Oxygen

mkpdavies · 16-12-2006, 03:11 PM

I was thinking about all this co2 hysteria and then thought, if we are supposed to be producing this huge amount of co2, then we must be using up huge amounts of o to get it.

Breathing, burning things and this megascale that is supposed to be altering co2 levels so drastically, must have the opposite effect on o right?

So I have been searching around the web for the same equivelant data on Oxygen levels, as there is for co2 levels.

There is very little out there. Please can someone point me towards some graphs or even better, comparisons. You would think that the effect would be directly proportional to the co2 levels, only going in the opposite direction.

eublues · 16-12-2006, 03:18 PM

There's loads more oxygen in the atmosphere than C02, so presumably what gets combined with carbon would make little difference proportionately.

Air Composition

The sea-level composition of air (in percent by volume at the temperature of 15°C and the pressure of 101325 Pa) is given below.

Name Symbol Percent by Volume
Nitrogen N2 78.084 %

Oxygen O2 20.9476 %

Argon Ar 0.934 %

Carbon Dioxide CO2 0.0314 %

Neon Ne 0.001818 %

Methane CH4 0.0002 %

Helium He 0.000524 %

Krypton Kr 0.000114 %

Hydrogen H2 0.00005 %

Xenon Xe 0.0000087 %

Source:

CRC Handbook of Chemistry and Physics
by David R. Lide, Editor-in-Chief

Besoeker · 16-12-2006, 03:58 PM

Quote:

Originally Posted by eublues

There's loads more oxygen in the atmosphere than C02

Indeed. About 700 times as much by volume.
But I have noted that numerical data seems to be poorly understood.

Aardvark · 16-12-2006, 04:04 PM

1013.25 mBars rather than 101325 Pascals is the normal UK/American version of the International Standard Atmosphere. It is this figure that is used to calibrate pressure altimeters and calculate speeds (TAS) and altitudes at height. Airspeed is a function of height and pressure which is why the speed of sound is set at Mach 1; the actual airspeed varies with height. The air pressure and temperature varies widely over the surface of the planet so much of the inhabited surface is divided up into pressure setting regions both for flight purposes and also for other functions of weather monitoring. If you ever listen to the shipping forecasts you will recognise the names such as Forties, Dogger etc. The Barnsley region is entirely over land so only those who fly will be familiar with it.

The percentages of different gases also vary over the surface of the planet so there is a standardised internationally recognised version of air. This is used, for instance, to define clean air - that is air free from other impurities that might be found under localised conditions. The figures given are accepted as good everywhere, but where there is a lot of pollution or at height where the gases are at different densities because of temperature change (colder than -55 up at the tropopause which is where airliners fly on long journeys for fuel efficiency) the figures are different. When I flew on air-to-air refuelling flights we had a setting which allowed us to breathe 100% oxygen, good for the hangover, but if done for a sustained period could cause quite painful oxygen lung and oxygen ear.

mkpdavies · 16-12-2006, 04:27 PM

So where can I get the PPM quantities of O throughout time. It's important, yet doensn't seem to be out there at all.

I wonder why.

Besoeker · 16-12-2006, 05:19 PM

Quote:

Originally Posted by mkpdavies

So where can I get the PPM quantities of O throughout time. It's important, yet doensn't seem to be out there at all.

I wonder why.

PPM for O2 would be a totally inappropriate measure.

Besoeker · 16-12-2006, 05:29 PM

Quote:

Originally Posted by Aardvark

1013.25 mBars rather than 101325 Pascals is the normal UK/American version of the International Standard Atmosphere. air.

Not quite sure what your point is.
101325 Pa is the same as 1013.25 mB.

mkpdavies · 16-12-2006, 05:31 PM

Quote:

Originally Posted by Besoeker

Quote:

Originally Posted by mkpdavies

So where can I get the PPM quantities of O throughout time. It's important, yet doensn't seem to be out there at all.

I wonder why.

PPM for O2 would be a totally inappropriate measure.

Why?

Besoeker · 16-12-2006, 05:40 PM

Quote:

Originally Posted by mkpdavies

Quote:

Originally Posted by Besoeker

Quote:

Originally Posted by mkpdavies

So where can I get the PPM quantities of O throughout time. It's important, yet doensn't seem to be out there at all.

I wonder why.

PPM for O2 would be a totally inappropriate measure.

Why?

OK
It can be experssed as 21%
Or as 210,000.00 ppm.

Ho hum..........

mkpdavies · 16-12-2006, 05:45 PM

Wow that really makes co2 look like small beer then.

Still, I would like to see how this figure has altered overtime, in direct comparison with co2. So can someone find this obvious bit of research that the voodooists must have done as to get the full picture.

16-12-2006, 03:11 PM	#1 (permalink)
mkpdavies Uber Member Join Date: Sep 2004 Location: Woking Posts: 30,615	Oxygen I was thinking about all this co2 hysteria and then thought, if we are supposed to be producing this huge amount of co2, then we must be using up huge amounts of o to get it. Breathing, burning things and this megascale that is supposed to be altering co2 levels so drastically, must have the opposite effect on o right? So I have been searching around the web for the same equivelant data on Oxygen levels, as there is for co2 levels. There is very little out there. Please can someone point me towards some graphs or even better, comparisons. You would think that the effect would be directly proportional to the co2 levels, only going in the opposite direction. __________________ http://brits4ronpaul.blogspot.com/ http://wokinglibertarians.blogspot.com/ http://lpuk.org My ignore list Labour, Blue Labour, Lib Dems

16-12-2006, 04:27 PM	#5 (permalink)
mkpdavies Uber Member Join Date: Sep 2004 Location: Woking Posts: 30,615	So where can I get the PPM quantities of O throughout time. It's important, yet doensn't seem to be out there at all. I wonder why. __________________ http://brits4ronpaul.blogspot.com/ http://wokinglibertarians.blogspot.com/ http://lpuk.org My ignore list Labour, Blue Labour, Lib Dems

16-12-2006, 05:45 PM	#10 (permalink)
mkpdavies Uber Member Join Date: Sep 2004 Location: Woking Posts: 30,615	Wow that really makes co2 look like small beer then. Still, I would like to see how this figure has altered overtime, in direct comparison with co2. So can someone find this obvious bit of research that the voodooists must have done as to get the full picture. __________________ http://brits4ronpaul.blogspot.com/ http://wokinglibertarians.blogspot.com/ http://lpuk.org My ignore list Labour, Blue Labour, Lib Dems

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16-12-2006, 03:18 PM	#2 (permalink)
eublues Uber Member Join Date: Nov 2004 Posts: 2,925	There's loads more oxygen in the atmosphere than C02, so presumably what gets combined with carbon would make little difference proportionately. Air Composition The sea-level composition of air (in percent by volume at the temperature of 15°C and the pressure of 101325 Pa) is given below. Name Symbol Percent by Volume Nitrogen N2 78.084 % Oxygen O2 20.9476 % Argon Ar 0.934 % Carbon Dioxide CO2 0.0314 % Neon Ne 0.001818 % Methane CH4 0.0002 % Helium He 0.000524 % Krypton Kr 0.000114 % Hydrogen H2 0.00005 % Xenon Xe 0.0000087 % Source: CRC Handbook of Chemistry and Physics by David R. Lide, Editor-in-Chief

16-12-2006, 04:04 PM	#4 (permalink)
Aardvark Moderator Join Date: Dec 2004 Location: Oxonia Posts: 3,120	1013.25 mBars rather than 101325 Pascals is the normal UK/American version of the International Standard Atmosphere. It is this figure that is used to calibrate pressure altimeters and calculate speeds (TAS) and altitudes at height. Airspeed is a function of height and pressure which is why the speed of sound is set at Mach 1; the actual airspeed varies with height. The air pressure and temperature varies widely over the surface of the planet so much of the inhabited surface is divided up into pressure setting regions both for flight purposes and also for other functions of weather monitoring. If you ever listen to the shipping forecasts you will recognise the names such as Forties, Dogger etc. The Barnsley region is entirely over land so only those who fly will be familiar with it. The percentages of different gases also vary over the surface of the planet so there is a standardised internationally recognised version of air. This is used, for instance, to define clean air - that is air free from other impurities that might be found under localised conditions. The figures given are accepted as good everywhere, but where there is a lot of pollution or at height where the gases are at different densities because of temperature change (colder than -55 up at the tropopause which is where airliners fly on long journeys for fuel efficiency) the figures are different. When I flew on air-to-air refuelling flights we had a setting which allowed us to breathe 100% oxygen, good for the hangover, but if done for a sustained period could cause quite painful oxygen lung and oxygen ear.