https://www.designingbuildings.co.uk/w/index.php?action=history&feed=atom&title=RadonRadon - Revision history2026-05-20T10:21:29ZRevision history for this page on the wikiMediaWiki 1.17.4https://www.designingbuildings.co.uk/w/index.php?title=Radon&diff=180941&oldid=prevDesigning Buildings at 08:46, 6 November 20202020-11-06T08:46:09Z<p></p>
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</table>Designing Buildingshttps://www.designingbuildings.co.uk/w/index.php?title=Radon&diff=179462&oldid=prevEditor at 16:44, 26 October 20202020-10-26T16:44:08Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>‘…a naturally occurring radioactive colourless and odourless gas which is formed in small quantities by radioactive decay wherever uranium and radium are found. It can move through the subsoil and so into buildings. Some parts of the country, notably the West Country, have higher levels than elsewhere. Exposure to high levels for long periods increases the risk of developing lung cancer. To reduce this risk all new buildings, extensions and conversions, whether residential or non-domestic, built in areas where there may be elevated radon emissions, may need to incorporate precautions against radon.’</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>‘…a naturally occurring radioactive colourless and odourless gas which is formed in small quantities by radioactive decay wherever uranium and radium are found. It can move through the subsoil and so into buildings. Some parts of the country, notably the West Country, have higher levels than elsewhere. Exposure to high levels for long periods increases the risk of developing lung cancer. To reduce this risk all new buildings, extensions and conversions, whether residential or non-domestic, built in areas where there may be elevated radon emissions, may need to incorporate precautions against radon.’</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Radon is a naturally occurring radioactive gas released as part of the uranium 238 decay scale. All rocks and soils contain uranium – some more than others – e.g. granite, sandstone, limestone. It travels to the surface through gaps and cracks in the rock</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Radon is a naturally occurring radioactive gas released as part of the uranium 238 decay scale. All rocks and soils contain uranium – some more than others – e.g. granite, sandstone, limestone. It travels to the surface through gaps and cracks in the rock<ins class="diffchange diffchange-inline">.</ins></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Areas like Cornwall, where the rock is very fissured, means that radon can escape freely, so levels in buildings can be very high. Areas like Aberdeen, where the rock is very solid, the radon cannot escape and so radon levels tend to be very low.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Areas like Cornwall, where the rock is very fissured, means that radon can escape freely, so levels in buildings can be very high. Areas like Aberdeen, where the rock is very solid, the radon cannot escape and so radon levels tend to be very low.</div></td></tr>
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</table>Editorhttps://www.designingbuildings.co.uk/w/index.php?title=Radon&diff=167977&oldid=prevEditor at 16:14, 20 July 20202020-07-20T16:14:30Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Managing risks in existing buildings: An overview of UK risk-based legislation for commercial and industrial premises (FB 86).</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Managing risks in existing buildings: An overview of UK risk-based legislation for commercial and industrial premises (FB 86).</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Methane and other gasses from the ground.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Methane and other gasses from the ground.</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon: Guidance on protective measures for new buildings BR 211.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon: Guidance on protective measures for new buildings BR 211.</div></td></tr>
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</table>Editorhttps://www.designingbuildings.co.uk/w/index.php?title=Radon&diff=120585&oldid=prevDesigning Buildings at 14:35, 18 November 20182018-11-18T14:35:32Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon protection for new dwellings GG 74.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon protection for new dwellings GG 74.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon protection for new large buildings GG 75.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon protection for new large buildings GG 75.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Radon solutions in older homes GR 38.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site appraisal.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site appraisal.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site investigation.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site investigation.</div></td></tr>
</table>Designing Buildingshttps://www.designingbuildings.co.uk/w/index.php?title=Radon&diff=113332&oldid=prevDesigning Buildings at 12:50, 5 August 20182018-08-05T12:50:04Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon protection for new dwellings GG 74.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon protection for new dwellings GG 74.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Radon protection for new large buildings GG 75.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site appraisal.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site appraisal.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site investigation.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site investigation.</div></td></tr>
</table>Designing Buildingshttps://www.designingbuildings.co.uk/w/index.php?title=Radon&diff=112811&oldid=prevDesigning Buildings at 07:34, 28 July 20182018-07-28T07:34:19Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon: Guidance on protective measures for new buildings BR 211.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon: Guidance on protective measures for new buildings BR 211.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon protection for new domestic extensions and conservatories with solid concrete ground floors (GG 73 revised).</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon protection for new domestic extensions and conservatories with solid concrete ground floors (GG 73 revised).</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Radon protection for new dwellings GG 74.</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site appraisal.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site appraisal.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site investigation.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site investigation.</div></td></tr>
</table>Designing Buildingshttps://www.designingbuildings.co.uk/w/index.php?title=Radon&diff=111292&oldid=prevDesigning Buildings at 07:35, 15 July 20182018-07-15T07:35:52Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon: Guidance on protective measures for new buildings BR 211.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Radon: Guidance on protective measures for new buildings BR 211.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Radon protection for new domestic extensions and conservatories with solid concrete ground floors (GG 73 revised).</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site appraisal.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site appraisal.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site investigation.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Site investigation.</div></td></tr>
</table>Designing Buildingshttps://www.designingbuildings.co.uk/w/index.php?title=Radon&diff=83832&oldid=prevDesigning Buildings at 07:57, 30 July 20172017-07-30T07:57:04Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Deleterious materials.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Deleterious materials.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Designing to reduce the chemical, biological and radiological vulnerability of new buildings (IP 7/15).</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Ground conditions.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Ground conditions.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Landfill tax.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Landfill tax.</div></td></tr>
</table>Designing Buildingshttps://www.designingbuildings.co.uk/w/index.php?title=Radon&diff=83311&oldid=prevDesigning Buildings at 09:02, 22 July 20172017-07-22T09:02:23Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Landfill tax.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Landfill tax.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Managing risks in existing buildings: An overview of UK risk-based legislation for commercial and industrial premises (FB 86).</ins></div></td></tr>
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</table>Designing Buildingshttps://www.designingbuildings.co.uk/w/index.php?title=Radon&diff=77961&oldid=prevDesigning Buildings at 07:05, 20 May 20172017-05-20T07:05:59Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Contaminated land.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Contaminated land.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* Cover systems for land regeneration - thickness of cover systems for contaminated land (BR465).</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Deleterious materials.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Deleterious materials.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Ground conditions.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* Ground conditions.</div></td></tr>
</table>Designing Buildings