Chimp_Logic wrote on Dec 5
th, 2013 at 4:05pm:
muso wrote on Dec 5
th, 2013 at 10:43am:
Source?
By the way on the subject of low level radiation, there is plenty of evidence that low levels of radiation (between 100mSv and 250mSv/year) actually reduce the risk of cancer due to increased DNA repair. That's including internal and external doses. I mentioned Radium Springs once before, but here's another example:
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You don't quite understand the local ramifications of INTERNAL exposure to radiation.
Cells in the direct vicinity of a radioactive particle receive orders of magnitude higher doses of radiation than the averaged out external exposure.
Of course I undestand this. I also realise that some elements bioaccumulate while others pass straight through.
Quote:To suggest that you can gallop into the Japan and gobble up Cs137 laced rice
Cs137 is the least of your worries. It matabolises quite readily. All depends on the dose of course.
Quote:and gorge yourself on Plutonium tuna and Americium peaches just because a couple of studies show beneficial effects of radiation, is very disingenuous of you muso - or at least displays a gross lack of understanding of the problem humanity is dealing with.
What is the mechamism for mobilisation of Plutonium? Japan has been living with trace quantities of Pu as a result of the Hiroshima and Nagasaki detonations - but how did the Pu mobilise itself in the case of Fukushima? The same goes for Am-241, which is a Pu daughter isotope.
Quote:You need to explain the inadequacy of the 1950s ICRP model for health risk associated with radiation exposure.
"....Scientific Secretary Emeritus Dr. Jack Valentin, who admits that the ICRP recommendations cannot be applied to post-accident situations and that it is a mistake not to address studies which falsify ICRP's model."
The most thorough risk model that also takes into account internal exposure to radiation is the one used by the European Committee on Radiation Risk (ECRR model)
You need to explain the 1.4 million additional deaths that have resulted from the Chernobyl meltdown and fallout SO FAR.
There is an obvious threshold for radiation dose, as there is with any other toxin. OK, if you're writing a Safety procedure, then the Linear No threshold model is nice and conservative, but it's obviously wrong. The UN accepts that it's wrong and the UNSCEAR, has recently (2012) recommended policies that do not agree with the Linear No-Threshold model at exposure levels below background levels of radiation to the UN General Assembly from the Fifty-Ninth Session of the Committee. Its recommendation states that "the Scientific Committee does not recommend multiplying very low doses by large numbers of individuals to estimate numbers of radiation-induced health effects within a population exposed to incremental doses at levels equivalent to or lower than natural background levels."
Common sense prevails. Anybody who has had anything to do with radiological dose, as I have, knows that this is common sense.
We live on a planet with natural radioactvity. In the geological past, levels have been higher. Do you deny this? Life has adapted in conjunction with this radiation. In fact there is considerable evidence that errors in DNA replication, lead to mutations, an essential ingredient for evolution. There is also evidence that low levels of radiation has a healing effect. The healing springs at Radium, Canada were well known for their effectiveness in healing minor and not so minor illnesses including rheumatism and arthritis.
Evidence from the survivors of Hiroshima showed that those with low doses of radiation were less likely to develop cancers, and that the response to dose was anything but linear.
Chimp, I am not defending the Nuclear Industry. There were obvious flaws in the planning of the siting of Fukushima 1, obvious problems in the way that Tepco has dealt with the situations, and vast chasms in their Risk Communication strategy.
I understand this, and no nuclear power station should have been sited in an area such as this close to Tectonic plates.
What I object to is the unnecessary panic that is being caused by inaccurate and nonsensical reports.
The fatality rate for Chernobyl that you quote are based on attributing every single death from cancer to the incident. That is clearly not correct.
The fact of life is that nuclear activists tend to grossly exaggerate to the point of being nonsensical. At the same time, Tepco is guilty of covering up or delaying the release of some information. To find the truth of the matter requires individual thought.
You didn't provide a source. I presume that's because it's from one of the more feral actvist sites, and you were embarrassed to divulge that fact.