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Understanding Winter Radon Levels

Radon levels tend to rise during the winter months, and several factors contribute to this phenomenon:

  1. Reduced Ventilation:

  • Tight home sealing for warmth reduces ventilation, allowing indoor pollutants like radon to accumulate.

  1. Stack Effect:

  • Warm air rising in buildings creates negative pressure, drawing in radon from the ground.

  1. Frozen Ground:

  • Winter freezes the ground, hindering radon's escape and increasing its concentration beneath buildings.

  1. Heating Systems:

  • Some heating systems create negative pressure, pulling in radon; inefficient systems can worsen this effect.

  1. Behavioral Patterns:

  • Closed windows and doors during winter limit ventilation, leading to higher indoor radon levels.

Radon, a naturally occurring gas, poses health risks, including an increased risk of lung cancer. Testing and mitigation are crucial for a healthy indoor environment.

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