þÿ<html> <head> <meta http-equiv="Content-Language" content="en-us"> <meta name="GENERATOR" content="Microsoft FrontPage 6.0"> <meta name="ProgId" content="FrontPage.Editor.Document"> <meta http-equiv="Content-Type" content="text/html; charset=unicodeFFFE"> <title>NC Radon Program</title> <meta name="Microsoft Border" content="b, default"> </head> <body> <div align="center"> <center> <table border="0" cellpadding="2" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="98%" height="55"> <tr> <td width="76%" height="7" colspan="9"><a name="topofpage"></a> <font face="Arial"><b> <a name="topofpage0" href="http://www.dhhs.gov" style="text-decoration: none; background-color: #000080"> <font color="#FFFF00">North Carolina Department of Health and Human Services</font></a></b></font></td> <td width="24%" height="7" colspan="2"></td> </tr> <tr> <td width="69%" height="1" colspan="8" background="color84.gif"> <p align="center"><b><font size="5" color="#000080">NC Radon Program</font></b></td> <td width="34%" height="9" colspan="3" background="color84.gif" rowspan="2"> <p align="center"><a title="NC Radon Home Page" href="index.htm"> <img border="0" src="images/ncradonzonesv2.gif" width="218" height="77"></a></td> </tr> <tr> <td width="16%" height="15" bgcolor="#000080" colspan="3"></td> <td width="33%" height="15" bgcolor="#000080" colspan="3"></td> <td width="20%" height="15" bgcolor="#000080" colspan="2"></td> </tr> <tr> <td width="26%" height="6" bgcolor="#000080" colspan="4" nowrap> <p align="left"><b><font size="2" color="#FFFFFF"> <a target="_self" href="http://www.ncradiation.net/"> <font color="#FFFF00">Radiation&nbsp; Protection</font></a></font></b></td> <td width="19%" height="6" bgcolor="#000080" colspan="2"> <p align="center"><b><font size="2" color="#FFFFFF"> <a target="_self" href="list-mitigation.htm"><font color="#FFFF00">Mitigation</font></a></font></b></td> <td width="17%" height="6" bgcolor="#000080"> <p align="center"><b><font size="2" color="#FFFFFF"> <a target="_self" href="list-measurement.htm"><font color="#FFFF00">Measurement</font></a></font></b></td> <td width="18%" height="6" bgcolor="#000080" colspan="2"> <p align="center"><b><font size="2" color="#FFFFFF"> <a target="_self" href="contacts.htm"><font color="#FFFF00">Radon Contacts</font></a></font></b></td> <td width="19%" height="1" bgcolor="#000080" colspan="2"> <p align="center"><b><font color="#FFFFFF" size="2"><a target="_self" href="index.htm"> <font color="#FFFF00">NC Radon Home</font></a></font></b></td> </tr> <tr> <td width="16%" height="6" colspan="3"></td> <td width="15%" height="6" colspan="2"></td> <td width="18%" height="6"></td> <td width="20%" height="6" colspan="2"></td> <td width="15%" height="6"></td> <td width="19%" height="6" colspan="2"></td> </tr> <tr> <td width="8%" height="41" colspan="2"></td> <td width="86%" height="41" colspan="8"><b> <font size="4" color="#000080">Facts about Radon</font></b></td> <td width="9%" height="36">&nbsp;</td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="4%" height="34">&nbsp;</td> <td width="8%" height="34">&nbsp;</td> <td width="78%" height="34" colspan="7" align="center"> <u><b><span class="body"><font face="Times New Roman" size="2"><a target="_self" href="#Sources"> Sources of Radon in Your Home</a></font></span></b></u></td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="4%" height="34">&nbsp;</td> <td width="8%" height="34">&nbsp;</td> <td width="78%" height="34" colspan="7" align="center"> <u><b><span class="body"><font face="Times New Roman" size="2"><a target="_self" href="#Resistant"> Radon Resistant New Construction</a></font></span></b></u></td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="4%" height="34">&nbsp;</td> <td width="8%" height="34">&nbsp;</td> <td width="78%" height="34" colspan="7" align="center"> <u><b><span class="body"><font face="Times New Roman" size="2"><a target="_self" href="#Health"> Radon &amp; Your Health</a></font></span></b></u></td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="4%" height="34">&nbsp;</td> <td width="8%" height="34">&nbsp;</td> <td width="78%" height="34" colspan="7" align="center"> <u><b><span class="body"><font face="Times New Roman" size="2"><a target="_self" href="#Testing"> Radon Testing</a></font></span></b></u></td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="4%" height="34">&nbsp;</td> <td width="8%" height="34">&nbsp;</td> <td width="78%" height="34" colspan="7" align="center"> <b><a target="_self" href="#Radon Reduction"><font size="2">Radon Reduction &amp; Home Repairs</font></a></b></td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="1"></td> <td width="90%" height="1" colspan="9"> <p align="center"><img border="0" src="images/bluebar2.jpg" width="653" height="17"></td> <td width="9%" height="1"></td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="12%" height="34" colspan="2" valign="top">&nbsp;</td> <td width="78%" height="34" colspan="7"> <p align="justify"><font face="Times New Roman" size="2"><span class="body"> Radon is a naturally occurring, invisible, odorless gas that comes from deposits of uranium in soil, rock, and water. It is harmlessly dispersed in outdoor air, but when trapped in buildings, can be harmful, especially at elevated levels. Radon is a radioactive decay product of radium, which is a decay product of uranium.&nbsp; Uranium and radium are both common elements in soil. </span></font></p> <p class="body" align="justify"><font face="Times New Roman" size="2"> <span class="body">The EPA has a booklet <a target="_self" href="http://www.epa.gov/iaq/radon/pubs/citguide.html">A Citizen&#39;s Guide to Radon</a> which discusses general information related to radon.</span></font></p> </td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="1"></td> <td width="90%" height="1" colspan="9"> <p align="center"><img border="0" src="images/bluebar2.jpg" width="653" height="17"></td> <td width="9%" height="1"></td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="12%" height="34" colspan="2" valign="top"> <font face="Times New Roman" size="2"><u><b> <span class="bodyhead"><a name="Sources">Sources</a> of <br> Radon in <br> Your Home</span></b></u></font><p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;<p>&nbsp;<p>&nbsp;<p><span class="body"><a target="_self" href="#Top"><b><i> <font face="Times New Roman" size="2">Top of Page</font></i></b></a></span></td> <td width="78%" height="34" colspan="7"> <p align="justify"><font face="Times New Roman" size="2">Most indoor radon enters homes from the soil or rock beneath it when Radon and other<u><span class="body"><img src="images/sources.gif" alt="Sources of Radon in Homes" align="right" width="200" height="151"></span></u> gases rise through the soil and get trapped under the house. When warm air rises naturally inside the home, it creates a vacuum in the lower areas of the house. The natural reaction to this vacuum is air from beneath the structure containing radon is sucked up into the home through openings (cracks, doors, windows) on the lower levels. Radon gas enters the same way air and other soil gases enter the home; through cracks in the foundation floor or walls, hollow-block walls, and openings around floor drains, heating and cooling ductwork, pipes, and sump pumps. Once inside, the radon can become trapped and concentrated.</font></p> <p class="body" align="justify"><font face="Times New Roman" size="2">Outdoor air that is drawn into a building can also contribute to the indoor radon level. However, the average outdoor air level of radon is normally so low that it does not create a problem </font></p> <p class="body" align="justify"><font face="Times New Roman" size="2">Radon may also be dissolved in water, particularly well water. After coming from a faucet, about one ten thousandth of the radon in water is typically released into the air. The more radon there is in the water, the more it can contribute to the indoor radon level. </font></p> <p class="body" align="justify"><font face="Times New Roman" size="2">Trace amounts of uranium are sometimes incorporated into materials used in construction. These include, but are not limited to concrete, brick, granite, and drywall. Though these materials have the potential to produce radon, they are rarely the main cause of an elevated radon level in a building. <br> <br> Radon has been found in elevated levels in many counties throughout North Carolina. However homes in the coastal plain of North Carolina usually have low radon levels, while the upper piedmont and mountain areas have the greatest proportion of homes with elevated levels of radon.</font></p> </td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="1"></td> <td width="90%" height="1" colspan="9"> <p align="center"><img border="0" src="images/bluebar2.jpg" width="653" height="17"></td> <td width="9%" height="1"></td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="12%" height="34" colspan="2" valign="top"> <u><b><font size="2"><a name="Resistant">Radon Resistant</a> New Construction</font></b></u></td> <td width="78%" height="34" colspan="7"><font face="Times New Roman" size="2">If you are building a new home, <u>Radon Reduction in New Construction (RRNC) Techniques</u> can be employed to ensure radon levels will not be elevated. A passive system (without a fan) can be installed during construction. After construction, a radon test should be conducted.&nbsp; If the radon level is elevated and the radon reduction system needs to be activated, it will be easy to activate the system by installing a fan since the basics of the systems are already in place. The EPA has a document with technical guidelines entitled <a target="_self" href="http://www.epa.gov/iaq/radon/pubs/buildradonout.pdf">&quot;Building Radon Out&quot;</a> which is available online. A print copy can also be sent to you by contacting <a target="_self" href="mailto:radon@ncmail.net">Radon Coordinator</a>, Radon Specialist.</font></td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="1"></td> <td width="90%" height="1" colspan="9"> <p align="center"><img border="0" src="images/bluebar2.jpg" width="653" height="17"></td> <td width="9%" height="1"></td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="12%" height="34" colspan="2" valign="top"> <font face="Times New Roman"><u> <a name="Health"> <b class="bodyhead">Radon and Your Health</b></a></u></font><p>&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;<p>&nbsp;<p><span class="body"><a target="_self" href="#Top"><b><i> <font face="Times New Roman" size="2">Top of Page</font></i></b></a></span></td> <td width="78%" height="34" colspan="7"> <p class="body" align="justify"><font face="Times New Roman" size="2"> <img src="images/lungs.jpg" align="left" width="157" height="152">Exposure to radon is the second leading cause of lung cancer in the US behind smoking. It is estimated that radon causes about 15,000 deaths per year. </font> <p class="body" align="justify"><font face="Times New Roman" size="2">The health risk from radon occurs when it is inhaled. Radon gas decays or breaks down into radioactive particles which can damage lung cells and lead to lung cancer. Lung cancer risk is based on years of exposure and the concentration of radon to which one is exposed. The higher the radon level and number of years of exposure, the greater one&#39;s risk of developing lung cancer. </font> <p class="body" align="justify"><font face="Times New Roman" size="2">Breathing radon does not cause any short-term health effects such as shortness of breath, coughing, headaches, or fever. </font> <p class="body" align="justify"><font face="Times New Roman" size="2">Research suggests that swallowing water with high radon levels may pose risks, too, although risks from drinking water containing radon are much lower than those from breathing air containing radon. For a more detailed discussion about radon health risks go to the <a target="_self" href="http://www.epa.gov/iaq/radon/riskcht.html">EPA Health Risk Chart</a>.</font></p> </td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="1"></td> <td width="90%" height="1" colspan="9"> <p align="center"><img border="0" src="images/bluebar2.jpg" width="653" height="17"></td> <td width="9%" height="1"></td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="12%" height="34" colspan="2" valign="top"> <p align="center"><font face="Times New Roman"> <span class="bodyhead"><u><a name="Testing"><b>Radon<br> Testing</b></a></u></span><a name="Testing"><u><b> </b> </u> </a></font></p> <p align="center">&nbsp;</p> <p align="center">&nbsp;</p> <p align="center">&nbsp;</p> <p align="center">&nbsp;</p> <p align="center">&nbsp;</p> <p align="center">&nbsp;</p> <p align="center">&nbsp;</p> <p align="center">&nbsp;</p> <p align="center"><span class="body"><a target="_self" href="#Top"><b><i> <font face="Times New Roman" size="2">Top of Page</font></i></b></a></span></p> </td> <td width="78%" height="34" colspan="7"> <p class="body" align="justify"><font face="Times New Roman" size="2">While radon problems may be more common in the upper piedmont and mountain counties of North Carolina, any home may have an elevated radon level. New and old homes, well-sealed and drafty homes, and homes with or without basements can have a problem. The only way to determine the level is to conduct a <u>radon test</u>. </font></p> <p class="body" align="justify"><font face="Times New Roman" size="2">In addition, indoor radon levels vary from home to home. Do not rely on radon test results taken in other homes in the neighborhood - even ones next door - to estimate the radon level in your home. </font></p> <p class="body" align="justify"><font face="Times New Roman" size="2"> <a target="_self" href="DIY.htm">Do-it-yourself Radon test kits</a> that meet EPA requirements are available at local hardware stores, home improvement stores, some supermarkets, and other retail outlets. Most are priced under $25.00.</font></p> <p class="body" align="justify"><font face="Times New Roman" size="2"><u> Testing your home for radon</u> is as simple as opening a package, placing a radon detector in a designated area, and after the prescribed number of days, sealing the detector back in the package and mailing it to a lab for evaluation. Radon is measured in picocuries per liter of air (pCi/L), a measurement of radioactivity. The <a target="_self" href="http://www.epa.gov/iaq/radon/">US EPA </a>and the <a target="_self" href="http://www.cdc.gov">Centers for Disease Control</a> and Prevention recommend that homes with radon levels at or above 4 pCi/L be repaired to reduce the amount of radon entering the indoor air. </font></p> <p class="body" align="justify"><font face="Times New Roman" size="2">You may also have a <u>certified radon service professional</u> conduct the measurement in your home. It is highly recommended that anyone having their home measured or mitigated for radon have it done by someone that is certified by either the <a target="_self" href="http://www.radongas.org">National Environmental Health Association (NEHA)</a> or the <a target="_self" href="http://www.nrsb.org/">National Radon Safety Board (NRSB)</a>. The Environmental Protection Agency (EPA) recognizes these two agencies for certification purposes. While North Carolina has no laws concerning radon other than a radon disclosure law in real estate transactions, other states may. Be sure and check with your <a target="_self" href="http://www.epa.gov/iaq/contacts.html">State&#39;s Radon Contact</a> for this information. </font> </p> <p class="body" align="center"><b><font face="Times New Roman" size="2"> <a target="_self" href="list-Measurement.htm">List of certified Radon Testing and Measurement Service Providers in NC</a> </font></b></p> </td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="1"></td> <td width="90%" height="1" colspan="9"> <p align="center"><img border="0" src="images/bluebar2.jpg" width="653" height="17"></td> <td width="9%" height="1"></td> </tr> <tr> <td width="4%" height="34">&nbsp;</td> <td width="12%" height="34" colspan="2" valign="top"> <b><font face="Times New Roman"><u> <span class="bodyhead"><a name="Radon Reduction">Radon Reduction</a><br> &nbsp;and <br> Home Repairs</span></u></font></b><p>&nbsp;</p> <p>&nbsp;<p><span class="body"><a target="_self" href="#Top"><b><i> <font face="Times New Roman" size="2">Top of Page</font></i></b></a></span></td> <td width="78%" height="34" colspan="7"> <h3 class="subhead" align="justify"><span style="font-weight: 400"> <font face="Times New Roman" size="2"> Radon problems can sometimes be fixed by caulking cracks along basement foundations, sealing leaks around pipes, and taking other steps to prevent radon from entering the house through places where the house structure is in contact with the ground. However, sealing alone does not solve a radon problem. A home will continue to settle and the sealing material will eventually wear out. A mitigation system installed by a <u>certified professional</u> is the best way to insure that indoor radon levels will be reduced over a long period of time.</font></span></h3> <p class="body" align="justify"><font face="Times New Roman" size="2"> Homeowners should consult a qualified contractor who usually installs a pipe and fan system to vent the radon away from beneath a house. Look in your local phone directory or call your <a target="_self" href="http://www.epa.gov/iaq/contacts.html">state radon office</a> for help in locating a radon reduction (mitigation) professional if you do not live in NC.<br> <a target="_self" href="list-Mitigation.htm">List of certified Radon Reduction (Mitigation) Service Providers in NC</a><br> <a target="_self" href="MitigationNEW.htm">More about Radon Reduction and Home Repairs</a></font></p> </td> <td width="9%" height="34">&nbsp;</td> </tr> <tr> <td width="4%" height="1"></td> <td width="90%" height="1" colspan="9"> <p align="center"><img border="0" src="images/bluebar2.jpg" width="653" height="17"></td> <td width="9%" height="1"></td> </tr> <tr> <td width="8%" height="1" colspan="2"></td> <td width="8%" height="1"></td> <td width="15%" height="1" colspan="2"></td> <td width="18%" height="1"></td> <td width="20%" height="1" colspan="2"></td> <td width="15%" height="1"></td> <td width="10%" height="1"></td> <td width="9%" height="1"></td> </tr> <tr> <td width="16%" height="33" colspan="3"> <img border="0" src="images/rps-logosmall.gif" width="84" height="49"></td> <td width="68%" height="33" colspan="6" align="center"> <font size="1" face="Times New Roman"> <a target="_self" href="http://www.dhhs.gov">NC DHHS&nbsp; </a> <a target="_self" href="http://www.enr.state.nc.us">&nbsp;</a><a target="_self" href="http://www.ncradiation.net">&nbsp;Radiation Protection Section</a> <font color="#1F3D3D"><br> 1645 Mail Service Center</font><b>.</b><font color="#1F3D3D"> Raleigh, NC 27699-1645</font><b><br> </b><font color="#1F3D3D">Office (919)571-4141</font> <font color="#1F3D3D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Fax (919)571-4148</font></font></td> <td width="19%" height="28" colspan="2"> <img border="0" src="images/dhhs_logo.JPG" width="103" height="73"></td> </tr> </table> </center> </div> <p></p> </body> </html>