Of the more than 4000 chemicals present in cigarette smoke, more than 60 have been identified as cancer causing chemicals, 11 of which are known to cause cancer in humans and 8 that have been associated with causing cancer in humans.
1 Ground water wells can also be tested for radon, then, if needed, can get a water radon mitigation system installed. 2  Installing a water radon mitigation system runs from $1,000-$4,500, and maintenance runs $0 to $150 annually. 3  To find out about radon content in a city water system, call the local water provider. It's wise to retest a home's radon level every year or two after a mitigation system is installed. 2  Most radon mitigation systems include a fan, which will need to be replaced about every 5 years. 3  Expect to pay $250-$300 to have this necessary maintenance done.
1 On average, mitigation by a professional can cost anywhere from $650 to $1,900. 2  One of the most common methods or ridding a home of radon is by installing a radon mitigation system; this keeps a constant reading as well as reduces the radon in the air. 3  A system can cost upwards of $650 to $2,100. A system can cost upwards of $650 to $2,100. 2  According to this InspectorsJournal.com forum thread, users have stated that this process can cost anywhere from $1,200 to as much as $1,900 depending on the venting and the size of the home. 3  The geographical location will play a rather big role as well.