radon in well water
https://yorkparadonprosradonwellblog.novacrestiq.com/posts/what-homeowners-should-know-about-radon-in-well-water
Radon in well water is a concern because it's a colorless, odorless gas that can seep into your home through water usage, like showers and laundry. Testing well water for radon is the only way to know if it's present, and mitigation systems can safely reduce levels to protect your family's health.