radon in new construction 2

https://radonbasementhouse.meridiannest.com/posts/why-radon-in-basement-levels-are-often-highest-and-what-to-do-about-it

When building a new home, it's important to think about radon, a naturally occurring radioactive gas that can seep in from the soil. Even in new construction, proper sealing and a simple vent pipe system under the slab can prevent buildup, keeping your indoor air safe and healthy from day one.