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  2. Radon mitigation - Wikipedia

    en.wikipedia.org/wiki/Radon_mitigation

    High radon levels in a Minnesota (USA) basement with a passive under slab vent pipe system can be seen in the left half of the graph. After installation of a radon fan (ASD), a permanent reduction in radon levels to approximately 0.6 pCi/L can be seen in the right half of the graph. The most common approach is active soil depressurization (ASD).

  3. Basement waterproofing - Wikipedia

    en.wikipedia.org/wiki/Basement_waterproofing

    Weeping tile is a porous plastic drain pipe installed around the perimeter of the house. The main purpose of external weeping tile is preventing water from getting into a basement. However, these pipes can become clogged or damaged, which causes excess water to put pressure on internal walls and basement floors.

  4. Radon - Wikipedia

    en.wikipedia.org/wiki/Radon

    It was determined that radon levels in his home's basement were in excess of 100,000 ... the method to reduce radon "...primarily used is a vent pipe system and fan, ...

  5. High levels of deadly radon gas found in one-quarter of Erie ...

    www.aol.com/high-levels-deadly-radon-gas...

    More than 26% of Erie County homes tested for radon between 2010 and 2020 have detected high levels of the odorless, colorless, tasteless, and deadly gas. High levels of deadly radon gas found in ...

  6. Vapor barrier - Wikipedia

    en.wikipedia.org/wiki/Vapor_barrier

    A slab-on-grade or basement floor should be poured over a cross-laminated polyethylene vapor barrier over 4 inches (10 cm) of granular fill to prevent wicking of moisture from the ground and radon gas incursion. Inside a steel building, water vapor will condense whenever it comes into contact with a surface that is below the dew point temperature.

  7. Indoor air quality - Wikipedia

    en.wikipedia.org/wiki/Indoor_air_quality

    The half-life for radon is 3.8 days, indicating that once the source is removed, the hazard will be greatly reduced within a few weeks. Radon mitigation methods include sealing concrete slab floors, basement foundations, water drainage systems, or by increasing ventilation. [96]

  8. Health effects of radon - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_radon

    Radon is responsible for the majority of public exposure to ionizing radiation. It is often the single largest contributor to an individual's background radiation dose, and is the most variable from location to location. Radon gas from natural sources can accumulate in buildings, especially in confined areas such as attics and basements.

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