81. OSH Answers: Radon In Buildings What is radon? What are the health effects of radon? Whatdo uranium and radon have in common? radon in Buildings. http://www.ccohs.ca/oshanswers/phys_agents/radon.html

Canadian Centre for Occupational Health and Safety Centre canadien d'hygiène et de sécurité au travail Français Contact Us Help Canada Site ... Shop@CCOHS Radon in Buildings What is radon? What are the health effects of radon? What do uranium and radon have in common? What are the units of measuring radon levels? ... What are recommended levels of exposure in some other countries? OSH Answers Feedback Printer Friendly Layout Inquiries Service The Inquiries Service at CCOHS answers questions on the health or safety concerns people have about the work they do. More on Inquiries Service Printer Friendly Layout Physical Agents Radon in Buildings What is radon? Radon is an invisible, odourless, radioactive gas. It is formed by the disintegration of radium, which is a decay product of uranium. Radon emits alpha particles and produces several solid radioactive products called radon daughters. Some amounts of radon gas and radon daughters are present everywhere in the soil, water, and air. Particularly high radon levels occur in regions where the soil or rock is rich in uranium. Radon is emitted by radium in the ground, groundwater and building materials. It can enter the indoor air where it and its decay products accumulate in poorly ventilated areas. Harmful levels of radon and radon daughters can accumulate in confined air spaces, such as basements and crawl spaces. Radon daughters are inhaled with air and deposit in the lungs. The lung absorbs alpha particles emitted by the radon daughters. The resulting radiation dose increases the risk of lung cancer.

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

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83. Radon Division Site Navigation. radon Division. radon is Everywhere! KIDS radon video. Statuteradon Certification Act, act of July 9, 1987 (PL 238, No. 43), 63 PS Sec. http://www.dep.state.pa.us/dep/deputate/airwaste/rp/Radon_Division/Radon_Homepag

Site Navigation Radon Division Radon Video (Requires Flash Part 1 Part 2 Part 3 Part 4 Part 5 KIDS Radon video Radon Public Service Announcement Physician General of Pennsylvania Robert S. Muscalus, D.O. (Requires Real Player The Radon Division ensures public health and safety by increasing public and professional awareness of radon and its health risks and by administration of a certification program for radon testing, mitigation, and laboratory analysis individuals and firms. Michael Pyles Division Chief E-Mail: mailto:mpyles@state.pa.us Phone: 717-783-3594 Radon Division Hotline: 800-237-2366 (Pennsylvania only) Statute: Radon Certification Act, act of July 9, 1987 (P.L. 238, No. 43), 63 P.S. Sec. 2001 2014. Statute: Radiation Protection Act, act of July 10, 1984 (P.L. 688, No. 147), 35 P.S. Sec. 7110.1017110.703. Statute: Administrative Code of 1929, Section 1920-A (71 P.S. Sec. 510-20). Regulations: 25 Pa. Code, Environmental Protection, Chapter 240 Radon Certification Radon Services Directory Lists persons certified to perform radon testing, mitigation, and analysis services. Certification is required by law.

84. Information On Radon From The Radiological Protection Institute Of Ireland The Radiological Protection Institute of Ireland is the national organisationcharged 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

85. SSI — Statens Strålskyddsinstitut — Swedish Radiation radon Uppdaterad juni 2002, radon är en ädelgas som bildas när det radioaktivagrundämnet radium sönderfaller. radongasen sönderfaller http://www.ssi.se/radon/framsida.html

rand(15) Radon Uppdaterad juni Radonutredningen 2000 Ansvarig utgivare: Britt Ekman . Webmaster: Bosse Alenius . Har du frågor eller synpunkter, kontakta SSI Statens strålskyddsinstitut, 171 16 Stockholm. Tfn: 08-729 71 00, fax: 08-729 71 08

86. Radon Web Page WYOMING radon PROJECT. Wyoming Department of Health. radon is a naturallyoccurring radioactive gas that is odorless, colorless and tasteless. http://wdh.state.wy.us/radon/

WYOMING RADON PROJECT Wyoming Department of Health Debi Nelson, Coordinator Hathaway Building, Room 486 Cheyenne, WY 82002 This page has been accessed times since 10/20/98. List of Qualified Radon Testers and Contractors in Wyoming Where to Obtain a Radon Test Kit or Information in Your County Radon in Water Factsheet Wyoming Radon Statistics

87. Radon In Your Home WHAT YOU SHOULD KNOW. Last updated 4/2/2002. WHAT IS radon? WHERE CANradon 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

88. Maryland Geological Survey: Pamphlet Series. radon and Your Home, contact Dale Shelton (dshelton@mgs.md.gov). Certainhome 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.

89. Quality Assurance Program Quality Systems Innovations provides QA programs and training for ISO 9000 compliance to small businesse Category Computers Software Software Engineering Quality Assurance......Quality Assurance Programs. Quality Systems Innovations, Inc. offers a qualityassurance program based on the ISO 90012000 quality system standard. http://www.qsinnovations.com/radonqualityassurance.html

Quality Assurance Programs Quality Systems Innovations, Inc. offers a quality assurance program based on the ISO 9001:2000 quality system standard. The quality manual and all system documentation are tailored to the specific needs of your business. We will outline what is required and provide only as much of the documentation as you need. You will be able to install a sensible, effective, and ISO 9001:2000 compliant system quickly and at a reasonable cost. We keep your costs down by using your responses to questionnaires to customize your documentation. We offer a full range of quality services: training, auditing, consulting, and will support you should you prefer to train your staff in the requirements of your new program. Our staff includes experienced professionals. We are ready to help you by providing what, and only what you need, at a price you can afford. Let our experience and commitment help you. Training in Quality Assurance We offer training programs to assure you receive maximum benefit from your quality assurance program . Again, we will analyze your needs and recommend a training program for your specific situation. One option is virtual consulting in which our trainer meets with your trainees via the internet. We will develop the syllabus and provide or recommend training materials. We also offer the training syllabus and material or will recommend training material should you choose to do your own training. Our commitment is to provide what, and only what, you need at an affordable price.

90. BAG - Strahlenschutz Translate this page DIENSTE, DAS BAG, HILFE Suchen Sitemap Kontakt Bedienung, radon Vorradon kann man sich schützen, gegen radon kann man etwas tun ! http://www.bag.admin.ch/strahlen/ionisant/radon/d/

D F erweitert AKTUELL THEMEN ... Bedienung Radon... ein radioaktives Edelgas (Zerfallsreihe gelangt vom Bauuntergrund ins Gebäude verursacht rund 200 Todesfälle durch Lungenkrebs macht 40% der Strahlenexposition der Bevölkerung aus Vor Radon kann man sich schützen, gegen Radon kann man etwas tun ! Besuchen Sie unsere interaktive Diashow © 2002 Bundesamt für Gesundheit, CH-3003 Bern Tel +41 (0)31 322 21 11, Fax +41 (0)31 322 95 07 E-Mail str@bag.admin.ch , Letzte Änderung: 31.07.2002 Ionisierende Strahlung [Radon] Strahlenschutz Allgemein Berufliche strahlenexponierte Personen Externe Strahlenexposition Dosisgrenzwerte ... FAQ Dosi- metrie Allgemein Dokumentation Gesetz Links ... Frequently Asked Questions Radioa. Umwelt Allgemein Spektrometrie Dokumentation Gesetz ... Frequently Asked Questions Grund lagen Allgemein Strahlenschutz Anwendung Dokument ... News Radio- pharma Allgemein Eignung Liste Gesetz ... Radon Herun- terladen Dosimetrie Radio. Umwelt Grund lagen Radiopharma ... Radon

91. GOTRADON.COM - Radon Mitigation Solutions - Providing Radon Testing, Radon Test Provides radon testing and mitigation services in upstate SC, Western NC and Northeast GA.Category Science Environment radon Mitigation and Testing......Providing certified radon testing radon mitigation services in upstateSC, western NC and northeastern GA. . wd_check Testing for radon. http://removeradon.com/

Have you tested your house yet? The EPA says that prolonged exposure to elevated levels of radon gas is the 2nd leading cause of lung cancer in the U.S. and is responsible for approximately 15,000 deaths each year. Testing for radon in your home is simple and inexpensive! Where does Radon come from Myths about Radon The EPA position on Radon EPA Radon Maps Radon Risk Chart The Iowa Radon Study Radon and Dental X-rays Homes found to have radon in Greenville County (SC) Testing for Radon I f you currently have a radon mitigation system in your home If you are outside our market areas click above FAQ's F requently A sked Q uestions) about Radon by homebuyers by homesellers by current homeowners by individuals planning to build a home ... To order and schedule a radon test R adon M itigation S olutions, (RMS) is a SC-DHEC listed company that provides radon gas testing as well as radon mitigation system installation in homes and businesses across the South Carolina upstate! While elevated radon levels in a home or an office are a potential health concern, radon can always be successfully reduced by trained professionals to below EPA recommended action levels. Since the EPA has reported that elevated levels of radon are particularly prevalent in SC upstate homes with concrete slabs, the presence of a radon mitigation system will insure that radon will not effect the future resale value of a home. If you plan to stay in your current residence more than a few years, it would be in your family's best health interest to have your home tested!

92. Îôèöèàëüíûé ñàéò ÌîñÍÏÎ ÐÀÄÎÍ The summary for this Russian page contains characters that cannot be correctly displayed in this language/character set. http://www.radon.ru/

93. Free Radon Test Kits radon test kits for do it yourself radon testing at unbeatable prices. EPAapproved. You can even Category Science Environment radon Mitigation and Testing......radon test kits at unbeatable prices for do it yourself radon testing.You can even get a radon test kit for free! Free radon Test Kits. http://www.free-radon-test-kits.com/

Free Radon Test Kits The most popular radon test kits at unbeatable prices! You can even get a test kit for free! Approved by the U.S. EPA Top-rated by a leading consumer product testing group FREE laboratory testing and a certified written report FREE shipping throughout the US About radon gas Radon is an invisible radioactive gas produced by most rocks and soils. It is a single-atom gas whose atoms easily penetrate through pores in concrete, paints or surface sealers, and even most plastics. Radon gas is a very potent carcinogen and children are particularly susceptible. Radon is the second leading cause of lung cancer, the No. 1 cancer killer. Radon testing of all homes Radon level can vary dramatically between adjacent houses. EPA recommends radon testing of all homes and has approved accurate radon test kits. Radon testing is essential before putting your home on the market to allow time for radon mitigation, and before buying a house or basement remodeling. Repeat the radon test once a year! Concrete becomes more porous over time, joints or cracks open up, and underground flows of radon shift. Whether or not you have a radon mitigation system, your radon level may increase dramatically.

94. Radon-Press In English. In Russian. SpyLOG http://www.radon-press.ru/

95. Fact Sheet 3.52 Questions and Answers About radon and Cancer. Lubin, J, Boice Jr, J Lung cancerrisk from residential radon Metaanalysis of eight epidemiologic studies. http://cis.nci.nih.gov/fact/3_52.htm

Cancer Facts CIS Home Cancer.gov Dictionary Search Date reviewed: 1/12/1998 Questions and Answers About Radon and Cancer 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? Radon quickly decays, emitting tiny radioactive particles. When inhaled, these radioactive particles can damage the cells lining the lung. Long-term exposure to radon can lead to lung cancer, the only cancer proven to be associated with inhaling radon. How is the general population exposed to radon? Everyone breathes in radon every day, but mostly at very low levels resulting in little

96. Radon Detection Systems, Inc. A nationwide environmental inspection firm headquartered in Colorado. Performs tests for radon, lead, Category Science Environment radon Mitigation and Testing......radon Detection Systems, Inc., offers environmental testing for radon, lead, asbestos,formaldehyde, electromagnetic fields and underground storage tank leaks. http://www.radondetectionsystems.com/

Welcome to Radon Detection Systems, Inc. , the nation's choice for environmental testing. Our company, also known as RDS Environmental , offers services in the following areas: Radon Testing Residential Underground Storage Tank (RUST) Testing Lead Testing Asbestos Testing Formaldehyde Testing Electromagnetic Field (EMF) Testing And now we've made ordering tests even easier. You can do it directly from our web site! In our 20 years of environmental testing, we've performed hundreds of thousands of tests, we've passed all EPA, National Environmental Health Association (NEHA), and state certification proficiency tests, and we've always used the most thorough procedures available. To top it off, we offer the same high quality services from Fairbanks, Alaska to Key West, Florida at one low price.

97. Radon In Ground Water Of The Lower Susquehanna And Potomac River Basins WHAT IS radon? radon is a naturally occurring, colorless, odorlessgas that is soluble in water. RETURN TO TOP. WHY STUDY radon? http://pa.water.usgs.gov/reports/wrir_96-4156/report.html

Table of Contents Abstract WHAT IS RADON? WHY STUDY RADON? WHERE DID WE LOOK? ... Selected References Abstract Ground-water samples collected from 267 wells were analyzed for radon as part of a water-quality reconnaissance of subunits of the Lower Susquehanna and Potomac River Basins conducted by the United States Geological Survey (USGS) as part of the National Water-Quality Assessment (NAWQA) program. Radon is a product of the radioactive decay of uranium. Airborne radon has been cited by the Surgeon General of the United States as the second-leading cause of lung cancer and the United States Environmental Protection Agency (USEPA) has identified ground-water supplies as possible contributing sources of indoor radon. Eighty percent of ground-water samples collected for this study were found to contain radon at activities greater than 300 pCi/L (picocuries per liter), the USEPA's proposed Maximum Contaminant Level for radon in drinking water, and 31 percent of samples contained radon at activities greater than 1,000 pCi/L. The 10 subunits where samples were collected were grouped into three classes - median ground-water radon activity less than 300 pCi/L, between 300 pCi/L and 1,000 pCi/L, and greater than 1,000 pCi/L. Subunits underlain by igneous and metamorphic rocks of the Piedmont Physiographic Province typically have the highest median ground-water radon activities (greater than 1,000 pCi/L); although there is a large variation in radon activities within most of the subunits. Lower median radon activities (between 300 pCi/L and 1,000 pCi/L) were found in ground water in subunits underlain by limestone and dolomite. Of three subunits underlain by sandstone and shale, one fell into each of the three radon-activity classes. The large variability within these subunits may be attributed to the fact that the uranium content of sandstone and shale is related to the uranium content of the sediments from which they formed.

98. Welcome To The Radon In North Carolina Web Site The Residential radon Measurement Course is a sixteenhour trainingcourse 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

99. Radon The Its Your Health fact sheet entitled radon has been revised. Please updateyour bookmarks. http//www.hcsc.gc.ca/english/iyh/environment/radon.html. http://www.hc-sc.gc.ca/ehp/ehd/catalogue/general/iyh/radon.htm

Previous The "Its Your Health" fact sheet entitled RADON has been revised. Please update your bookmarks http://www.hc-sc.gc.ca/english/iyh/environment/radon.html October 29, 2002

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