radon exposure symptoms

https://drive.google.com/file/d/1k_0QPxHUOObTnS9er7VgGef0WxNxXPHu/view?usp=sharing

Meaning, you need to install a radon reduction system at that level or higher. Radon is a tasteless, colorless and also odor-free gas that happens in soil and rocks. Beyond your residence, it remains at low degrees