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Great Lakes Radon Testing & Mitigation LLC

Testing is the only way to know if you and your family are at risk from radon. EPA and the Surgeon General recommend testing all homes below the third floor for radon. EPA also recommends testing in schools.

Testing is inexpensive and easy — it should only take a few minutes of your time. Millions of Americans have already tested their homes for radon

What is Radon?

Radon is a radioactive gas. It is colorless, odorless, tasteless, and chemically inert. Unless you test for it, there is no way of telling how much is present. The Surgeon General has warned that radon is the second leading cause of lung cancer in the United States.

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Radon Control for existing houses * Great Lakes Radon Testing & MitigationThe U.S. Environmental Protection Agency (US EPA) and the Surgeon General’s Office have estimated that as many as 20,000 lung cancer deaths are caused each year by radon. Radon is the second leading cause of lung cancer. Radon-induced lung cancer costs the United States over $2 billion dollars per year in both direct and indirect health care costs. (Based on National Cancer Institute statistics of 14,400 annual radon lung cancer deaths – Oster, Colditz & Kelley, 1984)

According to the US EPA, nearly 1 in 3 homes checked in seven states and on three Indian lands had screening levels over 4 pCi/L, the EPA’s recommended action level for radon exposure.The alpha radiation emitted by radon is the same alpha radiation emitted by other alpha generating radiation sources such as plutonium.

 

What is radon?

A layman’s description – Radon is a cancer-causing radioactive gas. You cannot see,
smell or taste radon, but it may be a problem in your home. The Surgeon General has
warned that radon is the second leading cause of lung cancer in the United States today.
If you smoke and your home has high radon levels, you’re at high risk for developing
lung cancer. Some scientific studies of radon exposure indicate that children may be more sensitive to radon. This may be due to their higher respiration rate and their rapidly dividing cells, which may be more vulnerable to radiation damage.

 

Health Related Questions About Indoor Radon

What is the evidence that indoor radon exposure is really a health risk?

The earliest evidence of radon-related health risk came from long-term cohort studies of underground miners conducted over the past 60 years. This evidence was of sufficient strength by 1988 that the World Health Organization’s International Agency for Research on Cancer (IARC) classified radon and its short-lived decay products as known human carcinogens (Group 1 or Class A). Furthermore, the National Cancer Institute has led an on-going international study of 68,000 underground miner radon risks. In addition, the National Academy of Sciences’ extensive assessment of the miner and other health risks associated with indoor radon is found in Health Risks of Exposure to Radon (BEIR VI) which is available at www.nap.edu/openbook.php?record_id=5499 Based upon this report, the U.S. Environmental Protection Agency (EPA) completed EPA Assessment of Risk of Radon in Homes which is available at www.epa.gov/radiation/docs/assessment/402-r-03-003.pdf

Since the 1980s, more than 40 residential case-control studies have been conducted. Overall, these studies reflected increased risk of lung cancer in homes with elevated indoor radon. The data from 22 of these studies were pooled which allowed for more rigorous risk assessment (7 studies in North America; 13 studies in Europe; 2 studies in China). The risk estimates from these pooling studies were similar but higher than the miner cohort studies – – – thus, giving very strong evidence that radon exposure in the home increases the risk of dying from lung cancer. Further information about radon health risks is found in the World Health Organization’s WHO Handbook on Indoor Radon – A Public Health Perspective www.who.int/ionizing_radiation/env/radon/en/index1.html

The strength of the evidence of the health risk associated with indoor radon exposure led WHO to recommend that (economically developed) countries establish radon reference levels, where mitigation would be recommended, at 100 Becquerels per cubic meter (Bq/m3) or 2.7 picoCuries per liter (pCi/L). The WHO recommendation is 33% lower than the EPA 4 pCi/L Threshold for Action. The Health Physics Society, an organization of 5,500 radiation safety professionals from 44 countries, recommends reducing exposures below 2.7 pCi/L www.eurekalert.org/pub_releases/2009-11/hps-hps112509.php and www.hps.org/documents/indoorradon.pdf

I have heard that there is research that suggests that exposure to low levels of radon do not pose a health risk; is that true?

The National Academy of Sciences reviewed the health risk associated with exposure to low levels of ionizing radiation, including radon, and found, “The scientific research base shows that there is no threshold of exposure below which low levels of ionizing radiation can be demonstrated to be harmless or beneficial,” said committee chair Richard R. Monson, associate dean for professional education and professor of epidemiology, Harvard School of Public Health. “The health risks – particularly the development of solid cancers in organs – rise proportionally with exposure.” Further information is available at http://books.nap.edu/catalog.php?record_id=11340 Other organizations sharing this perspective of the National Academy of Sciences include: National Council on Radiation Protection and Measurements (NCRP) and the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR).

Furthermore, there is evidence from cohort studies of underground miners that reflect increased risk of lung cancer with radon exposure at concentrations as low as 2 pCi/L for periods of less than 2 years.

Is there evidence that radon exposure may be related to health risks other then lung cancer?

Yes, there are more than 20 studies that have examined the association of indoor radon exposure and leukemia in general as well as childhood leukemia and chronic lymphocytic leukemia. Most of these studies have been “ecological” investigations and normally ecological studies are not used for health risk assessment. Thus, this evidence should be considered more suggestive and in need for further research. Other radon-related health risks have been conducted including those involving: Alzheimer; Cardiovascular diseases; Multiple sclerosis. While some of these studies found evidence suggestive of increased risk associated with radon exposure, evidence of a clear link has not been established and further research is needed.

Source
William J. Angell
Professor and Director, Midwest Universities Radon Consortium, University of Minnesota Co-editor, WHO Handbook on Indoor Radon – A Public Health Perspective

Home Buyers

The Environmental Protection Agency (EPA) recommends that you know the indoor radon level of any home you consider buying.  Ask the seller for their radon test results. If the home has a radon-reduction system, ask the seller for any information they have about the system. If the test results are over two years old, the EPA recommends doing another test.

If the home has not yet been tested, you should have the house tested.

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