Fukushima Daiichi: the situation (one year) after (ASN and IRSN)

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izentrop
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by izentrop » 11/03/19, 09:11

Hello,
Leo Maximus wrote: Tritium disappears by destroying DNA ...
Source for this extraordinary statement?
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Leo Maximus
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Leo Maximus » 11/03/19, 15:26

izentrop wrote:Hello,
Leo Maximus wrote: Tritium disappears by destroying DNA ...
Source for this extraordinary statement?

Tritium is carcinogenic, mutagenic and teratogenic.

Tritium 3H acts from the inside by replacing ordinary hydrogen 1H. The decay of tritium into helium 3He damages or destroys DNA.

The scientific documentation on this subject is very abundant, except at home because it does not cross our borders. Move along, nothing to see...

TEPCO does not want to reject tritium at sea because the Japanese do not want to eat fish with carcinogenic, mutagenic and teratogenic tritium.
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by izentrop » 11/03/19, 15:49

Leo Maximus wrote:The scientific documentation on this subject is very abundant, except at home because it does not cross our borders. Move along, nothing to see...
Here then ! Conspiracy theory : Mrgreen:
Tritium is legally 27 part of the weakest radiotoxicity group (group 4). Given its very low radiotoxicity, excess cancer is expected only for exposures of the order of giga-becquerel.

Tritium only delivers (on average, per person in the vicinity of the installations concerned) an annual dose of around 1 microsievert (µSv), a thousand times less than the limit for the public which is 1 millisievert28. At the doses usually encountered, epidemiological studies do not show an excess of cancers attributable to tritium18. Christian Bataille, in his report29 on the management of nuclear waste, however, stated that tritium "presents undeniable dangers to human health that should never be forgotten. " https://fr.wikipedia.org/wiki/Radiotoxi ... ur_de_dose
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Leo Maximus
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Leo Maximus » 12/03/19, 08:57

izentrop wrote:
Tritium is legally 27 part of the weakest radiotoxicity group (group 4). Given its very low radiotoxicity, excess cancer is expected only for exposures of the order of giga-becquerel

The Gbq? : Shock: It is exactly the opposite.

- In the case of lithium, the absence of cellular toxicity induces an additional danger. Tritium settles everywhere, in the heart of DNA, where "it bides its time" ... :)

- Unlike the case of gamma radiation emitters, genomic rearrangements are strongly induced in the field of low doses, because it is installed in the DNA of all cells, animal or plant. You can not stop progress... : Mrgreen:

- So: the ionizing radiations emitted by the tritium can cause various DNA damage.
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Leo Maximus » 20/03/19, 22:02

"...the absence of cellular toxicity induces an additional danger... "
"...Contrary to the case of gamma radiation emitters, genomic rearrangements are strongly induced in the field of low doses... "
"...ionizing radiation from tritium can cause various DNA damage... ".

These are extracts from pages 74/75 of the report entitled "Tritium in the environment" published by IRSN (Institute for Radiation Protection and Nuclear Safety). IRSN is a public body.

This report can be downloaded here: https://www.irsn.fr/FR/Larecherche/publ ... ement.aspx
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Bardal
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Bardal » 24/03/19, 09:32

The total annual production of Tritium for the French nuclear fleet is around 25 g (twenty five grams); oxidized in water, the volume would be about 150 mL, or one sixth of a liter (a can of beer). Storing this production over 50 years would represent a volume of 10 liters of water, which would naturally lose its radioactivity, initially already very low, by 50% every 12 years; which means that after 50 years, the first samples would have a radioactivity lower than the natural radioactivity of tritium in natural environments…

Are you sure you didn't go to war against windmills? And don't you have any more important alarm topics to deal with?
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Leo Maximus » 30/03/19, 17:18

bardal wrote:The total annual production of Tritium for the French nuclear fleet is around 25 g (twenty five grams); oxidized in water, the volume would be about 150 mL, or one sixth of a liter (a can of beer). Storing this production over 50 years would represent a volume of 10 liters of water, which would naturally lose its radioactivity, initially already very low, by 50% every 12 years; which means that after 50 years, the first samples would have a radioactivity lower than the natural radioactivity of tritium in natural environments…

Are you sure you didn't go to war against windmills? And don't you have any more important alarm topics to deal with?

This is pure Anne Lauvergeon juice! : Lol: Congratulations!

The specific activity of tritium is so "low" that it is only 9621 times higher than that of radium 226 ! And it is double that of polonium 210, another "harmless" radioelement too since it is found in nature ... : Mrgreen:

1 gram of tritium => 356,0 TBq
1 gram of radium 226 => 0,0037 Tbq
1 gram of polonium 210 => 166 TBq

The 25 grams of tritium per year rejected by the French nuclear fleet therefore represent an activity of 8900 TBq. It's nothing, it's just the equivalent of a quarter ton (!) Of radium-226. So it's transportable in any van : Lol:

And we have to add the much larger releases from La Hague. Plus those of Sellafield / Windscale in the UK.

Fukushima Daiichi's "beer cans" of tritiated water:

HTO Fukushima 11-2018.jpg
HTO Fukushima 11-2018.jpg (56.37 KB) Viewed 3499 times

We exceeded one million tonnes this winter. How much tritium are in these "beer cans"? Reply : 2,5 grams.
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Bardal » 30/03/19, 20:16

I think you mix the pedals a little in all these scary stories:

- 25 g of tritium, that's what the entire French fleet (including La Hague) emits ... Do not confuse with the contaminated water of Fukushima ... which probably contains a little tritium ...

- 1 Becquerel, it is an atom which disintegrates per second; it is an extremely small unit (an ordinary person naturally emits around 10000 Becquerels). In addition, it says nothing about the type of radioactive emission, it is only an indication of the half-life of the element in question (12 years for tritium), even less on its energy and its radiotoxicity. Your comparisons with curium are quite fanciful; they just prove that you don't understand anything about radioactivity.

- The radiation emitted by tritium is beta radiation of very low energy, unable to pass through a cell, or even an inch of air; you should only drink water contaminated with tritium for a year to reach one hundredth of the dose due to natural radioactivity in Paris.

So stop trying to scare the kids with this bogeyman story, and go document it a bit. You have the right to be anti-nuk, even if it is due to your ignorance ... But ignorance cannot excuse everything.

NB In Fukushima, despite these millions of m3, there is still no victim of radioactivity (NO victim); despite a major disaster, which killed nearly 20 people due to the tsunami. Compassion sometimes has suspicious priorities.
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Leo Maximus » 30/03/19, 22:23

The tritiated water stored at Fukushima Daiichi contains 890000 Bq / l of tritium. This figure is given by Tepco on its visithttp: //www.tepco.co.jp/index-j.html

The radiation of tritium 3He is unable to cross the cell, absolutely. But tritium 3H replaces ordinary hydrogen 1H in DNA. So it settles in the very heart of the cell.

The radiation of tritium (beta + antineutrino = 18,6 keV) has an energy more than 3000 times greater than the minimum necessary to destroy the bonds in DNA (5 eV only). The radiation of tritium 3He is unable to cross the cell but destroys the cell from the inside.

DNA - Tritium.jpg
DNA - Tritium.jpg (34.96 KB) Consulted 3475 times

DNA - Tritium (2) .jpg
DNA - Tritium (2) .jpg (32.28 KiB) Viewed 3475 times

セ シ ウ ム = cesium
ト リ チ ウ ム = tritium
ベ ー タ = beta
ガ ン マ = gamma

Did I say somewhere that I was anti-nuk? Anything ... I worked in the nuclear industry, in EDF power plants in Tricastin and Chinon as well as in SNLE and I was DATR.
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Re: Fukushima Daiichi: the situation (one year) after (ASN and IRSN)




by Leo Maximus » 30/03/19, 23:00

DNA - Tritium.jpg
DNA - Tritium.jpg (34.96 KB) Consulted 3462 times

On the left the normal water molecule with:
1 oxygen atom 酸 素 (sanso)
2 hydrogen atoms 水 素 (suiso)

Right the tritiated water molecule with:
1 oxygen atom 酸 素 (sanso)
1 and 2 atoms of ト リ チ ウ ム = tritium

Everyone understood, anyway ... :D .
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