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Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
BC, I'm not dismissing your links, but I could raise such issues as 'How many unborn babies are immersed in ten metric tonnes of piss for 24 hours?' (or do I need to check my maths?), and I don't quite follow the quote "I think the consensus view is that it's something to do with timing of exposure to infection,".
We know that any exposure (to radiation) above background carries added risk, and it's about what is regarded as 'acceptable risk'.
I'd like to see some figures for areas of higher than usual radon exposure from Granite areas, although these would be even lower levels, presumably. (than the subject of these studies)
We also know (I think) that the embrionic stage is much more susceptible to radiation damage, even quite small doses.
We are also aware how much money the 'powers that be' spend trying to 'disprove' such hypotheses (remember Fukushima and the tobacco industry, for example).
Registered Member #72
Joined: Thu Feb 09 2006, 08:29AM
Location: UK St. Albans
Posts: 1659
Until someone does a double-blind placebo controlled random assigned prospective study, we'll have to make do with a bunch of selected retrospective analyses.
This means it's possible to argue around other factors like viruses (which are known to cause some cancers), selection biases and negcebos. Don't forget that clusters are also guarranteed to occur purely by chance, see Poisson distribution, seek and ye shall find them.
Notwithstanding the uncertainties, given what we know about radiation, the precautionary principle suggests that it's wise not to bathe your children in the cooling pond, or have governments allow operating companies to keep quiet about spills, leaks and reckless operating practices. It's probably easier to keep the kids out of the ponds than to be confident about the latter.
Registered Member #2529
Joined: Thu Dec 10 2009, 02:43AM
Location:
Posts: 600
I must admit this does sound fairly plausible- a moderately large prenatal dose of radiation from the released gases early on in the pregnancy could well cause leukemia much more often than a continuous low level dose.
Should be interesting to see whether this research pans out. If it's true, a way to reduce the incidence might be to change the way the reactors are maintained.
I doubt a double blind placebo study would fly, but it might be possible to do animal experiments to prove or disprove whether the mechanism is real or not.
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
BigBad wrote ...
If it's true, a way to reduce the incidence might be to change the way the reactors are maintained.
A controlled release of gases over a much longer period, but only at night when the wind is blowing out to sea, spread out over weeks or months, so the peaks are much lower, maybe?
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
Ash Small wrote ...
BC, I'm not dismissing your links, but I could raise such issues as 'How many unborn babies are immersed in ten metric tonnes of piss for 24 hours?' (or do I need to check my maths?), and I don't quite follow the quote "I think the consensus view is that it's something to do with timing of exposure to infection,".
We know that any exposure (to radiation) above background carries added risk, and it's about what is regarded as 'acceptable risk'.
I'd like to see some figures for areas of higher than usual radon exposure from Granite areas, although these would be even lower levels, presumably. (than the subject of these studies)
We also know (I think) that the embrionic stage is much more susceptible to radiation damage, even quite small doses.
We are also aware how much money the 'powers that be' spend trying to 'disprove' such hypotheses (remember Fukushima and the tobacco industry, for example).
The point I made was that all of us are perpetually exposed to levels of radiation only slightly lower that the "peaks" that these people are saying is the "cause" of leukaemia. That makes little sense.
There are a number risk factors for leukaemia- one of them is infection by viruses. It's not generally as simple as "Get the infection -> get cancer" but the more varieties of bugs you aree exposed to, the more likely it is that you will develop cancer so mixing populations will increase the risk.
Registered Member #2529
Joined: Thu Dec 10 2009, 02:43AM
Location:
Posts: 600
On the contrary, one of the main causes of leukemia will be background radiation. The assumption that background radiation is completely harmless is obviously false.
If the radiation peak hits a fetus at its peak sensitivity to radiation when it's growing, that could well explain why the incidence of leukemia seems to be raised in children around nuclear plants.
That would explain how what is a low average dose could give a significant increase in leukemia.
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
BigBad wrote ...
On the contrary, one of the main causes of leukemia will be background radiation. The assumption that background radiation is completely harmless is obviously false.
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059
I read somewhere that the amount of radioactive potassium 40 and caesium 137 in cigarette smoke is actually being researched as a significant contributor to cancer, as tobacco concentrates radionuclides.
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Radioactive spikes from nuclear plants - a likely cause of childhood leukemia
