Radon Presentation


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A practical guide to radon detection and remediation.

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  • It is a lie made up by the EPA to scare people and give inspectors another revenue stream. What do you know about Radon?
  • CERTIFIED measurement and mitigators Hours of education CERTI slides
  • Show EPA Citizens Guide
  • Coach clients on basement use, Long Term tests, who pays
  • Being exposed to radon does not mean that you will contract lung cancer. To develop lung cancer from radon the radiation released from its decay has to strike a lung cell and within that lung cell it has to strike a specific location. Since the radiation is released in a random manner, the potential for lung cancer increases with exposure, whether that be exposure to a small amount of radon for a long period of time or a high amount of radon for a short period of time. The probability of contracting lung cancer is like a blind folded person tossing darts at dartboard. If the person tosses a single dart at a time, it is probable that it will take a considerable period of time before the person strikes the bulls eye. On the other hand, if the person throws a handful of darts at a time, it is likely that less time will pass before the person strikes the bulls eye.
  • “Voluntary” Compliance How YOU, the agent, can help
  • Why we are CERTIFIED
  • Show Report Certified on CRMs I am the lab
  • Radon Presentation

    1. 1. Tom Yeager Owner/Certified Inspector NEHA Radon Measurement Cert. # 104169 RT 303-464-9090 www.tyeagerinspects.com
    2. 2. Radon A Practical Guide To Radon Detection and Remediation
    3. 3. Purpose & Disclaimer <ul><li>Purpose </li></ul><ul><ul><li>Provide BASIC information related to radon definition, detection and remediation </li></ul></ul><ul><li>Disclaimer </li></ul><ul><ul><li>Not intended to be all-inclusive or to be used for decision making purposes. Please refer to the “ Additional Resources ” slide for more information. </li></ul></ul>
    4. 4. What Is Radon? <ul><li>a radioactive gas that is colorless, odorless, tasteless, and chemically inert. </li></ul><ul><li>Radon atoms are direct descendents from uranium.  When atoms of uranium-238 decay, they produce several generations of other radioactive elements.  The fifth generation is radium, which in turn decays into radon. </li></ul>
    5. 6. What Is Radon? <ul><li>Radon breaks down into decay products </li></ul><ul><li>Decay products can be inhaled and have electrostatic charges causing them to sick to lung tissue </li></ul><ul><li>Further decay releases particles that can damage lung tissue </li></ul>
    6. 9. Where is Radon Found? <ul><li>Though great concentrations of uranium are rare, traces of it are common in ordinary rock and soil throughout much of the United States.  </li></ul><ul><li>Zone Maps </li></ul>
    7. 11. Where is Radon Found? <ul><li>Concentrations vary greatly from place to place depending on the underlying geology. (houses next door to each other) </li></ul><ul><li>CDPH&E – “four out of 10 Colorado homes have the potential for having radon concentrations in excess of EPA guidelines” </li></ul>
    8. 12. How Does Radon Invade Homes? <ul><li>Radon is a gas, which means it is very mobile. It is also a single atom, therefore small. It can get into a home via cracks, gaps and openings in floors and walls . </li></ul><ul><li>Negative pressure in the home or pressures in the underlying soil </li></ul>
    9. 14. What Are The Health Effects? <ul><li>According to the EPA: </li></ul><ul><li>Estimated to cause about 21,000 deaths per year </li></ul><ul><li>Second leading cause of lung cancer </li></ul><ul><li>More deaths than drunk driving </li></ul><ul><li>Non-smoker, 4 pCi/L over lifetime = 7 out of 1000 could get lung cancer </li></ul>
    10. 17. Health Factors <ul><li>Your chances of contracting lung cancer from radon exposure increase based on three factors, which are: </li></ul><ul><ul><li>The level of radon in your home </li></ul></ul><ul><ul><li>How much time you spent in the home </li></ul></ul><ul><ul><li>Whether you are a smoker/former smoker or non-smoker </li></ul></ul>
    11. 19. Radon Measurement <ul><li>Radon is measured in Pico curies (pCi), which  is the rate of radioactive decay of radon.  </li></ul><ul><li>Four Pico curies per liter of air (4 pCi/L) is the EPA’s recommended action level, whereby steps should be taken to reduce the amount of radon present in the home. </li></ul><ul><li>Average outdoor radon levels are 0.4pCi/L </li></ul>
    12. 20. Real Estate Radon Testing <ul><li>Easy and quite reliable </li></ul><ul><li>Performed in the lowest level suitable for occupancy </li></ul><ul><li>Placement according to EPA Standards </li></ul><ul><li>Closed House Conditions </li></ul><ul><li>(Compliance Doc. & Door Hangers) </li></ul>
    13. 23. Real Estate Testing <ul><li>Sequential Integrating Devices </li></ul><ul><li>Simultaneous Integrating Devices </li></ul><ul><li>(4 inches apart) </li></ul><ul><li>Continuous Monitors </li></ul><ul><li>(hourly readings) </li></ul><ul><li>48 hour minimum test time </li></ul>
    14. 26. Devices <ul><li>Activated Charcoal </li></ul><ul><li>Electret Ion Chamber </li></ul><ul><li>Electret Radon Progeny Integrating Sampling Unit </li></ul><ul><li>Continuous Working Level Monitors </li></ul><ul><li>Continuous Radon Monitors </li></ul>
    15. 27. Radon Mitigation <ul><li>Mitigation is recommended if the reading is above 4pCi/L. </li></ul><ul><li>Mitigation involves: </li></ul><ul><ul><li>Sealing radon entry points (never by itself) </li></ul></ul><ul><ul><li>Active Soil Depressurization </li></ul></ul><ul><ul><ul><li>Slab based piping </li></ul></ul></ul><ul><ul><ul><li>Exhaust fan </li></ul></ul></ul><ul><ul><ul><li>Exterior piping </li></ul></ul></ul>
    16. 30. Additional Resources <ul><li>Environmental Protection Agency </li></ul><ul><li>epa.gov </li></ul><ul><li>Colorado Department of Public Health and Environment </li></ul><ul><li>http://www.cdphe.state.co.us/hm/rad/radon/index.htm </li></ul><ul><li>www.tyeagerinspects.com </li></ul>