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icrpaedia>Carr at 18:30, 19 March 2018

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<span style= "font-size:115%;"> '''There is strong evidence that exposure to radon can cause lung cancer. Radon exposure is the second leading cause of lung cancer after smoking.''' </span>

Smokers are more at risk from radon exposure than non-smokers. A lifetime of exposure to radon at 100 [[Radon: Units of Measure|Bq/m<sup>3</sup>]] increases the risk of lung cancer by 0.1% for non-smokers, and 2% for smokers.

More precisely, for an average radon concentration of 100 [[Radon: Units of Measure|Bq/m<sup>3</sup>]], the lifetime risk of lung cancer for non-smokers is 0.5% (compared with a risk of 0.4% in the absence of radon). For lifelong smokers, the risk is 12% (compared with a risk of 10% in the absence of radon).

'''From the WHO Factsheet on Indoor Radon:'''

<blockquote> "Radon is the most important cause of lung cancer after smoking. It is estimated that radon causes between 3–14% of all lung cancers in a country, depending on the average radon level and the smoking prevalence in a country.” </blockquote>

<blockquote> “… the risk of lung cancer increases … with increasing radon exposure.” </blockquote>

{|
|style="border: 1px solid #4682B4;" | The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) is the leading international body on radiation levels and effects. Visit the [http://www.unscear.org/ UNSCEAR website] or read the UNEP report on [https://wedocs.unep.org/handle/20.500.11822/7790;jsessionid=E71B4A7CFB4A79AB88CAC19654B2CBF7 "Radiation Effects and Sources"] based on UNSCEAR work to learn more
|}

==<span class="mw-collapsible-headline">Quotes from ICRP Publications</span>==

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'''Lung Cancer: ''Publication 115'' paragraph 55'''
<blockquote> … There is compelling evidence from cohort studies of underground miners and from case–control studies of residential radon exposures that radon and its progeny can cause lung cancer…

… The cumulative risk of lung cancer up to 75 years of age for lifelong non-smokers is estimated to be 0.4%, 0.5%, and 0.7% for radon activity concentrations of 0, 100, and 400 Bq/m3, respectively…

…The cumulative risks of lung cancer for lifelong smokers by 75 years of age are close to 10%, 12%, and 16% for radon activity concentrations of 0, 100, and 400 Bq/m3, respectively…

… Cigarette smoking remains the most important cause of lung cancer… </blockquote>

'''Other Cancers: ''Publication 115'' paragraph 39'''
<blockquote> … review of the available epidemiological evidence shows no consistent evidence for an association between radon concentration and cancer, other than lung cancer. </blockquote>

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==See Also==

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<li style="display: inline-block; vertical-align: top;">
[[File:ICRPGuide.JPG|thumb|none|100px|link=ICRPædia Guide to Radon|<center>[[ICRPædia Guide to Radon]]</center>]]
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[[File:RadonSeeAlso3.jpg|thumb|none|130px|link=http://www.icrp.org/publication.asp?id=ICRP%20Publication%20115 |
<center>[http://www.icrp.org/publication.asp?id=ICRP%20Publication%20115 ICRP ''Publication 115'' Lung Cancer Risk from Radon and Progeny and Statement on Radon]</center>]]
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<li style="display: inline-block; vertical-align: top;"> [[File:RadonSeeAlso5.jpg|thumb|none|200px|link=http://www.who.int/mediacentre/factsheets/fs291/en/| <center>[http://www.who.int/mediacentre/factsheets/fs291/en/ WHO Factsheet on Indoor Radon]</center>]]
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[[File:RadonSeeAlso2.jpg|thumb|none|200px|link={{filepath:ICRPRadonSummary.pdf}}|<center>[[Media:ICRPRadonSummary.pdf |Expert Summary of ICRP Recommendations on Radon]]</center>]]
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<li style="display: inline-block; vertical-align: top;">
[[File:RadonSeeAlso4.jpg|thumb|none|150px|link=http://www.icrp.org/publication.asp?id=ICRP%20Publication%20126|<center>[http://www.icrp.org/publication.asp?id=ICRP%20Publication%20126 ICRP ''Publication'' 126 Radiological Protection against Radon Exposure]</center>]]
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[[File:RadonSeeAlso6.jpg|thumb|none|150px|link=http://apps.who.int/iris/bitstream/10665/44149/1/9789241547673_eng.pdf|<center>[http://apps.who.int/iris/bitstream/10665/44149/1/9789241547673_eng.pdf WHO Handbook on Indoor Radon]</center>]]
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<li style="display: inline-block; vertical-align: top;">
[[File:Unep.jpeg|thumb|none|110px|link=https://wedocs.unep.org/handle/20.500.11822/7790;jsessionid=E71B4A7CFB4A79AB88CAC19654B2CBF7|<center>[https://wedocs.unep.org/handle/20.500.11822/7790;jsessionid=E71B4A7CFB4A79AB88CAC19654B2CBF7 UNEP report on Radiation Effects and Sources]</center>]]
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