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Re: Feedback - Radioactive iodine leak contaminates hospital workers
Dear Bjorn,
I do believe Su had used the term incident and not accident, as we can read
several times in the article, and by error the press wrote accident, however
this bring an interesting discussion between these two expressions:
incident/accident.
IAEA call the attention about, as we can read in the IAEA/INES glossary:
The word incident is often used, in INES and elsewhere, to describe events
that are, in effect, minor accidents, i.e. that are distinguished from
accidents only in terms of being less severe. This is an arbitrary
distinction with little basis in normal usage. An incident can be minor or
major, just as an accident can, but unlike an accident, an incident can be
caused intentionally. The existing misuses of incident, such as INES, cannot
be eliminated, but new examples should not be created.
And more:
The INES terminology - particularly the use of the term accident - is
different from that used in safety standards, and great care should be taken
to avoid confusion between the two. Unless otherwise indicated, in the rest
of the glossary the term accident is used with its safety standards meaning
(see accident (1)) and the term event is used with its normal English
meaning.
Level 0 (deviation): An event with no safety significance.
Level 1 (anomaly): An event beyond the authorized operating regime, but
not involving significant failures in safety provisions, significant spread
of contamination or overexposure of workers.
Level 2 (incident): An event involving significant failure in safety
provisions, but with sufficient defence in depth remaining to cope with
additional failures, and/or resulting in a dose to a worker exceeding a
statutory dose limit and/or leading to the presence of activity in on-site
areas not expected by design and which require corrective action.
.........................
To complete document
http://www.iaea.or.at/ns/CoordiNet/safetypubs/iaeaglossary/glossarypages/i.h
tm#INES(InternationalNuclearEventScale)
Jose Julio Rozental
joseroze@netvision.net.il
Israel
----- Original Message -----
From: Bjorn Cedervall <bcradsafers@HOTMAIL.COM>
To: <radsafe@list.vanderbilt.edu>
Sent: Saturday, February 01, 2003 2:03 AM
Subject: Re: Feedback - Radioactive iodine leak contaminates hospital
workers
Interesting context for the word "accident".
My personal reflection only,
Bjorn Cedervall bcradsafers@hotmail.com
------------------------------------------
>HEALTH SCARE:
<snip>
Su said that the level of radiation in one of the hospital workers was 0.05
millisieverts, or 20 times less than the acceptable level set by law, while
the levels in the other seven workers were too low to be read.
<snip>
Su said that a preliminarily analysis suggests the accidents do not pose a
major threat either to the medical personnel or to the environment.
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