Radon Knowledge Base

Additional Weather and Seasonal Radon Questions

This short topic gathers additional questions about weather, seasons, and environmental conditions that can affect radon readings. Storms, frozen ground, wind, open windows, humidity, and HVAC operation can all change how air moves through a home. Those factors may explain why a reading moves, but they do not automatically make a high pattern harmless. American Radon Systems focuses on mitigation, so the practical question is whether the home or existing system needs review. Bill can check fan operation, suction, sump sealing, crawlspace details, passive piping, or other system conditions when readings stay elevated or behave differently after work on the home.

We're renting and the landlord says my monitor reading is wrong because "radon varies." Is that true?

For the radon side, focus on a reliable current reading and a clear mitigation path if the level is elevated. Real-estate paperwork, repair allowances, rental responsibilities, and closing decisions should be handled by the people managing the transaction. Bill can help with the practical radon part: what the number means, whether mitigation makes sense, and what a proper system would involve. If the reading is 4.0 pCi/L or higher, EPA recommends fixing the home. Between 2.0 and 4.0 pCi/L, EPA says to consider mitigation, especially if the space is used often.

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I rent out my basement as an Airbnb. Radon is 4.8 pCi/L. Do I have any obligation to guests?

For the radon side, focus on a reliable current reading and a clear mitigation path if the level is elevated. Real-estate paperwork, repair allowances, rental responsibilities, and closing decisions should be handled by the people managing the transaction. Bill can help with the practical radon part: what the number means, whether mitigation makes sense, and what a proper system would involve. If the reading is 4.0 pCi/L or higher, EPA recommends fixing the home. Between 2.0 and 4.0 pCi/L, EPA says to consider mitigation, especially if the space is used often.

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We have a college student living in our basement apartment. Radon is 5.2 pCi/L. Should we tell them?

For the radon side, focus on a reliable current reading and a clear mitigation path if the level is elevated. Real-estate paperwork, repair allowances, rental responsibilities, and closing decisions should be handled by the people managing the transaction. Bill can help with the practical radon part: what the number means, whether mitigation makes sense, and what a proper system would involve. If the reading is 4.0 pCi/L or higher, EPA recommends fixing the home. Between 2.0 and 4.0 pCi/L, EPA says to consider mitigation, especially if the space is used often.

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Is radon regulated like other air pollutants? Why isn't there a paperwork limit?

For the radon side, focus on a reliable current reading and a clear mitigation path if the level is elevated. Real-estate paperwork, repair allowances, rental responsibilities, and closing decisions should be handled by the people managing the transaction. Bill can help with the practical radon part: what the number means, whether mitigation makes sense, and what a proper system would involve. If the reading is 4.0 pCi/L or higher, EPA recommends fixing the home. Between 2.0 and 4.0 pCi/L, EPA says to consider mitigation, especially if the space is used often.

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My radon is high but I'm planning to sell the house in 6 months. Should I mitigate now or disclose and let the buyer deal with it?

For the radon side, focus on a reliable current reading and a clear mitigation path if the level is elevated. Real-estate paperwork, repair allowances, rental responsibilities, and closing decisions should be handled by the people managing the transaction. Bill can help with the practical radon part: what the number means, whether mitigation makes sense, and what a proper system would involve. If the reading is 4.0 pCi/L or higher, EPA recommends fixing the home. Between 2.0 and 4.0 pCi/L, EPA says to consider mitigation, especially if the space is used often.

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Related Help

Questions are fine too. Call or text Bill, or send your address and contact info, and he will take it from there.

Reviewed by Bill Dahlstrom, Illinois radon mitigation license RNM2018212.