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Detection of radioactive iodine at trace levels in Europe in January 2017

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Re: Detection of radioactive iodine at trace levels in Europe in January 2017

#21

Post by sneak »

en wrote: post #5

The releases of January 2017 are 10,000 times lower than those observed (in France) following the Fukushima incident[0] CRIIRAD[1] believes that the meteorological conditions (and air pollution actually in Europe) and (legal) authorizations of iodine-131 releases by the industry are the cause of this event which could have passed unnoticed[0] It is an unimportant event. [0] http://www.criirad.org/balises/CRIIRAD_1702…

Maybe unimportant from a health standpoint. I'm not worried at all for safety but I sure as hell want to know the root cause. It is extremely anomalous.

Re: Detection of radioactive iodine at trace levels in Europe in January 2017

#22

Post by en »

Haldir wrote: post #19
en wrote: post #5

The releases of January 2017 are 10,000 times lower than those observed (in France) following the Fukushima incident[0] CRIIRAD[1] believes that the meteorological conditions (and air pollution actually in Europe) and (legal) authorizations of iodine-131 releases by the industry are the cause of this event which could have passed unnoticed[0] It is an unimportant event. [0] http://www.criirad.org/balises/CRIIRAD_1702…

Are you certain you have your scaling factor correct? Your Link and also https://www.bfs.de/DE/themen/ion/umwelt/luft-boden/spurenmes... report ~50micro Becquerel/m3. Not sure how you calculated 10000 as the scaling factor.

9 mBq/m3 mesured for Fukushima (France, Valence). IRSN reports 1.5 µBq/m3 (gaseous + particulate fractions) or 0.31 µBq/m3 (particulate) for this event.

Re: Detection of radioactive iodine at trace levels in Europe in January 2017

#23

Post by manarth »

Haldir wrote: post #19
en wrote: post #5

The releases of January 2017 are 10,000 times lower than those observed (in France) following the Fukushima incident[0] CRIIRAD[1] believes that the meteorological conditions (and air pollution actually in Europe) and (legal) authorizations of iodine-131 releases by the industry are the cause of this event which could have passed unnoticed[0] It is an unimportant event. [0] http://www.criirad.org/balises/CRIIRAD_1702…

Are you certain you have your scaling factor correct? Your Link and also https://www.bfs.de/DE/themen/ion/umwelt/luft-boden/spurenmes... report ~50micro Becquerel/m3. Not sure how you calculated 10000 as the scaling factor.

The '10,000 times' is a quote from the CRIIRAD PDF: "It detected the fallout from Fukushima which was about 10,000 times higher than those measured in January 2017 on France."

  Il a permis de détecter les retombées de Fukushima qui étaient environ 10000
  fois supérieures à celles  mesurées  en  janvier  2017  sur  la  France.

Re: Detection of radioactive iodine at trace levels in Europe in January 2017

#25

Post by lostlogin »

bitL wrote: post #4

Poland has the highest reading - something going awry at Chernobyl or somebody testing low yield nukes? I am also really disappointed this wasn't anywhere in the news, at least people could have taken some iodine. I understand the level is low but there is still non-zero probability of somebody going ill from it.

Is there a non zero risk from that dose? I don't know how to apply that result to an individual, but it would seem a likely big extrapolation on the linear no threshhold model. When was the shield moved over Chernobyl, could that have stirred things up?

Re: Detection of radioactive iodine at trace levels in Europe in January 2017

#26

Post by Haldir »

en wrote: post #22
Haldir wrote: post #19

Earlier quoted context omitted.

Are you certain you have your scaling factor correct? Your Link and also https://www.bfs.de/DE/themen/ion/umwelt/luft-boden/spurenmes... report ~50micro Becquerel/m3. Not sure how you calculated 10000 as the scaling factor.

9 mBq/m3 mesured for Fukushima (France, Valence). IRSN reports 1.5 µBq/m3 (gaseous + particulate fractions) or 0.31 µBq/m3 (particulate) for this event.

Ah ok, Thanks for the clarification

Re: Detection of radioactive iodine at trace levels in Europe in January 2017

#27

Post by moogly »

sneak wrote: post #21
en wrote: post #5

The releases of January 2017 are 10,000 times lower than those observed (in France) following the Fukushima incident[0] CRIIRAD[1] believes that the meteorological conditions (and air pollution actually in Europe) and (legal) authorizations of iodine-131 releases by the industry are the cause of this event which could have passed unnoticed[0] It is an unimportant event. [0] http://www.criirad.org/balises/CRIIRAD_1702…

Maybe unimportant from a health standpoint. I'm not worried at all for safety but I sure as hell want to know the root cause. It is extremely anomalous.

Same thing happened in 2015.

Re: Detection of radioactive iodine at trace levels in Europe in January 2017

#28

Post by Keyframe »

en wrote: post #5

The releases of January 2017 are 10,000 times lower than those observed (in France) following the Fukushima incident[0] CRIIRAD[1] believes that the meteorological conditions (and air pollution actually in Europe) and (legal) authorizations of iodine-131 releases by the industry are the cause of this event which could have passed unnoticed[0] It is an unimportant event. [0] http://www.criirad.org/balises/CRIIRAD_1702…

Might not be an important event concerning public health. It is extremely important if there was an accident or anything more serious we haven't been notified about.

Re: Detection of radioactive iodine at trace levels in Europe in January 2017

#29

Post by manarth »

lostlogin wrote: post #25
bitL wrote: post #4

Poland has the highest reading - something going awry at Chernobyl or somebody testing low yield nukes? I am also really disappointed this wasn't anywhere in the news, at least people could have taken some iodine. I understand the level is low but there is still non-zero probability of somebody going ill from it.

Is there a non zero risk from that dose? I don't know how to apply that result to an individual, but it would seem a likely big extrapolation on the linear no threshhold model. When was the shield moved over Chernobyl, could that have stirred things up?

    When was the shield moved over Chernobyl?
November 2016, although the side walls won't be up until August this year: https://en.wikipedia.org/wiki/Chernobyl_New_Safe_Confinement

Re: Detection of radioactive iodine at trace levels in Europe in January 2017

#30

Post by fnj »

Mithaldu wrote: post #24
Keyframe wrote: post #3

Can this be related to explosion in French nuclear power plant a week or so ago?

That explosion was in a non-nuclear part of the facility, so even if the timing would match, it couldn't be that.

Of more significance, it occurred in an unfinished reactor; one which had no nuclear materials in it, and is not due to be started until 2018.
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