ASHEVILLE — The idea of a silent killer in your home may be frightening, but what about a killer that’s also odorless, intangible and invisible?
Radon poisoning, the second-leading cause of lung cancer after tobacco use, is just that.
With six of the eight counties with the highest radon levels in North Carolina nestled among the 18 western counties, area residents should be paying especially close attention to the elusive carcinogen.
Radon is an odorless, invisible gas that, while harmless in the open air, can be dangerous when concentrated. Seeping out of the ground, it accumulates in houses, schools and workplaces, accounting for about 21,000 deaths each year in the United States.
Radon can become more concentrated this time of year as homes are closed up and sealed for the winter.