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multuminparvo  
#1 Posted : 28 July 2010 14:08:51(UTC)
Rank: Forum user
multuminparvo

Following the soon to be come defunct HPA announcement on lowering the RADON threshold to 100bqm from 200 in homes and 400 in public places and schools do any of you guys know if the HSE are likely to seek similar standards under Ionising Radiation Regs. If they do then a lot of workplaces would need sumps barriers etc. Having been 'directed' by the HSE to test our Council buildings in the recent past I know that RADON is on their radar. This suggests a retrospective standard may be set and if so at what cost? http://www.hpa.org.uk/Ne.../100708Newadviceonradon/
Bob Howden  
#2 Posted : 28 July 2010 14:24:56(UTC)
Rank: Forum user
Bob Howden

Thanks for the 'heads up'. Wonder if this is connected to the press release I saw about a year ago where the higher risk areas were identified on a geological map? Can remember carrying out regular radon surveys when I worked in the coal industry. Your link won't work for me.
Bob Howden  
#3 Posted : 28 July 2010 14:27:15(UTC)
Rank: Forum user
Bob Howden

bob howden wrote:
Your link won't work for me.
Ah! Looks like the problem is at my end (as you were)
imwaldra  
#4 Posted : 28 July 2010 21:07:11(UTC)
Rank: Super forum user
imwaldra

The radon limits for domestic premises take account of both 'full time' occupation and vulnerable groups, so I don't think there would be a direct transfer to a typical workplace - but of course some workplaces are also residential, and may have some vulerable groups - so worth thinking about if that's the case.
johnmurray  
#5 Posted : 29 July 2010 07:50:05(UTC)
Rank: Super forum user
johnmurray

"Most radon gas breathed in is immediately exhaled and presents little radiological hazard. However, the decay products of radon (radon daughters) behave more like solid materials than a gas and are themselves radioactive. These solid decay products attach to atmospheric dust and water droplets which can then be breathed in and become lodged in the lungs and airways. Some decay products emit particularly hazardous radiation called alpha particles which cause significant damage to the sensitive cells in the lung" Liked the bit about smokers: "It also showed that the risk from radon is approximately 25 times higher for cigarette smokers than for non-smokers" http://www.hse.gov.uk/radiation/ionising/radon.htm
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