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In a previous message, Peter N.R. Heseltine wrote:
> Why would someone of Mr. Gilliam's undoubted experience fail to mention
> that CNS seizures have occurred with brief exposures to pPO2's as low as
> 1.3 ATA (US Navy Divers Handbook - 9/95 edition) and advise sport divers
> (the majority of Undercurrent readers) that they may expose themselves to
> cumulative O2 toxicity that the US Navy/NOAA consider extreme? As the CEO

Come on now, just exactly how many of these tox hits have there been?

I would bet good money that 99.99% of all individuals could do a non-working
dive at 1.58 PP02 for 20 minutes without any problems.

I would not extend that claim to repetetive dives or to working dives.

If someone belives that this is still too much of a risk, then
that person should stay out of the water.

If anyone has numbers that can dispute my claim, then please let me
know.
-- 
Regards,
Andy W. Barclay.        andy@le*.ca*
UNIX Instructor Team Leader / Queensview Branch Manager
(pgp publickey avail at ftp.learnix.ca:/pub/pgp.publickeys.pgp)

Just because everything is different doesn't mean
anything has changed.
   --SOUTHERN CALIFORNIA ORACLE

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