What can significantly affect indoor radon levels?

The structural integrity of buildings plays a crucial role in determining indoor radon levels. Radon is a naturally occurring radioactive gas that is released from the decay of uranium, which is found in soil and rock. Its ability to enter homes and buildings is predominantly influenced by how well those structures are designed and built.

For instance, cracks in walls and floors, gaps in construction, and the overall foundation integrity can provide pathways for radon to seep indoors. Poorly ventilated crawl spaces or basements can exacerbate the accumulation of radon since these areas often have higher concentrations of the gas due to their proximity to the ground.

Conversely, while outdoor temperature and wind patterns can influence the distribution of radon gas in the atmosphere, they do not have a direct impact on the levels found indoors. Similarly, the type of paint used in a building might slightly affect surface emissions but has little to no significant effect on the overall radon concentration within a home. Thus, focusing on structural aspects is key to understanding and mitigating radon exposure risks effectively.