Radon Linked to Cancer
Radon is responsible for at least 15,000 to 20,000 getting lung cancer deaths
each year in the U.S. In fact, radon exposure is the second-leading cause of
lung cancer in the United States. This tragedy is compounded by the fact that
both radon testing and radon mitigation are simple and inexpensive. While
nationally 1 in 15 homes may show dangerous levels of radon, the average levels
in many parts of the mid-Atlantic may be two to three times higher than this.
There are no immediate symptoms of radon exposure and you cannot see, taste,
feel, or smell radon. Cancer can show up five to 25 years after exposure and
about 12% of lung cancer diagnoses are caused by radon.
Where Radon Comes From
Radon is a radioactive gas that occurs naturally in the soil. It is a byproduct
of uranium decay. Radon can be found in-new homes, older homes, homes in need of
repair, homes without basements; there is no pattern. Your neighbor's home might
be radon-free, while your home has dangerous levels. Radon can come from the
ground beneath a home, well water, and various building materials. The only way
to know is to test your home, which can be done for less than $30 with a simple
kit available at most hardware stores.
Before Buying a Home:
* Ask the seller for a copy of the home's radon test results. If the home has
not been tested, ask your home inspector to include a radon test in his report.
* Make sure that the Radon Testing Checklist items were met.
* Make sure that the last test was recent, at least within the past 2 years.
* Make sure that the seller has performed the test in the lowest, livable level
of the house. This usually means the basement, but if the home has no basement,
test in the lowest level of the house.
* Ask that the home be tested again if any changes have been made to the home's
heating, ventilation, and air conditioning system since the last test was done.
* Should you decide to renovate an unfinished part of the home, test for radon
before work begins. It is much easier to install a radon system in an unfinished
room. If your test results are close to the EPA action level (4.0 pCi/l), test
the space again after work is completed.
When renovating an unfinished part of a home or building a new home, look to
minimize radon presence.
To Minimize Radon When Building a New Home:
* The integrity of the slab should be maintained at all times.
* Sump pits need to be installed with a sealed cover.
* Use a gas tight radon drain for all floor drains.
* When framing, run a radon vent pipe from the basement to the high part of the
attic. This pipe should not be to close to the attic eaves, so that a radon fan
can be easily added at a later date if needed.
* If a sump pump is not required for the basement or if the construction is slab
on grade, have drain tile looped around the perimeter of the inside of the
foundation and have it terminate with a 3 inch PVC "rough in." A 3" PVC vent
pipe is sufficient for spaces that are less than 2,000 square feet. Use a 4" PVC
"rough in" and a 4" PVC vent pipe for spaces larger than 2,000 square feet.
How to Measure Radon
Denver homeowners can test for radon themselves. Order a radon test kit and when
finished, make sure to return the radon test to the laboratory with all the
required information filled out. Be sure to follow the test kit instructions to
the letter. One of the most common mistakes is over or under exposing the
devices. A radon test result of 4 picocuries (a picocurie is one trillionth of a
curie and measures radioactivity) per liter or higher is considered to be a high
radon level. The average radon level in homes is 1.3pCi/L and .4pCi/L outdoors.
The 1.3 pCi/l national average includes homes in many regions that do not have
radon issues. Keep in mind that the 4.0 pCi/l standard was established as a
matter of practicality, not safety. EPA officials at the time were unsure
whether the technology and methods employed in 1984 were capable of reducing
radon levels further. Recent studies show a significant risk of lung cancer when
exposed at levels between 2 and 4 pCi/l. EPA recommends reducing radon levels to
below 2pCi/l if possible.
If your home does have Radon
Costs to hire a radon removal professional to lower radon levels average about
$800 to $1,200. Homes with crawl spaces or without gravel under the slab cost
more. Many radon removal configurations exist and include sub slab
depressurization (SSD), SSD with a crawl space, and air exchangers. The work
required for a successful radon mitigation are beyond the skills of most
untrained homeowners.
What to Consider When Hiring a Radon Abatement or Mitigation Firm
Ask to see proof of their certifications from National Environmental Health
Association (NEHA) and/or the National Radon Safety Board (NRSB).
Denver radon contractors must
also be licensed as home-improvement contactors in each state they wish to work.
The District of Columbia is an exception in the case of radon work.
Make
sure the contractor is fully insured.
Have
them describe all of the work they will be doing.
Sign
a contract and see that it includes all promises that were made verbally.
Don't
pay for work until it is complete. Down payments are rarely required.
Ask
for at least a 20-year transferable warranty.
Radon Abatement Services is a radon mitigation contractor serving
the greater Maryland, DC, and Virginia region. Contact them online for help with
lowering radon levels. Call 301-718-6200 or visit their website at http://
http://www.radonrepair.com/ for more
information.
Article Source:
http://EzineArticles.com/?expert=Robin_Meyer
If you are looking for a Denver Radon Contractor, please call us today at 303-915-5011 or complete our service request form.
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