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"It was much used in frogmen's rebreathers."
This needs to be fixed with whatever the proper meaning is - commonly used? often used? once used? TheHYPO 18:04, 27 August 2007 (UTC)
"Breathing gas" seems to be a pretty generic concept - why is this article all about the term in the context of scuba diving? —Preceding unsigned comment added by 209.195.74.65 ( talk) 21:36, 27 April 2009 (UTC)
Two of the three listed "essential features" of a safe breathing gas seem to be contradictory. The first implies that oxygen must be included ("it must contain sufficient oxygen...") but the third seems to imply that oxygen shouldn't be included ("it must not become toxic … high pressure ... Oxygen and nitrogen ... become toxic under pressure).
CO_2 is described as a toxin in the article & I feel that's somewhat oversimplified or inaccurate (take your pick), considering the bohr effect http://en.wikipedia.org/wiki/Bohr_effect on hemoglobin. . . I do believe that including CO_2 is avoided in most breathing gasses, it's inaccurate to say CO_2 is toxic. (One could argue that too much CO2 is indeed toxic, but the same can be said about Oxygen, Nitrogen, and even water, so that argument would be hypocritical. =) ) 65.26.29.42 ( talk) 14:05, 26 December 2009 (UTC)
Perhaps some insight into the specific actions of various breathing gases on the brain could be gained by examining the neurons of deep sea creatures and transient (air breathing) deep sea visitors.
What lipids are they using for their cell membranes? Are there special chemicals (like myelin in humans) that are used to assist transmission? How does the density of neuroreceptors in a synapse change with similar species living at different depths?
Might make for some interesting projects for oceanography students... 24.8.102.25 ( talk) 04:44, 5 April 2011 (UTC)
With reference to my revert: There is a description of the debate around the effect of helium on the human voice at Talk:Helium#Correction to Biological Effects where the consensus seems to be that helium does not alter the pitch of the voice, only its timbre. The gist of the argument is that the vocal chords will vibrate at approximately the same frequency, so the fundamental note is unaffected, although the pitch of the resonances will change in helium, which produces a shift in the relative overtones (i.e. the timbre). I suppose you could ask whether playing middle 'C' on a piano in a helium-rich atmosphere would produce a note other than middle 'C'? In my humble opinion, it wouldn't. -- RexxS ( talk) 17:24, 19 September 2011 (UTC)
The edit "though more properly, carbon dioxide is an asphyxiant gas. It is relatively inert. High concentrations in breathing air--by displacing oxygen--can cause dizziness and even death through suffication." is disputed, and has been reverted
[1]. See
hypocapnia
Hypercapnia. Any gas mixture is asphyxiant if it does not contain sufficient oxygen, not all of these are toxic. The asphyxiant qualities of carbon dioxide are unimportant in this context as the toxic effects manifest at order of magnitude lower concentrations.
Peter (Southwood)
(talk): 10:23, 17 May 2012 (UTC)
High concentration of carbon di-oxide, as seen in Cold drinks and Soda water, is quite heavily pungent, cause burning sensation. So it might have toxic effect in higher concentrations 2405:204:4421:E901:25D0:2F5D:179A:B58B ( talk) 09:04, 6 July 2018 (UTC) A relevant content: https://chemistry.stackexchange.com/questions/62342/what-constituents-in-soft-drinks-are-the-cause-their-strong-pungent-smell 2405:204:4421:E901:25D0:2F5D:179A:B58B ( talk) 09:05, 6 July 2018 (UTC)
B |
There are a few uncited items, but not controversial. The article focuses on breathing gases for diving, which are covered in reasonable detail, Other applications are mentioned in the lead, Article structure and layout looks logical and amenable to expansion to cover missing matter. Prose is adequate and clear. Some sentences could be consolidated into larger paragraphs, but good enough as it is. Looks OK to me. |
Not there yet, mainly due to lack of breadth of content. • • • Peter (Southwood) (talk): 16:43, 26 September 2016 (UTC)
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"Helium is not very suitable for dry suit inflation owing to its poor thermal insulation properties – helium is a very good conductor of heat (compared to air which is a rather poor, making it more of an insulator).[1][3]"
Helium can't be "a very good conductor of heat" and an insulator at the same time. One could insert the word "not" to fix this, but I don't know enough about the topic to want to do this. Would someone knowledgeable make the needed revision. Janice Vian, Ph.D. ( talk) 06:05, 18 February 2017 (UTC)
Material | Conductivity |
---|---|
Argon | 16 |
Air | 24 |
Helium | 142 |
Water | 580 |
Copper | 401,000 |
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Kindly mention their answers in the Wikipedia article, along with more detailed information about practical emergency/ critical medical care and toxicology care.
Kindly mention more details about medical usage in drowning treatment, asthma treatment, heart and cardiovascular treatment, trauma care and all other usage; preferably in table format; such as following columns:
1. Breathing Mixture name/ id (if any) 2. Oxygen Percentage 3. Other Gas percentage. 4. Usage 5.Other specific condition (Pressure/ speed/ temperature etc if any) for usage 6.Anything else.
Thanks in advance
2405:204:4421:E901:25D0:2F5D:179A:B58B ( talk) 09:24, 6 July 2018 (UTC)
Nitrogen Gas is narcotic? How? what is the mechanism of this narcosis? 2405:204:4421:E901:25D0:2F5D:179A:B58B ( talk) 10:08, 6 July 2018 (UTC)
There is a whole article Nitrogen narcosis dedicated to this effect. It only occurs at partial pressures significantly higher than at normal atmospheric pressure. Cheers, · · · Peter (Southwood) (talk): 15:10, 6 July 2018 (UTC)
This article is rated B-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||||||||||||||||||||||||||||||
|
"It was much used in frogmen's rebreathers."
This needs to be fixed with whatever the proper meaning is - commonly used? often used? once used? TheHYPO 18:04, 27 August 2007 (UTC)
"Breathing gas" seems to be a pretty generic concept - why is this article all about the term in the context of scuba diving? —Preceding unsigned comment added by 209.195.74.65 ( talk) 21:36, 27 April 2009 (UTC)
Two of the three listed "essential features" of a safe breathing gas seem to be contradictory. The first implies that oxygen must be included ("it must contain sufficient oxygen...") but the third seems to imply that oxygen shouldn't be included ("it must not become toxic … high pressure ... Oxygen and nitrogen ... become toxic under pressure).
CO_2 is described as a toxin in the article & I feel that's somewhat oversimplified or inaccurate (take your pick), considering the bohr effect http://en.wikipedia.org/wiki/Bohr_effect on hemoglobin. . . I do believe that including CO_2 is avoided in most breathing gasses, it's inaccurate to say CO_2 is toxic. (One could argue that too much CO2 is indeed toxic, but the same can be said about Oxygen, Nitrogen, and even water, so that argument would be hypocritical. =) ) 65.26.29.42 ( talk) 14:05, 26 December 2009 (UTC)
Perhaps some insight into the specific actions of various breathing gases on the brain could be gained by examining the neurons of deep sea creatures and transient (air breathing) deep sea visitors.
What lipids are they using for their cell membranes? Are there special chemicals (like myelin in humans) that are used to assist transmission? How does the density of neuroreceptors in a synapse change with similar species living at different depths?
Might make for some interesting projects for oceanography students... 24.8.102.25 ( talk) 04:44, 5 April 2011 (UTC)
With reference to my revert: There is a description of the debate around the effect of helium on the human voice at Talk:Helium#Correction to Biological Effects where the consensus seems to be that helium does not alter the pitch of the voice, only its timbre. The gist of the argument is that the vocal chords will vibrate at approximately the same frequency, so the fundamental note is unaffected, although the pitch of the resonances will change in helium, which produces a shift in the relative overtones (i.e. the timbre). I suppose you could ask whether playing middle 'C' on a piano in a helium-rich atmosphere would produce a note other than middle 'C'? In my humble opinion, it wouldn't. -- RexxS ( talk) 17:24, 19 September 2011 (UTC)
The edit "though more properly, carbon dioxide is an asphyxiant gas. It is relatively inert. High concentrations in breathing air--by displacing oxygen--can cause dizziness and even death through suffication." is disputed, and has been reverted
[1]. See
hypocapnia
Hypercapnia. Any gas mixture is asphyxiant if it does not contain sufficient oxygen, not all of these are toxic. The asphyxiant qualities of carbon dioxide are unimportant in this context as the toxic effects manifest at order of magnitude lower concentrations.
Peter (Southwood)
(talk): 10:23, 17 May 2012 (UTC)
High concentration of carbon di-oxide, as seen in Cold drinks and Soda water, is quite heavily pungent, cause burning sensation. So it might have toxic effect in higher concentrations 2405:204:4421:E901:25D0:2F5D:179A:B58B ( talk) 09:04, 6 July 2018 (UTC) A relevant content: https://chemistry.stackexchange.com/questions/62342/what-constituents-in-soft-drinks-are-the-cause-their-strong-pungent-smell 2405:204:4421:E901:25D0:2F5D:179A:B58B ( talk) 09:05, 6 July 2018 (UTC)
B |
There are a few uncited items, but not controversial. The article focuses on breathing gases for diving, which are covered in reasonable detail, Other applications are mentioned in the lead, Article structure and layout looks logical and amenable to expansion to cover missing matter. Prose is adequate and clear. Some sentences could be consolidated into larger paragraphs, but good enough as it is. Looks OK to me. |
Not there yet, mainly due to lack of breadth of content. • • • Peter (Southwood) (talk): 16:43, 26 September 2016 (UTC)
Hello fellow Wikipedians,
I have just modified one external link on Breathing gas. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
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An editor has reviewed this edit and fixed any errors that were found.
Cheers.— InternetArchiveBot ( Report bug) 19:02, 7 November 2016 (UTC)
"Helium is not very suitable for dry suit inflation owing to its poor thermal insulation properties – helium is a very good conductor of heat (compared to air which is a rather poor, making it more of an insulator).[1][3]"
Helium can't be "a very good conductor of heat" and an insulator at the same time. One could insert the word "not" to fix this, but I don't know enough about the topic to want to do this. Would someone knowledgeable make the needed revision. Janice Vian, Ph.D. ( talk) 06:05, 18 February 2017 (UTC)
Material | Conductivity |
---|---|
Argon | 16 |
Air | 24 |
Helium | 142 |
Water | 580 |
Copper | 401,000 |
Hello fellow Wikipedians,
I have just modified one external link on Breathing gas. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
{{
dead link}}
tag to
http://www.altitude.org/oxgyen_levels.phpWhen you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
This message was posted before February 2018.
After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than
regular verification using the archive tool instructions below. Editors
have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
RfC before doing mass systematic removals. This message is updated dynamically through the template {{
source check}}
(last update: 18 January 2022).
Cheers.— InternetArchiveBot ( Report bug) 01:51, 25 July 2017 (UTC)
Kindly mention their answers in the Wikipedia article, along with more detailed information about practical emergency/ critical medical care and toxicology care.
Kindly mention more details about medical usage in drowning treatment, asthma treatment, heart and cardiovascular treatment, trauma care and all other usage; preferably in table format; such as following columns:
1. Breathing Mixture name/ id (if any) 2. Oxygen Percentage 3. Other Gas percentage. 4. Usage 5.Other specific condition (Pressure/ speed/ temperature etc if any) for usage 6.Anything else.
Thanks in advance
2405:204:4421:E901:25D0:2F5D:179A:B58B ( talk) 09:24, 6 July 2018 (UTC)
Nitrogen Gas is narcotic? How? what is the mechanism of this narcosis? 2405:204:4421:E901:25D0:2F5D:179A:B58B ( talk) 10:08, 6 July 2018 (UTC)
There is a whole article Nitrogen narcosis dedicated to this effect. It only occurs at partial pressures significantly higher than at normal atmospheric pressure. Cheers, · · · Peter (Southwood) (talk): 15:10, 6 July 2018 (UTC)