Antinuclear

Australian news, and some related international items

When talking about nuclear waste and radioactivity, blurring the figures is a good pro nuclear strategy!


Kazzi Jai
  Fight to stop  nuclear waste dump in  South Australia , 3 Oct 21, · Something which really ticks me off is when percentages are quoted WITHOUT giving the actual figures involved AS WELL!

Case in point – Hef Griffiths is quoted in the latest minutes (August 2021 Kimba City Council) as saying….

Mr Griffiths said that there is a lot of information about ILW remaining radioactive for 10,000 years, however the material that remains from synroc and reprocessing that’s returned from France indicates that after 300 years 99% of the radioactivity will have decayed away. After 600 years, 99.9% will have decayed away.”

Okay – let us assume that the highest upper level of ILW classification is 10^4 TeraBequerels/m3….which is the same as 10^16 Becquerels/m3.

Now it is IAEA and ARPANSA who choose to use Becquerels, so we will stick with those units. Becquerels are the International Unit (SI Unit) for radioactivity activity. It is defined as the number of times each second a nucleus in radioactive material decays and releases radiation. The higher the number of Becquerels, the more radioactive the material is. However, it is a very small unit.
37 billion Becquerels = 1 Curie. It can be written as 3.7 x 10^10 Becquerels or disintergrations per second…… Be mindful that 1 Curie of any radioactivity – alpha, beta or gamma – will fry you.

Okay….so let’s use some easy figures to get my point across.
Let us use hypothetically for example 100 TeraBecquerels as the nuclear waste in question for ease of mathematics. This would technically fall within the category of ILW in Australia, under Australia’s criteria.
It is sitting there, in its shielded cask.

What Hef Griffiths is saying is that in 300 years (approximately 12 generations of future people from us today – or looking back BEFORE European Colonization of Australia – to put it in perspective) that 99% of that waste would have decayed away. I will give him the benefit of the doubt, since AGAIN this information IS NOT REFERENCED, but that means that 1% activity REMAINS! So….that 100 TeraBecquerels of nuclear waste now measures 1 TeraBecquerel!! That is by no means SAFE to handle without shielding EVEN AT THAT STAGE….AND IS NO WHERE NEAR BACKGROUND LEVELS!!

Hopefully that puts this type of PRESENTATION IN CONTEXT!!
Percentages are OFTEN used to HIDE REAL TIME FIGURES!

This is NOT unique to the Nuclear Industry – it is a ploy often used in Politics to HOODWINK people to thinking that the figures ARE NOT IMPORTANT AT ALL – when in fact THEY ARE!!

ALWAYS ASK FOR EXACT FIGURES, WHEN PERCENTAGES ARE QUOTED!!

This was the SAME CASE when it came to the “Community Support” assessment – PERCENTAGES AGAIN ONLY QUOTED!

When they do this – THEY ARE TRYING TO GET AWAY WITH SOMETHING!!  https://www.facebook.com/groups/344452605899556

October 4, 2021 - Posted by | AUSTRALIA - NATIONAL, Federal nuclear waste dump, spinbuster

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