81. Welcome To Radon-Ease, Inc. 804598-5267 Toll Free 866-282-6444. P.O. Box 6325 Richmond, VA 23230 E-mail info@radonease.com Learn more about radon at The EPA radon Website. Please report any problems http://radonease.com/

Click HERE to view their stories Toll Free P.O. Box 6325 Richmond, VA 23230 E-mail: info@Radonease.com Learn more about Radon at The EPA Radon Website Please report any problems or broken links to webmaster@radonease.com Yes Virginia, There Is A Radon Problem (but only if you ignore it!) One in four homes in Central Virginia has elevated radon levels as compared to one in fifteen nationally. This is an alarming fact that is not going away. Since this odorless gas causes lung cancer second only to smoking, the only smart thing to do to protect your family, is to test your home to see if you are at risk. Testing is easy and inexpensive. Radon-Ease, Inc. uses the latest computerized short-term testing procedures and equipment for maximum accuracy and integrity with minimal turnaround time. Within 5 minutes the radon monitor is placed in your home and left to take hourly readings. When the monitor is retrieved at least 2 days later, the results are ready. You will know if you have a radon problem. While Radon-Ease does not offer radon mitigation, elevated radon levels are easily correctable with remediation which also typically controls moisture, mold and mildew. This is an added benefit for those who suffer from these allergies. The cost of remediation depends on how your home was built and other factors. Most homes can be fixed for about the same cost as other common home repairs, like painting or having a new hot water heater installed. The average cost ranges from $1000.00 to about $2000.00.

82. Gemmill Associates- Professional Radon Certification Training And Education, Rad Professional radon certification training and education, radon instrument calibration, nuclear science and radon consulting services. http://www.rpmwebworx.com/gemmilllabs/

Professional Radon Certification Training and Education Granite Radiation Testing Services Radon Instrument Calibration Nuclear Science and Radon Consulting Services Phone: 1-800-846-9893 Welcome The firm of Gemmill Laboratories offers thirty years of technical management experience in the nuclear science field. More specifically, Wayne J. Gemmill, owner and award winning senior scientist brings to the company over twenty years of experience in product development of radiochemicals along with thirty-one U.S. patents and technical publications. Gemmill Laboratories has also acquired more than twenty years of experience in all aspects of radon science representing all testing and measurement protocols. Quality control procedures and calibration methodologies for radon testing equipment and radon instrumentation have been developed and implemented by Gemmill Laboratories. Radon instrument calibration services at our on-site laboratory and radon chamber are available to your company. By bringing all the aforementioned expertise into the business, and applying that scientific knowledge, we have recently developed a testing protocol that will technically assess the real radiation hazards of granite countertops, tables and floors installed in homes and business throughout North America.

83. VSI Radon Reduction Corp. - Home Of Illinois Largest Radon Reduction Contractors One of Illinois largest radon reduction contractors. Find radon testers in Illinois and Wisconsin. Get EPA information on radon testing and mitigation. http://www.radongas.com

Home About VSI What Is Radon Testing For Radon ... Links Illinois largest radon reduction company with locations in DuPage, Lake/McHenry Counties Servicing the greater Chicagoland and Rockford area for over 23 years Did you know? Radon gas is the second leading cause of lung cancer. Radon is a radioactive gas. Any home can have radon. There is no such thing in Illinois as "we don't have radon in this area". VSI Radon Reduction Corp is the largest Radon Mitigation company in Illinois. VSI has been in business since 1987 and has installed well over 12,000 radon reduction systems. * Radon is estimated to cause about 21,000 lung cancer deaths per year, according to EPA's 2003 Assessment of Risks from Radon in Homes (EPA 402-R-03-003) . The numbers of deaths from other causes are taken from the Centers for Disease Control and Prevention's 2005-2006 National Center for Injury Prevention and Control Report and 2006 National Safety Council Reports. Inside our web site you will find EPA and Illinois radon information as well as our own insight from thousands of successful radon mitigation systems. Pictures of testing devices , radon reduction systems and our Virtual Radon System Photos where you can click on the area of the mitigation system you want to see. You will probably find more information than you're looking for, so we broke it down into easy to find sections and you can return to this page at anytime just by clicking on our logo at the top or bottom of each page.

84. Consumer's Guide To Radon Reduction | Radon | US EPA US EPA online publication on methods for reducing radon levels in homes. http://www.epa.gov/radon/pubs/consguid.html

Jump to main content or area navigation Advanced Search What are you looking for? Learn the Issues About EPA Contact Us Radon (Rn) You are here: EPA Home Air Indoor Air Radon ... Publications Consumer's Guide to Radon Reduction Consumer's Guide to Radon Reduction How to Fix your Home Contents Overview Introduction How Radon Enters Your Home Radon is a Cancer-Causing Radioactive Gas ... What to Look for in a Radon Reduction System Installation and Operating Costs Radon Reduction Techniques Home Foundation Types Basement and Slab-on-Grade Homes Crawlspace Houses Other Types of Radon Reduction Methods Checking Your Contractor's Work Living in a Home with a Radon Reduction System Maintaining Your Radon Reduction System Remodeling Your Home After Radon Levels Have Been Lowered Buying or Selling a Home? Radon in Water Installation and Operating Cost Table For Further Information ... PDF Version (20 pp., 2.38 M, about PDF Overview Reduce Radon Levels In Your Home Radon is the leading cause of lung cancer for non-smokers and the second leading cause of lung cancer in the general population. The Surgeon General and EPA recommend testing for radon and reducing radon in homes that have high levels. Fix your home if your radon level is confirmed to be 4 picocuries per liter, pCi/L, or higher. Radon levels less than 4 pCi/L still pose a risk, and in many cases may be reduced. If you smoke and your home has high radon levels, your risk of lung cancer is especially high. Indoor Environments Division (6609J) EPA 402K-10/005 September, 2010

85. Radon Mitigation Systems, LLC - RadonMitigationSystems.com - Home EPA-approved radon mitigation firms in South Dakota offering services to home owners, realtors and home inspectors. http://RadonMitigationSystems.com

var accordion_page1 = new YHAccordion ('page1', 300, 0, 'click', true, true, false); Radon Mitigation Systems, LLC We Save Lives Home About Radon Mitigation Another Option ... Contact Us Superior Radon Mitigation In the Sioux Falls Region Radon Mitigation Systems, LLC 4800 E. Tigerlilly St Sioux Falls, SD 57110 About Radon Mitigation Services Our work is guaranteed. We believe in providing you with the best equipment and the best installation for your home. The final product looks clean and neat, and, more importantly, it works properly to offer you piece of mind. We are licensed, bonded, and insured, and we offer free estimates without obligation. Feel free to e-mail or call us if we can be of service to you. Licensed, Bonded, and Insured We are a Certified Radon Mitigation Provider with the major Radon Mitigation organizations: NEHA NRSB EPA-RCCP AARST Description of our Services The following is a list the primary services we offer. You can learn more about Radon mitigation and how these services relate to your Radon problem right here at our website. You may wish to download our brochure from our Useful Links page, or

86. Radon Mitigation | Radovent | Radon System Supplier of radon reduction systems with a national network of installers. Provides radon information and consulting and offers business opportunities. http://radovent.com

Name Email Notes Address Phone At we're dedicated to helping families and businesses reduce the risk of exposure to harmful radon gas. This dedication drives us to design the most efficient radon mitigation systems while maintaining the highest standards of quality, aesthetics and professionalism. Our qualified technicians have successfully installed thousands of radon mitigation systems nationwide. No matter how complex the installation, or how high the levels of radon; we guarantee a solution. Residential Homes Real-Estate Professionals Results Guaranteed in Writing 10 -Year Transferable Radon System Warranty Friendly, Pre-Screened Technicians 100% Post-Install Cleanup Confirmatory test kits provided with service more... LISTEN TO WHAT OUR CUSTOMERS HAVE TO SAY... "We were very pleased with the service we received from RADOVENT®. We were treated with great respect and the work was flawless. Now I’m at levels below 1.0 pCi/L." - Mica Jones, Homeowner " was responsive and helpful throughout the whole process. And, best of all, they delivered results and cleaned up after the job was done." -

87. Radon Mitigation Standard Of Practice | Radon | US EPA EPA publication providing uniform design and installation standards to radon mitigation contractors for residential buildings three stories or less in height. http://www.epa.gov/radon/pubs/mitstds.html

Jump to main content or area navigation Where should we search? All EPA This Area Advanced Search What are you looking for? Learn the Issues About EPA Contact Us Radon You are here: EPA Home Air Indoor Air Radon ... Publications Recommended Residential Radon Mitigation Standard of Practice Recommended Residential Radon Mitigation Standard of Practice EPA recommends the ASTM E2121-09 Standard Practice for Radon Mitigation Systems in Existing Low-Rise Residential Buildings * for residential radon mitigation. The Agency initially recognized this standard in 2003 as the most appropriate guide to reducing radon in homes as far as practicable below the national action level of 4 pCi/L in indoor air. A single free printed copy of ASTM E 2121-09 is available from EPA upon request. Use EPA’s document number ( 402-K-07-007 ) when ordering from the National Service Center for Environmental Publications . *ASTM E2121-09; November 9, 2009. EPA reprints E2121-09 with permission from ASTM. Copies of E2121-09 may be purchased from ASTM International , or from the American National Standards Institute *American Society for Testing and Materials International, or ASTMI; an American National Standards Institute, or ANSI, approved consensus standard. Note: As of May 2006, EPA's Radon Mitigation Standards (EPA 402-R-93-078, Revised April 1994) is no longer recommended or available.

88. Radon, Radon Gas Test, Radon In UK, Radon Gas Testing, UK Radon Maps,Radon Detec Provide information on radon gas, UK radon maps and fast-track radon gas testing kits. http://www.alphalab.co.uk

Home Contact Us Overview Radon Gas In Buildings How To Test for Radon Gas Property Buyers - FAQ's Property Sellers - FAQ's ... Buy Long-Term Three Month Test Thank you for visiting AlphaLab, we provide information on radon gas, UK radon maps and fast-track radon gas testing kits through our 100% secure encrypted e- commerce shopping site. All radon test kits have been fully certified by the Central Laboratory For Radiological Protection or Health Protection Agency (HPA) and AlphaLab have undergone rigorous testing procedures to ensure all best practices are observed and your UK radon gas test results are fully valid and highly accurate. New Study Links High Levels Of Radon Gas To Childhood Leukaemia More 48 Hr Radon Test Three Month Test 7-Day Test An express 48 Hr short-term radon screening test for property buyers and sellers with fast-track analysis and reporting.

89. Radon NC Charlotte Radon Specialist Designs custom systems to mitigate radon gas in residential homes and condominiums in the area of Charlotte, North Carolina, USA. http://RadonNC.com

MM_preloadImages('images/death_chart_small.jpg'); RadonNC Charlotte's Radon Specialists Home F.A.Q. All About Radon Our Services Testimonials ... About Us home Getting Rid of Radon: Your Family's Health Depends on it! Twenty years ago, we had no idea that an invisible, odorless, tasteless gas lingered in our homes, compromising our health and putting our families lives at risk. Now that we know about the dangers of radon gas, we have a fighting chance of stopping its harmful and deadly effects. What is it and how does it get into our lungs? Radon is a part of nature : it is a gas that is released when rocks and soil decay, so it is continuously rising up through the ground. It finds its way into our homes through the foundations, crawl spaces and openings around pipes, cracks, and wires in the lower portions of our houses. Every time we turn on heat or air conditioning, radon gas at the ground level is then sucked up higher into our homes, spreads throughout our home's inner air, and as we breathe, the gas particles settle into our lungs. Current technology can't rid our air of radon 100%, but it does allow us to reduce the levels of radon in our indoor air to levels low enough to keep us out of danger. Why should you choose RadonNC?

90. Radon Defense Solutions radon Dangers and radon Testing and Removal Systems. what is radon and how to find out if your homes has too much radon. http://radondefensesolutions.com

FAIL (the browser should render some flash content, not this). Radon Defense Solutions-Certified, Bonded and Insured Member of the National Radon Safety Board (NRSB) Member American Association of Radon Scientists and Technologists (AARST) Serving the Northern Virginia area: Stafford Fredericksburg Spotsylvania Caroline Prince William Fauquier King George Radon Gas: The 2nd leading cause of Lung Cancer according to the EPA Almost every home in Virginia has radon gas escaping through the foundation into the basement....the question you need the know is how much gas is your family breathing into to their lungs At Radon Defense Solutions, we test and remove Radon Gas from your home in accordance with EPA Guidelines. Radon is a radioactive gas.

91. Periodic Table Of Elements: Radon - Rn (EnvironmentalChemistry.com) Atomic structure, properties, and table of nuclides. http://environmentalchemistry.com/yogi/periodic/Rn.html

@import url("http://envirochem.us/css/Main20100222.css"); @import url("http://envirochem.us/css/PTOE20100128.css"); @import url("http://envirochem.us/css/screen20100221.css"); Environmental Chemistry Hazardous Materials News, Careers Skip to page content Skip to site menu on this page Periodic Table of Elements Element Radon - Rn Comprehensive data on the chemical element Radon is provided on this page; including scores of properties, element names in many languages, most known nuclides of Radon. Common chemical compounds are also provided for many elements. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one studies. Using the "Periodic Table of Elements Quick Navigation" graphic at the bottom of the sidebar menu, one can quickly jump from chemical element to chemical element. Radon Menu Radon Page One Overview of Radon Radon's Name in Other Languages Atomic Structure of Radon Chemical Properties of Radon ... Potential Parent Nuclides Overview of Radon Atomic Number Group Period Series: Noble Gasses Radon's Name in Other Languages Latin: Radon Czech: Radon Croatian: Radon French: Radon German: Radon - r Italian: Radon Norwegian: Radon Portuguese: Russian: Spanish: Swedish: Radon Atomic Structure of Radon Atomic Radius Atomic Volume mol Covalent Radius ... Cross Section a barns Crystal Structure Cubic face centered Electron Configuration: p p d p d f p d p Electrons per Energy Level Shell Model Ionic Radius Filling Orbital Number of Electrons (with no charge):

92. Chemical Elements.com - Radon (Rn) Basic information, atomic structure, and table of isotopes. http://www.chemicalelements.com/elements/rn.html

Home About This Site Comments Help ... Window Version Show Table With: Name Atomic Number Atomic Mass Electron Configuration ... Crystal Structure Element Groups: Alkali Metals Alkaline Earth Metals Transition Metals Other Metals ... Citing This Page Basic Information Name: Radon Symbol: Rn Atomic Number: Atomic Mass: (222.0) amu Melting Point: Boiling Point: Number of Protons/Electrons: Number of Neutrons: Classification: Noble Gas Crystal Structure: Cubic Density @ 293 K: 9.73 g/cm Color: colorless Atomic Structure Number of Energy Levels: First Energy Level: Second Energy Level: Third Energy Level: Fourth Energy Level: Fifth Energy Level: Sixth Energy Level: Isotopes Isotope Half Life Rn-211 14.6 hours Rn-212 24.0 minutes Rn-217 0.6 milliseconds Rn-218 35.0 milliseconds Rn-219 3.96 seconds Rn-220 55.61 seconds Rn-222 3.82 days Facts Date of Discovery: Discoverer: Fredrich Ernst Dorn Name Origin: From radium Uses: treatment of cancer Obtained From: decay of radium Related Links Note: The external links below are not a part of this site and their content is not the responsibility of this site From The U.S. Environmental Protection Agency

93. Radon (Rn) - Chemical Properties, Health And Environmental Effects Physical data, chemical properties, health and environmental effects. http://www.lenntech.com/Periodic-chart-elements/Rn-en.htm

Home Periodic table Elements Radon Radon - Rn Chemical properties of radon Health effects of radon Environmental effects of radon Atomic number Atomic mass (222) g.mol Electronegativity according to Pauling unknown Density g.cm at 20°C Melting point - 71 °C Boiling point - 62 °C Vanderwaals radius unknown Ionic radius unknown Isotopes Electronic shell [ Xe ] 4f Energy of first ionisation 1037 kJ.mol Discovered Fredrich Ernst Dorn in 1898 Radon Radon is colorless at standard temperature and pressure and it is the most dense gas known. At temperature below it's freezing point is has a brilliant yellow phosphorescence. It is chemically unreactive, it is highly radioactive and has a short half life. Applications Radon was sometimes used in hospitals to treat cancer and was produced as needed and delivered in sealed gold needles. Radon is used in hydrologic research, because of it's rapid loss to air. It is also used in geologic research and to track air masses. Radon in the environment Radon can be found in some spring water and hot springs. There is anyway a detectable amount of radon in the atmosphere. Radon collects over samples of radium 226 at the rate of around 0.001 cm3/day per g of radium. Health effects of radon Radon occurs in the environment mainly in the gaseous phase. Consequently, people are mainly exposed to radon through breathing air.

94. Radon [Rn] [86] - Chemical Element Datasheet - Periodic Table Of The Elements - Electronic, thermal, and steric data along with an isotope table. http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/86.html

95. Integrated Environmental Management, Inc. - IEM - Radioactivity Basics (Radon) Informative primer on radon, its progeny, measurement and risks. Extensive information on radioactivity and radiation, exposure and risks. http://www.iem-inc.com/prrn.html

96. Center For Environmental Research & Technology | Subsidiary Of CVC Inc, Serving Provides certification and continuing education classes that meet National radon Proficiency Program. Located in Colorado Springs, CO. http://certi.info/

Search this site: Subsidiary of CVC Inc, serving the radon industry since 1986 Course Catalog Entry Level Courses CE Courses Conduct Course Work ... Radon Radio Theatre Supporting the Radon Industry with Quality Educational Programs Since 1986 Purchase Courses Entry Level Courses CE Courses Consumer Information Health Effects of Radon ... Canadian Program Site Announcements AARST Train the Speaker Course New CE Courses Guam Entry Level Courses Environmental Education Without Boundaries Individuals just entering the field as well as radon professionals with either limited or extensive experience can find courses to fit their needs to become certified as well as meet their needs for continuing education. All courses are home study that can be completed at your own pace. Technical support for coursework as well as answers to challenges in the field . Impressive success rates for CERTI students passing radon certification exams. Multiple User discounts for course materials. Read more AARST Train the Speaker Course Submitted by Site Announcements on Mon, 08/02/2010 - 21:31 CERTI is proud to present a Radon Train the Speaker course at the AARST 2010 Conference.

97. Www.radonmichigan.com Provides radon reduction and testing services in most of Michigan. Free estimates and same day service. http://www.radonmichigan.com

98. Pylon Electronics Inc. - Radon Testing, Calibration Instrumentation Services, Ra Canadian designer and manufacturer of radon and thoron measurement systems, sources and standards. http://www.pylonelectronics.com/

Welcome to Pylon Electronics Inc. Radon testing, Calibration Instrumentation Services, Radon Detection and Thoron Measurement. Providing Quality Calibration Services and Specialty Products to meet Industry Measurement, Testing, and Management System Requirements Calibration Services Products Comprehensive Test Equipment Calibration and Repair Services Three Facilities to Support You On-Site Services Factory Authorized Service Centers Controlled Goods Registered Accredited Calibrations Our Instrument Manufacturing Division is a world leader in Radon monitoring products providing precise and reliable results. Monitors, Detectors, sources and more ... Application Support CNSC Licensed Controlled Goods Registered Canadian owned and operated.

99. Benner GeoTech - Radon Mitigation Specialists In Maryland And The Washington DC radon mitigation services for the Baltimore/Washington, DC area. http://www.bennergeotech.com/

Home About US Reducing Radon Cost ... Contact US Benner GeoTech specializes in the design and installation of radon mitigation (reduction) systems in Maryland, Virginia, and Washington DC. We believe in quality and customer satisfaction. We will come to your home at your convenience to determine whether radon levels are in the unsafe range, and if so we will work with you to develop a functional yet architecturally appealing plan. We strive to install systems that blend and work with your existing home decor. There is no compromise where your safety is concerned. SURGEON GENERAL HEALTH ADVISORY: Indoor radon gas is a national health problem. Radon causes thousands of deaths each year. Millions of homes have elevated radon levels. Homes should be tested for radon. When elevated levels are confirmed, the problem should be corrected. Are YOU at risk? As you can see, most of Maryland is in the moderate to high risk area. Radon is the #2 cause of lung cancer in this country today. Don't take chances with your health...have your home inspected by competent professionals today. by Benner GeoTech - Radon Mitigation Specialists

100. Hera Tech, Inc. Provides environmental testing and abatement services in New Jersey, including radon, lead and water testing. http://www.heratech.com

Home Services Clients Qualification ... Useful Links Welcome To Hera Tech Inc. Radon Environmental Laboratories Welcome To Hera Tech Inc. Radon Environmental Laboratories NJ State Certified Radon Measurement and Mitigation Specialist NAWT Certified Founded in 1989 by Dr. Subash Rashat, Hera Tech, Inc. is a New Jersey State certified company which offers you a wide range of environmental testing and mitigation services. Hera Tech, Inc. has a highly skilled and qualified staff using state of the art instruments to perform extensive testing. Hera Tech, Inc. works with homeowners, realtors, schools and municipalities in various areas in order to provide a safe living environment. NJ State Certified Radon Measurement specialist NJ State Certified Radon Mitigation Specialist Member of North American Radon Association (NARA)

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