Data from France shows much higher numbers than measured by BRAWM localy?

Submitted by Anonymous on Wed, 2011-06-15 14:59

I just find it hard to explain why their numbers are that higher than what BRAWM team is getting locally through entire period, especially for the Iodine-131 section.

Here is the latest air sample report from France:
http://balisescriirad.free.fr/Resultats_%20Japon/Resultats_analyses_15_0...

And here is the one date comparison for Iodine-131 just as an example:

BRAWM: 1.3e-08 Bq/L = 0.013 mBq/m3 (correct conversion?)
France: 0.11 to 0.44 mBq/m3

For conversion I used this tool:
http://www.nuc.berkeley.edu/node/2700

Can somebody clarify, please?

Thanks,
Renat

‹ Is Iodine-131 Killing Babies In Philly? (BRAWM: WE Sincerely hope YOU do not stop testing! (Posted by Bill) ›

The highest BRAWM ever

Submitted by Anonymous (not verified) on Fri, 2011-06-17 23:07.

The highest BRAWM ever detected was 4.3e-06 Bq/l on 23 March.
This corresponds to 4.3 mBq/m3, which is around 3 times higher than the levels CRIIRAD detected according to that PDF.

http://www.wolframalpha.com/input/?i=4.3E-6+Becquerels+per+liter+in+mBq%...

bump

Submitted by Anonymous (not verified) on Wed, 2011-06-15 16:16.

bump

I don't understand why

Submitted by Anonymous (not verified) on Wed, 2011-06-15 15:51.

I don't understand why everyone assumes that UCB numbers would be representative of anywhere else?

The wind patterns in the Bay area blow everything inland. I would expect Bay Area numbers to be lower than MANY other areas.

Renat- It is interesting to

Submitted by BC (not verified) on Wed, 2011-06-15 15:23.

Renat-

It is interesting to note that for some of the collections that took place at the same time and place the "cartouche" level for I-131 is about 3 to 8 times higher than the "filtre". (Look at lines 5&6, and then lines 7&8, 9&10, 11&12, 17&18 on page 1 for the I-131) I am guessing the the "cartouche" is a activated carbon filter or something like that and the "filtre" is an air filter silmilar to waht BRAWM is using.

Could some of the I-131 have been gaseous? I think so. Maybe it went right though the standard filters but was captured by the "cartouche" set-up.

Would someone else compare the Cs levels? I have had my fill of thinking about radioactive fallout for the day, and will be concentrating on beer, the beauty of the female form, and burritos for the rest of the PM.

Right, some kind of

Submitted by Renat (not verified) on Wed, 2011-06-15 15:52.

Right, some kind of cartridge vs. "regular" filter.