radon gas risk 4

https://getradoncrawlspacewire.westhavenscope.com/posts/why-your-crawl-space-needs-radon-testing

Radon gas is a colorless, odorless radioactive threat that can seep into homes from the soil, especially in basements and crawl spaces. Long-term exposure significantly increases lung cancer risk, making testing crucial for older homes in high-radon areas, but many homeowners overlook it until it's too late.