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Dear all, I wonder whether there is any record of oxygen toxicity
at 40 mts while using nitrox on __no-deco__ dives.

While  nitrox  has  been  used  successfully for over 30 years in
navies  around  the  world,  I,  for one, do not quite follow the
rationale of increasing the concentration of a potentially deadly
gas into the mixture WHILE the oxygen toxicity limit of the diver
is  unknown. This implies that a diver using nitrox moves towards
his  oxtox  value (death) as he dives towards 40-60 mts of depth.
The  diver  can be hit anytime and the oxtox value may be assumed
to  change  from  day to day depending on both internal (physical
condition, repetitive dives, metabolic rates, age, weight, intake
of  chemicals,  stress,  mood,  etc.)  and external (temperature,
light,  visibility,  etc.)  factors  to  the  diver.  Is nitrox a
rational  choice  for no-deco dives within the 0-40 mts range ?

Cheers,

aldo.solari@ho*.se*
www.ccbb.ulpgc.es/fish-ecology/solaris
___


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