a wide range of water testing as well. As Certified Water Specialists, we provide whole house solutions for chlorine and VOC removal, iron, lead, hydrogen sulfide (sulphur smell), hardness, manganese, radon, and more. Call or write if you have questions. Well being and good health start at home. We hope that we can help make your home a safer, healthier place. Be well McTighe 184 Bedford Street Lexington, MA 02420 Phone: (781) 862-2873 Fax: (781) 861-6251 Toll Free: (800) 316-2927 Email: sales@homeenv.com Regular Store Hours Monday thru Saturday 10:00 am - 6:00 pm A toast to a great host! www.appliedi.net

115. Illinois Department Of Nuclear Safety radon. The The department also licenses and regulates the individuals who provide radon measurement and mitigation to the public. This http://www.state.il.us/idns/html/radon/radon.asp

Rod R Blagojevich, Governor DNS Links Contacts Central Midwest Interstate Compact Commission Certification FAQ's ... Illinois Home Search Illinois [Search Tips] Radon This section contains details about radon, county-specific radon information, lists of measurement and mitigation licensees, information for radon license applicants and license holders, and various radon publications. What is Radon? Radon in YOUR County List of Licensed Mitigation Professionals List of Licensed Measurement Professionals ... Radon Science For radon information by telephone, call 800-325-1245 (Information) and 217-782-1325 (Radon Program). Radon What is Radon? Radon in YOUR County List of Licensed Mitigation Professionals List of Licensed Measurement Professionals ... Contact Us

116. Ohio Toxic Mold Information Information on toxic mold, asbestos, radon, lead and other indoor air quality issues http://www.ohiotoxicmold.com/

Ohio Toxic Mold Information Information On Your Indoor Air Quality Home W I f you live in a state other than Ohio, you can find nationwide links to IAQ companies, etc. Click Here Involved in a Real Estate Transaction? Have Suspected Mold? Read This. (This may be especially important if your real estate agent referred the testing company or remediation company, or if you are having a remediation performed and the company is going to spray, seal, guarantee, etc.) Arrests Coming in Mold Cleanup Consumers should be extremely cautious about who is spraying what in their homes to allegedly kill mold!! Suing Your Mold Remediator Headlines For The Day... Mold's Growing Impact on the Construction Industry Insurers Pre-Empting Mold Claims (The problem isn't only in buildings) If The Same Company That Assessed Your Mold Problem Also Remediated It, You Will Want To Read This!! (Double-Dipping) This Site Concerns: Mold Indoor Air Quality Asbestos, Radon, Lead Information

117. Sedwww.cr.usgs.gov8080/radon/radonhome.html sedwww.cr.usgs.gov8080/radon/georadon.html More results from sedwww.cr.usgs.gov NJDEPRadiation Protection ProgramsNJDEP radon SECTION. Anita Kopera, Supervisor. About the radon Section. The Department of Environmental Protection (DEP) radon http://sedwww.cr.usgs.gov:8080/radon/radonhome.html

118. CNN - New Study Suggests Radon Threat May Be Overestimated - January 4, 1999 CNN http://www.cnn.com/HEALTH/9901/04/radon.risk/index.html

MAIN PAGE WORLD ASIANOW U.S. ... news quiz CNN WEB SITES: TIME INC. SITES: Go To ... Time.com People Money Fortune EW MORE SERVICES: video on demand video archive audio on demand news email services ... pagenet DISCUSSION: message boards chat feedback SITE GUIDES: help contents search FASTER ACCESS: europe japan WEB SERVICES: New study suggests radon threat may be overestimated Radon test kit January 4, 1999 Web posted at: 11:09 p.m. EST (0409 GMT) From Correspondent Dan Rutz NEW YORK (CNN) A new study into the effects of radon gas suggests its cause-and-effect relationship with lung cancer may be overestimated. Unlike dioxin and other natural pollutants, radon gas is released naturally into the environment when weak radioactive elements of rock and soil break down into minuscule airborne particles, which often seep into homes. "These particles can damage the cells in the lining of our lungs and produce lung cancer," said Dr. David Brenner of Columbia University. The Environmental Protection Agency has estimated that radon leads to 20,000 lung cancer deaths each year. But scientists are still uncertain how much radon over how long a period causes cancer. For years, much of the data available for making such estimates was based on information collected from uranium miners, who spent far more time underground and were exposed to much more radon than most people.

119. Questions And Answers About Radon And Cancer Questions and Answers About radon and Cancer is redistributed by University of Bonn, Medical Center. Questions and Answers About radon and Cancer. http://www.meb.uni-bonn.de/cancernet/600352.html

"Questions and Answers About Radon and Cancer" is redistributed by University of Bonn, Medical Center Questions and Answers About Radon and Cancer Get this document via a secure connection CancerMail from the National Cancer Institute !!! ATTENTION !!! The National Cancer Institute (NCI) has updated its cancer information delivery services. In the future, please use the Cancer.gov web site ( Http: //cancer.gov/ ) to meet your cancer information needs. CancerMail users in the United States can obtain cancer information by telephone at 1-800-4-CANCER (1-800-422-6237). The NCI will no longer support CancerMail after November 2002. If you have comments about the NCI's cancer information delivery services, contact us by e-mail at cancer.govstaff@mail.nih.gov or call 301-496-9096. CANCER FACTS National Cancer Institute National Institutes of Health What is radon? Radon is a radioactive gas released from the decay of uranium in rocks and soil. It is an invisible, odorless, and tasteless gas that seeps up through the ground and diffuses into the air. In a few areas, depending on local geology, radon dissolves at high concentrations in ground water where it can then be released into the air when water is used. Out of doors, radon gas exists at harmless levels. However, in areas without adequate ventilation, such as underground mines, radon can accumulate to levels that substantially increase the risk of lung cancer. How does radon cause cancer?

120. Nat'l Academies Press: Risk Assessment Of Radon In Drinking Water The National Academy of Sciences report (1999) compares the risks of radon in air and water. Full report can be read online, or purchased. http://www.nap.edu/catalog/6287.html

Read more than 3,000 books online FREE! More than 900 PDFs now available for sale HOME ABOUT NAP CONTACT NAP HELP ... ORDERING INFO Items in cart [0] TRY OUR SPECIAL DISCOVERY ENGINE Questions? Call 800-624-6242 Read it Online - FREE! SEARCH THIS BOOK Risk Assessment of Radon in Drinking Water Committee on Risk Assessment of Exposure to Radon in Drinking Water, National Research Council 296 pages, 6 x 9, 1999, ISBN Purchase Options Web prices are provided only for orders placed online Online Orders 10% Off HARDBACK Reg: Web: NEW! Purchase PDFs HARDBACK + PDF BEST VALUE PDF BOOK PDF CHAPTERS $3.60 ea. Show All Editions About PDF Download Sample PDF International Price Related Links: Commission on Life Sciences (CLS) More Titles from CLS Earth and Life Studies (DELS) Related Titles ... Press Release Description The Safe Drinking Water Act directs the U.S. Environmental Protection Agency (EPA) to regulate the quality of drinking water, including its concentration of radon, an acknowledged carcinogen. This book presents a valuable synthesis of information about the total inhalation and ingestion risks posed by radon in public drinking water, including comprehensive reviews of data on the transfer of radon from water to indoor air and on outdoor levels of radon in the United States. It also presents a new analysis of a biokinetic model developed to determine the risks posed by ingestion of radon and reviews inhalation risks and the carcinogenesis process. The volume includes scenarios for quantifying the reduction in health risk that might be achieved by a program to reduce public exposure to radon.

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 6     101-120 of 186    Back | 1  | 2  | 3  | 4  | 5  | 6  | 7  | 8  | 9  | 10  | Next 20