World Library  
Flag as Inappropriate
Email this Article

Hydrogen narcosis

Article Id: WHEBN0021767172
Reproduction Date:

Title: Hydrogen narcosis  
Author: World Heritage Encyclopedia
Language: English
Subject: Nitrogen narcosis, Breathing gases, Hydreliox, Normocapnia, Diving Diseases Research Centre
Publisher: World Heritage Encyclopedia

Hydrogen narcosis

Hydrogen narcosis (also known as the hydrogen effect) is the psychotropic state induced by breathing hydrogen at high pressures. Hydrogen narcosis produces symptoms such as hallucinations, disorientation, and confusion, which are similar to hallucinogenic drugs. It can be experienced by deep-sea divers who dive to 300 metres (1,000 ft) below sea level breathing hydrogen mixtures.[1] However, hydrogen has far less narcotic effect than nitrogen (which causes the better known nitrogen narcosis) and is very rarely used in diving. In tests of the effect of hydrogen narcosis, where divers dove to 500 metres (1,600 ft) with a hydrogen–helium–oxygen (Hydreliox) mixture containing 49% hydrogen, it was found that while the narcotic effect of hydrogen was detectable, the neurological symptoms of high-pressure nervous syndrome were only moderate.[2][3]

See also


  1. ^ Taylor, Larry "Harris". "Diving With Gas Mixes Other Than Air". Retrieved 2009-03-02. 
  2. ^ Abraini, JH; Gardette-Chauffour, MC; Martinez, E; Rostain, JC; Lemaire, C (1994). "Psychophysiological reactions in humans during an open sea dive to 500 m with a hydrogen-helium-oxygen mixture". Journal of Applied Physiology (American Physiological Society) 76 (3): 1113–8.  
  3. ^ Rostain, JC; Gardette-Chauffour, MC; Lemaire, C; Naquet, R (1988). "Effects of a H2-He-O2 mixture on the HPNS up to 450 msw.". Undersea Biomedical Research 15 (4): 257–70.  
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.