The most recent instances of the effects of the pollution have been that in 1997 technetium (a dangerous radioactive isotope) were found to be exceeding EEC safe intervention level in lobsters.
And a bizarre example of how radioactive contamination can just spread through the eco-system came in 1998 when 700 feral pigeons that used a nearby garden as a roost were found to be so contaminated BNFL had to take away part of the garden's top soil it was so polluted. The pigeons had been roosting in semi-derelict parts of the vast Sellafield site.
--------------
The Sellafield Reprocessing plant in Northern England has become a source of dispute between England on one side and the other countries bordering the Irish Sea and the North Atlantic, due to its huge discharges of radioactive contamination.
--------------------
Although being a great support to the western European nuclear industry, some experts play down the significance of Finland's decision.
The International Energy Agency predicts a sharp drop in nuclear's importance in western Europe in the next 20 years, its share in electricity consumption falling to 16 percent from 31 percent by 2020. This reduction will be compensated to a greater degree by an increase in natural gas and, to a much lesser extent, growth in renewable energy.
------------------
Sweden was the first country to hold a referendum on nuclear energy in 1980 and decided to phase it out. Germany and Belgium have more recently pledged to avoid this technology in future and many other countries have explicitly said they would build no more nuclear power plants
-----
---------
Technetium-99 leaking from Sellafield site
The radioactive substance technetium-99 is leaking into the groundwater both in and around the Sellafield site, reports the British Health and Security Executive (HSE).
----------
2002-04-25 18:30
The radioactive substance technetium-99 is leaking from the Sellafield site and contaminates to the ground water table both inside and outside the site. This is being reported by the Health & Safety Executive’s (HSE) Nuclear Safety Directorate. The source of the leak is suspected to be some old tanks storing great volumes of liquid radioactive waste.
-----------
Irish reactions
The large volumes of Tc-99 being discharged into the marine environment from the Sellafield site every year have given rise to international concern. In the Irish Sea there have been detected high concentrations of the substance in both lobster and seaweed. Both the Norwegian and the Irish governments have strongly opposed the discharges. With a half-life of 213,000 years, the Tc-99, will maintain in the environment almost forever.
This radioactive nuclide is very mobile, and discharges from the Sellafield site has been detected as far north as the Barents Sea. The large amounts of Tc-99 originate from the reprocessing of so called Magnox fuel.
-----------
----- Sellafieldissä on lisäksi jotain ongelmallisia vanhoja tynnyreitä, täynnä valtavan vaarallisia radioaktiivisa jätteitä, joille eivät tiedä mitä tehdä:
Their joint report describes the tank complex as then holding 7,400 m3 of waste with a total solids content of 3,000 tonnes. The radioactive inventory of the wastes was estimated at 2,079 Tbq beta/gamma and 81 Tbq of alpha radionuclides.
HSE have now demanded BNFL to find the exact source of the leakages, and to submit a report on how they plan to stop the leakages.
BNFL plans to empty the old tanks, but how the stored liquid waste will be treated is not yet known.
----
Kaikenlaista pulmaa tuntuu löytyvän enenevästi tuosta markuksen hairahduksesta, ytinvoemasta.
"piipaa".
And a bizarre example of how radioactive contamination can just spread through the eco-system came in 1998 when 700 feral pigeons that used a nearby garden as a roost were found to be so contaminated BNFL had to take away part of the garden's top soil it was so polluted. The pigeons had been roosting in semi-derelict parts of the vast Sellafield site.
--------------
The Sellafield Reprocessing plant in Northern England has become a source of dispute between England on one side and the other countries bordering the Irish Sea and the North Atlantic, due to its huge discharges of radioactive contamination.
--------------------
Although being a great support to the western European nuclear industry, some experts play down the significance of Finland's decision.
The International Energy Agency predicts a sharp drop in nuclear's importance in western Europe in the next 20 years, its share in electricity consumption falling to 16 percent from 31 percent by 2020. This reduction will be compensated to a greater degree by an increase in natural gas and, to a much lesser extent, growth in renewable energy.
------------------
Sweden was the first country to hold a referendum on nuclear energy in 1980 and decided to phase it out. Germany and Belgium have more recently pledged to avoid this technology in future and many other countries have explicitly said they would build no more nuclear power plants
-----
---------
Technetium-99 leaking from Sellafield site
The radioactive substance technetium-99 is leaking into the groundwater both in and around the Sellafield site, reports the British Health and Security Executive (HSE).
----------
2002-04-25 18:30
The radioactive substance technetium-99 is leaking from the Sellafield site and contaminates to the ground water table both inside and outside the site. This is being reported by the Health & Safety Executive’s (HSE) Nuclear Safety Directorate. The source of the leak is suspected to be some old tanks storing great volumes of liquid radioactive waste.
-----------
Irish reactions
The large volumes of Tc-99 being discharged into the marine environment from the Sellafield site every year have given rise to international concern. In the Irish Sea there have been detected high concentrations of the substance in both lobster and seaweed. Both the Norwegian and the Irish governments have strongly opposed the discharges. With a half-life of 213,000 years, the Tc-99, will maintain in the environment almost forever.
This radioactive nuclide is very mobile, and discharges from the Sellafield site has been detected as far north as the Barents Sea. The large amounts of Tc-99 originate from the reprocessing of so called Magnox fuel.
-----------
----- Sellafieldissä on lisäksi jotain ongelmallisia vanhoja tynnyreitä, täynnä valtavan vaarallisia radioaktiivisa jätteitä, joille eivät tiedä mitä tehdä:
Their joint report describes the tank complex as then holding 7,400 m3 of waste with a total solids content of 3,000 tonnes. The radioactive inventory of the wastes was estimated at 2,079 Tbq beta/gamma and 81 Tbq of alpha radionuclides.
HSE have now demanded BNFL to find the exact source of the leakages, and to submit a report on how they plan to stop the leakages.
BNFL plans to empty the old tanks, but how the stored liquid waste will be treated is not yet known.
----
Kaikenlaista pulmaa tuntuu löytyvän enenevästi tuosta markuksen hairahduksesta, ytinvoemasta.
"piipaa".
Vastaukset 4
Vanhimmat
Diagnostiikka valmiste Tc-99m annos sydöntutkimukseen
on 370-555 MBq.
Sellafieldilla melskaajat puhuu jopa 6.5 Becquerellistä merivesikuutio.
Joutuisittakohan te juomaan 100 miljoonaa kuutiota merivettä että
saisitte saman tutkimusannoksen kuin tuossa
sydändiagnostiikassa ?.
-Biologinen puoliintumisaika vaihtelee mutta se on 0.5..22 d.
75% häviää puolliintumisajalla 1.6 vrk, 5% häviää puoliintumisajalla
22 vrk.
-se on beta-säteilijä, siis mitä vaarattomin verrattuna alfa-säteilijä
radoniin, jota saa olla 1000 Bq/kuutio ennenkuin STUK alkaa
suositella rajoituksia.
* http://www.stoller-eser.com/FactSheet/direct.htm
------------------------------------
Selvimmän todisteen vaarattomuudesta saa Irlannin
säteilysuojelun instituutista (RPII):
*http://www.rpii.ie/reports/2000/m9899.html
------------------------------------
-Since 1994 the commissioning and operation of new facilities at Sellafield
have resulted in an increase in the discharges of technetium-99 to the Irish
Sea. This has been reflected in an increase in the activity concentrations of
this radionuclide at all east coast sampling sites between 1994 and 1999.
However, the low radiotoxicity of technetium-99 means that it is generally
of lesser radiological significance than caesium-137. For the first year since
1994, a decrease in the mean activity concentrations of technetium-99 was
observed in north-east coastline samples during 1998 and this trend
continued in 1999.
The main pathway contributing to the exposure of the Irish public is the
consumption of seafood. The committed effective doses to heavy consumers
of seafood due to measured artificial radionuclides were 1.42 µSv in 1998
and 1.33 µSv in 1999. Of this, caesium-137 is the dominant radionuclide,
accounting for approximately 60% of the total dose. The dose to the Irish
population due to this radionuclide has declined significantly over
the last two
decades. For example, in 1982 the dose due to caesium-137 to heavy
consumers was estimated to be approximately 70 µSv. This had fallen to
0.83 and 0.82 µSv in 1998 and 1999, respectively.
These doses may be put into context by comparing them with the dose
attributable to the presence of the naturally occurring radionuclide,
polonium-210, in seafood. This has been estimated to be 148 µSv for heavy
seafood consumers. The estimated doses may also be compared with the
annual average dose of approximately 3000 µSv from all sources of radiation
received by members of the Irish public. The dose received in 1998 and 1999
by a heavy seafood consumer corresponds to a risk of developing a fatal
cancer of approximately one in 13 million.
------------------------------------
Toisin sanoen :
-Cesium merkittävämpi, sen ja teknetiumin yhteinenkin annoslisä
jää alle 0.002 mSv luokkaan meriruuasta vuodessa, kun se
luonnostaan voi sisältää 0.148 mSv.
Verrattakoon, että jos tulen yhdeksi päiväksi lomailemaan
sinne Helsinkiin niin voin odottaa 0.006mSv:n säteilyannoslisän
koska Helsingissä maa on uraanipitoisempaa kuin täällä Oulussa.
-Jos kaikki suomalaiset menee sinne kuluttamaan raskaasti meren
antimia sieltä, niin 1 suomalainen 3:ssa
vuodessa saisi "Sellafield-lisä"syövän, riski vastannee noin
luokkaa 1 savukkeen polttamista 3:ssa vuodessa.
-Itse asiassa Suomalaisen säteilyannos vähenee,jos muuttaa
Irlantiin irlantilaisten kalastajien mieliasiakkaaksi, johtuen taas
suomalaisten kallioiden suuresta uraanipitoisuudesta.
Oleellisempaa on taas keskittyä naapurin polttovoimalaan,
jos haluaa vähentää riskiä. Siis tehän ette itse polta..
31.5. olisi kuulemma kansainvälinen savuton päivä ? Koettakaa.
terv. Mr.K.A.T.
Multa on pienenä gammaluodattu pää migreenin takia.
Myös sydän on tutkittu samaan tapaan radioaktiivisella
isotoopilla.
Suht. normaalia diagnostiikkaa ja annokset mitätön riski
verrattuna siihen yhteen tupakka-askiin jonka pienenä poltin.
terv. Mr.K.A.T.-sydänleikattu
> And a bizarre example of how radioactive
> contamination can just spread through the eco-
> system came in 1998 when 700 feral pigeons that
> used a nearby garden as a roost were found to
> be so contaminated BNFL had to take away part
> of the garden's top soil it was so polluted.
> The pigeons had been roosting in semi-derelict
> parts of the vast Sellafield site.
Kuinka paljon säteilyä?
> The Sellafield Reprocessing plant in Northern
> England has become a source of dispute between
> England on one side and the other countries
> bordering the Irish Sea and the North Atlantic,
> due to its huge discharges of radioactive
> contamination.
Kuinka paljon säteilyä?
> The radioactive substance technetium-99 is
> leaking into the groundwater both in and around
> the Sellafield site, reports the British Health
> and Security Executive (HSE).
Kuinka paljon säteilyä?
> The radioactive substance technetium-99 is
> leaking from the Sellafield site and
> contaminates to the ground water table both
> inside and outside the site. This is being
> reported by the Health & Safety Executive’s
> (HSE) Nuclear Safety Directorate. The source of
> the leak is suspected to be some old tanks
> storing great volumes of liquid radioactive
> waste
Kuinka paljon säteilyä?
> The large volumes of Tc-99 being discharged
> into the marine environment from the Sellafield
> site every year have given rise to
> international concern. In the Irish Sea there
> have been detected high concentrations of the
> substance in both lobster and seaweed. Both the
> Norwegian and the Irish governments have
> strongly opposed the discharges. With a half-
> life of 213,000 years, the Tc-99, will maintain
> in the environment almost forever.
> This radioactive nuclide is very mobile, and
> discharges from the Sellafield site has been
> detected as far north as the Barents Sea. The
> large amounts of Tc-99 originate from the
> reprocessing of so called Magnox fuel.
Kuinka paljon säteilyä? Ps. Jos puoliintumisaika on noin pitkä, se säteilee aineena todella vähän.
> Sellafieldissä on lisäksi jotain ongelmallisia
> vanhoja tynnyreitä, täynnä valtavan vaarallisia
> radioaktiivisa jätteitä, joille eivät tiedä
> mitä tehdä:
Eivät ole raukat vielä keksineet haudata niitä kuten muutakin ydinjätettä. No, onneksi Suomi voi näyttää mallia...
> Their joint report describes the tank complex
> as then holding 7,400 m3 of waste with a total
> solids content of 3,000 tonnes. The radioactive
> inventory of the wastes was estimated at 2,079
> Tbq beta/gamma and 81 Tbq of alpha
> radionuclides.
Joo aika ilkeästi säteilee kuten suuri osa ydinjätteestä, aivan kuten Suomessakin. Mutta se ei edelleenkään kerro paljonko sitä säteilyä on Irlannin ja Norjan rannikolla.
> Kaikenlaista pulmaa tuntuu löytyvän enenevästi
> tuosta markuksen hairahduksesta, ytinvoemasta.
Totta. Kyllähän siinä pulmia on. Kuten KAIKISSA energiantuotantomuodoissa. Ydinvoimassa ne pulmat voidaan tosin hoitaa hyvin eivätkä aiheuta ongelmia, toisin kuin esim. fossiiliset polttoaineet joiden suurin pulma eli saasteet tuupataan edesvastuuttomasti ilmakehään...
Nyt makella taas viiraa.