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Date: Thu, 18 Apr 1996 11:51:10 -1000 (HST)
From: Richard Pyle <deepreef@bi*.bi*.Ha*.Or*>
To: Peter Den Haan <denhaan@ra*.or*>
Cc: TechDiver <techdiver@terra.net>
Subject: Re: Hold up in court?

> It would take over 8 hours at 1.4 PPO2 in a 24 hour period before 
> pulmonary O2 toxicity is a concern. For each additional 24 hour period of 
> diving Nitrox, that would be reduced by aproximately 20%.
> 
> So again I ask, what damage? ...... Pete

That may be what the books say, but in the real world human physiology
doesn't always follow the numbers.  Like I said before, I haven't 
encountered any symptoms suggestive of pulmonary toxixity (I did 
something like 64 hours at 1.4 over 13 days of diving, which I suspect is 
in the red zone by the book numbers). I HAVE experienced pulmonary 
toxicity in a recompression chamber so I do know what it feels like.
 
However, George says he has experienced symptoms on some of his dives, and I 
have no reason to doubt him. The symptoms may be subtler than what the 
book numbers are based on.  I'm sure G will correct me if I missed the 
point of his original post and he was talking about something else.

Aloha,
Rich

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