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Date: Sun, 18 Feb 1996 23:28:01 -0500
To: techdiver@terra.net
From: abrill@ro*.ge*.du*.ed* (Andrew L. Brill)
Subject: Re: Commercial diver bone damage study
Hey all,
Not that I pretend to know much about this, but, having grown up in
Portland, ME and in RI, I know lots of guys who dive for shellfish
commercially.  In RI, they tend to be quahog fishermen, and in my
experience, they tend to pretty much know what they're doing.  The two
bozo's in maine I know who dive urchins scare me - I once asked one how
much bottom time he logs on a typical day, and he said: "I dunno, three or
four or five tanks worth... I usually go up when I run out, cause I'm too
busy to look at my guage.  Besides, we're diving shallow, less than 60'."
Yikes!  No tables (BOTH these guys couldn't calculate their way out of a
paper bag), no timer, no worries.  Scarier still, one of them had never
even HEARD of DAN!!! What I wonder is, a)  who certified these guys; and b)
why haven't they learned to use tables or bought an idiot box with their
great earnings??
I bet that Necrosis will be high with them, and even if they ARE using
tables, it is thought that the Navy Tables and others have NDL's WAY too
liberal at the shallow depths, i.e., "less than 50'" (see Lipmann).  Years
of this WILL fuck you up, I'd bet a full set of Performance dive gear on
it!
My .02
Andrew

IANTD 6791              NOAA Working Diver/Drysuit                PADI DMC

____"Fool! I am the Fates' lieutenant; I act under orders!" - Ahab___
Andrew L. Brill                            *abrill@ro*.ge*.du*.ed*
Duke University Department of Geology      *       FAX (919) 681-8228
Prog. for the Study of Developed Shorelines*
Durham, NC 27708-0228                      *


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