Radon levels can fluctuate over time, so the reading you get over just a few days may not be reflective of the level of radon present in your home at other times during the year.

Long, however, warned that radon is the second most frequent cause of lung cancer, after cigarette smoking. According to the EPA’s Web site, radon causes 21,000 lung cancer deaths per year in ...

Radon is colorless, odorless and the U.S.'s second-most common cause of lung cancer. Here's where you can get a free radon test kit in Pueblo.

EVANSVILLE — There's a plan, and help available, to respond to radon levels in the Old Courthouse subbasement that were revealed Monday to be more than twice the level calling for action.

"When a radon level is at or above 4 [picocuries per liter, or pCi/L], we highly recommend installing a radon mitigation system," said Tranter. Mueller said her home's radon level tested over 30 ...

It also estimates that 34,000 homes in Massachusetts have radon levels that exceed 20 pCi/L. Dr. Laki Rousou is chief of thoracic surgery, ...

Sifton saw elevated radon levels again in 2009, when a library computer area, classroom and office had levels of 10, 11.5 and 12.2 picocuries per liter of air, respectively, over the course of a ...

The radon level in the basement of our rental home is alarmingly high at 9.5 pCi/L. We tested the main floor and found levels ranging from 4 to 6 pCi/L.

Radon exposure is believed to have killed more than 6,000 Utahns in past 30 years. Officials are proposing measures to reduce the risks associated with what they say is Utah's No. 1 geological hazard.

While CBS4 Investigates only found a radon level of 1.0 pCi/l in Alcon's home, she said she's concerned about the safety of others in the city's public housing.

Radon levels in most homes can be reduced to 2 pCi/L or below. Radon reduction systems can reduce radon levels by up to 99% and cost around $1,500 on average.