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RE: High natural background radiation areas
>The text says "Usually is below 0.1 and a square before Sv/h. Normal
>background is in the range of 0.1 microSv/h. Therefore, in the black
>sand the dose rate is 131 microSv/h, good to be signposted as Radiation
Area.
Thanks for the clarification! Following the links back to the "Annual
Terrestrial Radiation Radiation Doses in the World" page
http://www.taishitsu.or.jp/radiation/index-e.html I see the radiation rates
are in Grays. The above measurement "131 microSv/h" comes from "zirconites
and monazites" according to the Brazil page. Can someone tell me what
isotopes, or at least what type of radiation, ie. alpha, beta, gamma, we
are talking about here? Thanks.
Peter Sandgren
Training Division
Connecticut Office of Emergency Management
-----Original Message-----
From: Bjorn Cedervall [SMTP:bcradsafers@hotmail.com]
Sent: Saturday, January 20, 2001 9:55 PM
To: Multiple recipients of list
Subject: Re: High natural background radiation areas
------
Thank you,
There was apparently a character translation problem. As we discussed a
couple of previous times - "micro" should probably always be spelled out in
computer systems to avoid any risk of misinterpretation,
Bjorn Cedervall bcradsafers@hotmail.com
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