Are radon levels higher in the winter?
http://gunneruxwu263.theburnward.com/top-7-showing-suggestions-to-offer-your-home-faster
Radon is a rogue. It enters into an unwary household's house and created chaos. It's also quite excellent at going undetected. In fact, radon isn't noticeable by human senses. So no one could simply enter a house