121. Radon Program What is radon? Why worry about radon? How does radon enter my home? Can the radon in my drinking water contribute to my risk for developing lung cancer? http://www.dph.state.ct.us/BRS/radon/radon_program.htm

Text Only What is Radon? Why worry about radon? How does radon enter my home? ... Indoor Radon Potential Map of Connecticut (1997) Please Note: Some files are in Portable Document Format (pdf). You will need Adobe Acrobat Reader in order to view and print the information. Download Generic Information Buyers/Sellers Information Realtor Information ... http://www.aarst.org/ (AARST) http://www.crcpd.org/ (CRCPD) http://www.epa.gov/ (EPA) http://www.epa.gov/region01 (EPA) http://www.neha.org/ (NEHA) http://www.nrsb.org / (NRSB) http://www.lungusa.org/connecticut (ALA) Radon Professional Information National Environmental Health Association Measurement, mitigation, laboratories and a checklist for consumers National Radon Safety Board Measurement, mitigation and laboratories

122. Radon Data tables and historic information. http://www.scescape.net/~woods/elements/radon.html

R ADON General States Energies Reactions ... History General Name Radon Symbol Rn Atomic number Atomic weight Density @ 293 K 0.00973 g/cm3 Atomic volume 50.5 cm3/mol Group Noble Gas Discovered Back to the top States State (s, l, g) g Melting point 202.2 K Boiling point 211 K Heat of fusion 2.890 kJ/mol Heat of vaporization 16.40 kJ/mol Back to the top Energies 1st ionization energy 1037 kJ/mole Electronegativity 2nd ionization energy kJ/mole Electron affinity kJ/mole 3rd ionization energy kJ/mole Specific heat 0.09 J/gK Heat atomization kJ/mole atoms Back to the top Shells Electron configuration [Xe] 4f14 5d10 6s2 6p6 Minimum oxidation number Maximum oxidation number Minimum common oxidation number Maximum common oxidation number Back to the top Structure Color colorless Uses earthquake prediction Toxicity Hardness mohs Characteristics Radioactive,air pollutant Back to the top Reactions Reaction with air none Reaction with 6M HCl none Reaction with 6M HCl none Reaction with 15M HNO3 none Reaction with 6M NaOH none Back to the top Other Forms Number of isotopes Hydride(s) Oxide(s) Chloride(s) Back to the top Radius Ionic radius (2- ion) pm Ionic radius (1- ion) pm Atomic radius pm Ionic radius (1+ ion) pm Ionic radius (2+ ion) pm Ionic radius (3+ ion) pm Back to the top Conductivity Thermal conductivity J/m-sec-deg Electrical conductivity 1/mohm-cm Polarizability 5.3 A^3

123. ATSDR - Public Health Statement: Radon OnLine radon ToolkitEnvironmental Instruments Canada Inc. http//www.eic.nu, radon Toolkit v1.0. Standard disclaimer applies. Table of Contents. radon Source Term Calculations http://atsdr1.atsdr.cdc.gov:8080/ToxProfiles/phs9023.html

Search Index Home Glossary ... Contact Us CONTENTS What is radon? How might I be exposed to radon? How can radon enter and leave my body? How can radon affect my health? What levels of exposure have resulted in harmful health effects? Is there a medical test to determine whether I have been exposed to radon? What recommendations has the federal government made to protect human health? Where can I get more information? References RELATED RESOURCES ToxFAQ Public Health Statement Toxicological Profile A-Z Index A B C D ... J  K L M N O ... P Q  R S T U ... X  Y  Z ATSDR RESOURCES ToxFAQs ToxFAQs Public Health Statements Toxicological Profiles ... Division of Toxicology December 1990 Public Health Statement for Radon CAS# This Public Health Statement is the summary chapter from the Toxicological Profile for radon . It is one in a series of Public Health Statements about hazardous substances and their health effects. A shorter version, the ToxFAQs This Statement was prepared to give you information about radon and to emphasize the human health effects that may result from exposure to it. The Environmental Protection Agency (EPA) has identified 1,177 sites on its National Priorities List (NPL). Radon has been found above background levels at five of these sites. However, we do not know how many of the 1,177 NPL sites have been evaluated for radon. As EPA evaluates more sites, the number of sites at which radon is found may change. The information is important for you because radon may cause harmful health effects and because these sites are potential or actual sources of human exposure to radon.

124. Femto-Tech, Inc. radon and tritium detection instrumentation for home inspectors and radon professionals. http://www.femto-tech.com/

Home Products Purchase Options Contact Us Welcome to Femto-Tech Welcome Femto-Tech, Inc. takes pride in the role it has in the field of radiation detection. Starting in the government arena, then moving to the commercial and private sectors, we have established ourselves as a premier manufacturer of quality radiation detection instrumentation. Over the past 15 years we have produced thousands of highly respected instruments for use in the fields of tritium and radon detection. Providing excellent quality, service and support for our customers has enabled us to become recognized and used by many as an industry standard. We stay current on issues dealing with the standards and protocols of our industry and attempt to update our customers. If you don't find the information you need on this site, please contact us for additional assistance. Facts These devices have been designed to meet the needs of home inspectors and radon professionals who need reliable radon measurements, but also need additional information to assist them in interpreting results and detecting possible tampering by occupants. Professional radon mitigation contractors will also find this device ideal for investigating unusual radon entry phenomena in homes and commercial buildings. Deployment of a CRM during and after the installation of a mitigation system will provide quick results of the success of the approach.

125. RADON MAINE radon HOMEPAGE. IMPORTANT CONSUMER NOTICE REGARDING SEALANTS. ò ADDITIONAL radon INFORMATION ò. How to Become a Maine Registered radon Service Provider. http://www.state.me.us/dhs/eng/rad/hp_radon.htm

State Agencies Web Policies My Maine.gov Email this page DEPARTMENT OF HUMAN SERVICES BUREAU OF HEALTH DIVISION OF HEALTH ENGINEERING RADIATION CONTROL PROGRAMS Last Update: RCP Home Bureau of Health Health Engineering MAINE RADON HOMEPAGE IMPORTANT CONSUMER NOTICE REGARDING SEALANTS REGISTERED RADON COMPANIES Registered Laboratories Providing Air and Water Radon Analysis Registered Air and Water Mitigation Contractors Registered Air and Water Testing Companies ADDITIONAL RADON INFORMATION How to Become a Maine Registered Radon Service Provider Radon Mitigation System and Cold Weather Advisory Radon Testing/General Information Water Information ... Maine Citizen's Guide to Radon The Radiation Control Program provides, free of charge, information packets containing information on different aspects of radon. We also register radon service providers (laboratories, contractors, and testing companies) that have a proven level of training. FOR ADDITIONAL INFORMATION CALL THE MAINE BUREAU OF HEALTH, RADIATION CONTROL PROGRAM AT: Hits since 9/5/2001:

126. The LEW Corporation - The Environmental CompanySM Full service environmental company specializing in lead based paint, asbestos, underground storage tanks, soil contamination, environmental site assessments, indoor air quality and radon. Serving New Jersey, Pennsylvania, New York, Maryland and Delaware. http://www.lewcorp.com

LEW C orporation WE'VE MOVED Click here for our new location The Environmental Company SM (click on the images to enter the site) (click on the images to enter the site) (click on the image to enter the site)

127. Radon In Your Home WHAT YOU SHOULD KNOW. Last updated 4/2/2002. WHAT IS radon? WHERE CAN radon BE FOUND? radon can be found all over the United States. http://www.deq.state.la.us/laboratory/rpradon.htm

WHAT YOU SHOULD KNOW Last updated: 4/2/2002 WHAT IS RADON? Radon is a radioactive gas which comes from the decay of naturally-occurring uranium in soil, rock and water and can get into the air you breathe. You can't see radon. You can't smell it or taste it either. But it could be a problem if it gets into your home. In fact, the Surgeon General has warned that radon is the second leading cause of lung cancer in the United States today. Only smoking causes more lung cancer deaths. WHERE CAN RADON BE FOUND? Radon can be found all over the United States. It can get into any type of buildings - homes, offices, and schools - and build up to unsafe levels. But you and your family are most likely to get your greatest exposure at home. That's where you spend most of your time. WHEN DOES RADON BECOME A HEALTH HAZARD TO MY FAMILY? Your family's risk of developing lung cancer from radon depends on the average annual level of radon in your home and the amount of time you spend there. The longer your exposure to radon, the greater the risk, and the risk is much greater for smokers. The amount of radon in the air is measured in "picocuries of radon per liter of air," or "pCi/l." EPA recommends that you should fix your home if the results of one long-term test or the average of two short-term tests

128. MacNeil Environmental, Inc. Offers information about this environmental consulting company dealing with mold, asbestos, lead, carbon monoxide, and radon. http://www.mac-env.com/

MacNeil Environmental Inc. This website requires frames.

129. Radon - Wikipedia, The Free Encyclopedia radon. From Wikipedia, the free encyclopedia. The wiki will be locked starting in a few minutes. radon, Rn, 86. http://en.wikipedia.org/wiki/Radon

Main Page Recent changes Edit this page Page history ... Printable version Not logged in Log in Help Other languages: Dansk Deutsch Nederlands Svenska Radon From Wikipedia, the free encyclopedia. Astatine Radon Xe Rn Uuo Full table General Name Symbol Number Radon, Rn, 86 Chemical series Noble gases Group Period ... K , NA Appearance colorless Atomic properties Atomic weight amu Atomic radius (calc.) no data (120) pm Covalent radius 145 pm van der Waals radius no data Electron configuration Xe f d ... e 's per energy level Oxidation states Oxide (unknown) Crystal structure Cubic face centered Physical properties State of matter gas ( nonmagnetic Melting point K F ... Boiling point 211.3 K (-79.1 °F) Molar volume m /mol Heat of vaporization ... Heat of fusion 2.89 kJ/mol Vapor pressure NA Speed of sound NA Miscellaneous Electronegativity no data Specific heat capacity J/(kg*K) Electrical conductivity no data Thermal conductivity W/(m*K) st ionization potential 1037 kJ/mol Most stable isotopes iso NA half-life DM ... DP Rn h Epsilon Alpha At ... Po Rn d Alpha Po SI STP are used except where noted. Radon is a chemical element in the periodic table that has the symbol Rn and atomic number 86. A

130. CNN - Household Radon Risk Low, Study Shows - January 18, 1999 CNN http://www.cnn.com/TECH/science/9901/18/radon.enn/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: Household radon risk low, study shows For the past two decades, researchers have been warning of the dangers from alpha radiation given off by radon, a gas that bubbles into homes from uranium-bearing rocks January 18, 1999 Web posted at: 11:30 AM EST By Environmental News Network staff (ENN) Scientists performing controlled studies on mouse cells at Columbia University have released a study that shows homeowners exposed to radon gas may be less at risk for developing lung cancer than previously thought. For the past two decades, researchers have been warning of the dangers from alpha radiation given off by radon, a gas that bubbles into homes from uranium-bearing rocks. The National Academy of Sciences puts the U.S. death toll at 18,000 a year, while the National Radiological Protection Board calculates Britain's death toll as 1,800 a year. However, according to an article in the Jan. 16 edition of New Scientist Magazine, these estimates, which make radon second only to smoking as a cause of lung cancer, are calculated largely by extrapolating from deaths among uranium miners whose exposures to radon were 10 to 100 times higher. Researchers have struggled to find real effects among the general population.

131. AZGSradoni Nformation radon Information. AZGS OnLine radon Publications. radon Gas - A Geologic Hazard in Arizona, by JE Spencer, 1992, Down-to-Earth Series 2. radon Links. http://www.azgs.state.az.us/radon_info.htm

Radon Information AZGS On-Line Radon Publications Radon Gas - A Geologic Hazard in Arizona , by J.E. Spencer, 1992, Down-to-Earth Series 2. Uranium and Radon in Southeastern Arizona , by J.T.Duncan and J.E. Spencer, 1993 (From AZGS Bulletin 199, Radon In Arizona) Radon in Arizona Water Does radon in water pose a danger to those who use evaporative coolers? Radon Links Arizona Radiation Regulatory Agency EPA Radon Home Page U.S. Geological Survey Radon Home Page Radon - National Safety Council ... Radon Risk in Drinking Water - National Research Council (National Academy of Science) Risk Assessment of Radon in Drinking Water - National Research Council (National Academy of Science) Radon in Drinking Water - EPA Drinking Water Priority Rulemaking: Radon - EPA's proposed limits for radon in water. Validity of the Linear No-Threshold Theory of Radiation Carcinogenesis at Low Doses , by Bernard L. Cohen, University of Pittsburgh (A critique of the model used by EPA to estimate risks from low-level radon exposure)

132. Natural Radioactivity The Radiation Information Network (Idaho State U). Primordial, cosmogenic and manmade radiation sources. radon accounts for 56% of the total effective dose to people in the US. Radioactivity in soil, building materials, and human bodies. http://www.physics.isu.edu/radinf/natural.htm

Radiation Information Network's Radioactivity in Nature Our world is radioactive and has been since it was created. Over 60 radionuclides (radioactive elements) can be found in nature, and they can be placed in three general categories: Primordial - from before the creation of the Earth Cosmogenic - formed as a result of cosmic ray interactions Human produced - enhanced or formed due to human actions (minor amounts compared to natural) Radionuclides are found naturally in air, water and soil. They are even found in us, being that we are products of our environment. Every day, we ingest and inhale radionuclides in our air and food and the water. Natural radioactivity is common in the rocks and soil that makes up our planet, in water and oceans, and in our building materials and homes. There is nowhere on Earth that you can not find Natural Radioactivity. Radioactive elements are often called radioactive isotopes or radionuclides or just nuclides. There are over 1,500 different radioactive nuclides. Often, radionuclides are symbolized based on the element and on the atomic weight, as in the case of radioactive hydrogen or tritium with an atomic weight of 3 is shown as H-3 or H. As another example, Uranium with the atomic weight of 235 would be shortened to U-235 or

133. ISDH: Indoor And Radiologic Health: Radon Indiana State Department of Health Indoor and Radiologic Health. radon. The following web sites provide additional information about radon http://www.in.gov/isdh/regsvcs/radhealth/radon.htm

@import url(/ender/ender.css); Skip Ender Navigation accessIndiana Agency Listing Policies var dir = location.href.substring(0,location.href.lastIndexOf('www.in.gov/')); var url = location.href.substring(dir.length,location.href.length+1); document.write("Text Only") Contact Webmaster Help document.write(ender); About the Agency Bioterrorism Health Professionals Regulatory Services ... Contact Us Indiana State Department of Health Indoor and Radiologic Health Radon The Indoor and Radiological Health (IRH) program has the responsibility of certifying radon testers and mitigators in the State of Indiana, and providing the public of Indiana information about radon and its effects. The following information is available on this subject: IC 16-41-38, the Indiana radon law PDF HTML List of Indiana Certified Radon Testers and Mitigators HTML Description of List PDF List of Indiana Certified Radon Laboratories (from which home test equipment can be purchased) PDF Application for Radon Tester/Mitigator Certification PDF The following web sites provide additional information about radon: U.S. Environmental Protection Agency (EPA) Office of Air and Radiation Radon Page

134. Welcome To The Radon In North Carolina Web Site The Residential radon Measurement Course is a sixteenhour training course designed to instruct present and future Residential Measurement...... Course http://www.ces.ncsu.edu/depts/fcs/radon/

Welcome Welcome to the Radon in North Carolina Web Site. This site is sponsored by the NC Cooperative Extension Service - Radon Education Program and the NC Division of Radiation Protection (NCDRP). The purpose of this web site is to provide you access to information about radon. Through this web site and our offices, we offer a range of radon education and information services. Funding for this site and other radon information programs in North Carolina comes from the Environmental Protection Agency's (EPA) State Indoor Radon Grant (SIRG). Watch for changes and additions! Home Basic Info Services Links ... New Radon Education Opportunities Radon Agencies / Personnel in North Carolina The is the lead agency responsible for organizing and administering radon programs in North Carolina. Below are personnel in the Division of Radiation Protection responsible for radon. State Radon Contact for the EPA The NC Cooperative Extension Service - Radon Education Program works closely with the NCDRP. A variety of outreach and educational programs relative to radon are developed and conducted by Susan E. Pope, Extension Radon Educator. You may contact her at susan_pope@ncsu.edu

135. Welcome To Pylon Electronics radon and Thoron gas detectors for environmental monitoring. Also provides electrical and mechanical repair and calibration services. http://www.pylonelectronics.com/

About Pylon Corporate Home Profile Contact Newsroom Pylon Products and Services Power Products Cable Assemblies Calibration Services Instrumentation Power Technologies Group Power Products Pylon combines complete in-house design, manufacturing and test capabilities to produce AC and DC power products for critical applications in the telecommunications, utility and industrial marketplaces. Our specialty is power inverters. We also have a comprehensive line-up of battery chargers/eliminators, DC/DC converters, and ringing generators. If you have unique requirements, we specialize in custom-designed products and providing private label products for our OEM partners. Cable Assemblies Pylon's Cable Technologies Group manufactures superior quality, custom fiber-optic and copper cable assemblies and harnesses. Working with the customer, Pylon engineers and delivers cable solutions for specific and unique applications. Whether it's for prototypes or large production runs, Pylon can satisfy your requirements.

136. Radon The Michigan Indoor radon Program is a nonregulatory program. It s purpose is to increase awareness of the health risk associated http://www.michigan.gov/deq/1,1607,7-135-3310_4104_4196---,00.html

Skip Navigation Michigan.gov Home Permits Programs ... Michigan Indoor Radon Program Overview The Michigan Indoor Radon Program is a non-regulatory program. It's purpose is to increase awareness of the health risk associated with exposure to elevated indoor radon levels, to encourage testing for radon, and to also encourage citizens to take action to reduce their exposure once elevated radon levels are found. More Where to Get a Radon Test Kit Radon Action Week 2002 Frequently Asked Questions about Radon ... Radon-Resistant New Construction Quick Links Contact Information for Indoor Radon Michigan.gov Home Online Services Permits ... Security Policy

137. ABC Property- Home And Commercial Inspection, Quality Home Inspection Serving Ka Kansas City's home, commercial, environmental, and building inspections. ABC will conduct radon, Asbestos, Plumbing, Electrical, testing and property research in greater Kansas City for over 10 years. http://www.abcinspection.com

138. South Dakota Radon - Air Quality Applications. AQ Laws. AQ Rules. radon. Asbestos. Training. PMB2020 SD DENR Joe Foss Building 523 E. Capitol Pierre, SD 57501 (605) 7733151. radon What Is radon? http://www.state.sd.us/denr/DES/AirQuality/aarad.htm

Site index Protecting South Dakota's Tomorrow ...Today AQ Program~ Staff AQ News Public Notices Rapid City ... AQ Links SD DENR Joe Foss Building 523 E. Capitol Pierre, SD 57501 Radon What Is Radon? - An explanation of what radon is and how it can enter your home. South Dakota Levels - A brief summary of SD levels and maps showing radon potential for SD and US. How To Test - Where to get a radon test kit, basic instruction on how to do the test and links to lists of certified measurement providers for SD. Mitigation - Methods to reduce radon levels in your home and links to lists of certified mitigation professionals for SD. Courses - Radon related courses sponsored by DENR. More Information - SD contact, speakers, list of publications available, 1-800 hotline numbers, and other related websites. Staff Barb Regynski - E-mail , Natural Resources Program Scientist Top of page SD Home DENR Home AQ Home ... Privacy Policy Last updated: March 12, 2004

139. UIC - Radiation And Life Illustrated primer on radiation all around us. Origins and types of radiation. Ionising, cosmic, background and manmade radiation. radon contributes 48% of the radiation dose to people in Australia. Uranium Information Center, 1998. http://www.uic.com.au/ral.htm

Radiation and Life "Life on earth has developed with an ever present background of radiation. It is not something new, invented by the wit of man: radiation has always been there." Eric J Hall, Professor of Radiology, College of Physicians and Surgeons, Columbia University, New York, in his book "Radiation and Life". Radiation and Life Radiation is energy travelling through space. Sunshine is one of the most familiar forms of radiation. It delivers light, heat and suntans. We control its effect on us with sunglasses, shade, air conditioners, hats, clothes and sunscreen. There would be no life on earth without lots of sunlight, but we have increasingly recognised that too much of it on our persons is not a good thing. In fact it may be dangerous, so we control our exposure to it. Sunshine consists of radiation in a range of wavelengths from long-wave infra-red to short-wavelength ultraviolet, which creates the hazard. Beyond ultraviolet are higher energy kinds of radiation which are used in medicine and which we all get in low doses from space, from the air, and from the earth. Collectively we can refer to these kinds of radiation as ionising radiation . It can cause damage to matter, particularly living tissue. At high levels it is therefore dangerous, so it is necessary to control our exposure.

140. Radon Information on radiationrelated subjects including radioactive materials, x-rays, laser, mammography, radon, and regulatory issues. INDOOR radon. http://www.tdh.state.tx.us/radiation/radon.htm

INDOOR RADON What is Radon? Radon is an odorless, colorless, radioactive gas that develops with the natural breakdown of uranium in soil and rock. Radon can migrate through permeable rocks and soils and eventually seep into buildings or be relased into the atmosphere. Radon is measured in units of picocuries per liter (pCi/l) of radon in the air. What are the Health Risks Associated with Radon? The only known health risk associated with Radon is the potential to develop lung cancer. In addition, smoking combined with radon exposure greatly increases the risk for developing lung cancer. How are You Exposed to Radon? Radon that seeps into homes may accumulate there and decay into radioactive, chemically reactive particles that attach themselves to dust in the home environment. If inhaled over a long period of time, these radioactive particles may cause damage to the lung tissues and increase the risk of developing lung cancer.

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