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All about Radon PDF

Nashville Radon,Nashville Radon Test,Nashville Radon Mitigation,Knoxville Radon,Knoxville Radon Mitigation,Knoxville Radon Test,Radon One

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All about Radon PDF

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  1. Silent Killer in Your Home - Radon Gas We continually strive for improvements in education and awareness of environmental concerns that are detrimental to indoor air quality and good health. We seek to determine real and lasting solutions that are not only right for our clients and their families but also right for the communities and neighborhoods in which we live. We seek to partner and align with organizations that work to improve air quality issues in our homes, schools, and workplaces.

  2. Causes and Cures Radon Gas – What is It?  Natural  Colorless  Odorless  By-product of Uranium

  3. Causes and Cures Radon is a naturally occurring gas that enters buildings from the surrounding soil, ground water or building products. RADON GAS RADIUM It comes from the decay of Uranium which breaks down into Radium and then to Radon gas. URANIUM

  4. Causes and Cures Radon Gas – What is It?  Natural  Colorless  Odorless  By-product of Uranium

  5. Causes and Cures How was it Discovered?  Mines  Reading prong What contributes to Radon in Homes?  Location  House type/Airtightness  Pressure differential

  6. Causes and Cures What is the Concern?  Radon exposure is reported to be the second leading cause of lung cancer, behind smoking.  Smoking compounds the effects of radon.

  7. Causes and Cures Where is Radon found?

  8. Causes and Cures Radon in Homes  Internal negative pressure  Sump pump pits  Cracks in foundation walls and floors  Gaps between slabs and walls  Potable water  Gaps around piping through walls and floors  Granite products (e.g. countertops)

  9. Causes and Cures Peculiarities of Radon – levels will vary:  Geographic location  Type construction  Type mechanical systems  Time of day  Weather conditions  Time of year – seasonal changes  Occupant lifestyle  Other factors

  10. Causes and Cures Level will vary House-to-House 0.3 pCi/L 4.8 6.8 pCi/L 1.2 pCi/L pCi/L 10.0 0.5 pCi/L 2.1 pCi/L 1.4 pCi/L pCi/L

  11. Causes and Cures Radon Mitigation Action Levels  Radon is measured in picoCuries/Liter.  Radon measurements below 4 pCi/L – Radon mitigation is generally not required.  Radon measurements of 4 pCi/L or higher – Radon mitigation to lower annual radon exposure is recommended.  Radon levels fluctuate with weather and atmospheric changes over the course of a year. Long-term testing will give better indications of the annual radon potential. Radon Action Level = 4 pCi/L or higher

  12. Causes and Cures Radon Detection Devices  Charcoal Canisters  Electret Ion Chamber  Charcoal Liquid Scintillation  Continuous Monitors  Alpha Track (long term)  Radon in Water Radon levels fluctuate with weather and atmospheric changes over the course of a year. Long-term testing will give better indications of the annual radon potential.

  13. Causes and Cures Short-term Screening Charcoal Canister  Canisters, Electrets, Liquid Scintillation - Readily Available - Reasonable Turn-around - Unsupervised - Gives Snap-shot - Affordable Electret Charcoal Bag Liq. Scintillation

  14. Causes and Cures Short-term Screening  Continuous Monitors - Interval Readouts - Identifies Irregularities/Tampering - Reasonable Cost - Prompt Results

  15. Causes and Cures Long-term Testing Options  Continuous Monitors  Alpha Track (90 days)  Electrets  Not usually with Real

  16. Causes and Cures Testing Conditions        Closed house conditions Lowest livable area Not in kitchen, bath or laundry room Not in crawlspace No fans operating Normal HVAC operation Normal entry / exit by occupants

  17. Causes and Cures Testing Conditions  For short-term tests, all windows and external doors, on all floors, should remain closed, except for normal entry and exit. For tests lasting less than 4 days, closed house conditions must be initiated 12 hours prior to starting the test. Testing methods will also depend on whether testing is associated with a real estate transaction and local requirements.  

  18. Causes and Cures Not for Sale Up to the homeowner and their use of the home. Lowest Lived In Finished Basement Unfinished Basement Real Estate Transaction Local requirements - Based on the use of the “space” in the home. Lowest Lived In Finished Basement Unfinished Basement Also, Agreement between Home Buyer and Seller.

  19. Causes and Cures Radon Mitigation Methods  Ventilation  Sub-slab Depressurization (Suction)  Seal cracks and gaps in subgrade walls and floors  Seal sump pump pits  Run PVC pipe through floor slab to exterior  Install inline continuously operating fan  House Air Pressurization – Install continuously operating fan to maintain positive air pressure within subgrade areas or house

  20. Causes and Cures Radon Mitigation – Typical Costs Home Under Construction Less than $500 Existing Home $800 - $2200

  21. Thank you! Questions?

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