Can anybody come up with a chart showing CO2 atmospheric
concentrations
as a function of altitude?

CO2 is 150% of the density of air so it should sink to the
ground.

http://en.wikipedia.org/wiki/Carbon_dioxide
"At standard temperature and pressure, the density of
carbon
dioxide is around 1.98 kg/m³, about 1.5 times that of
air."

If you have a open top container of CO2 it will remain in
the
container until it is poured out like you would pour
water.

Paul Lamar

Paul,
There is essentially no difference in the concentration of
CO2 with
altitude. The difference in density is overwhelmed by the
convection
currents (thunderstorms and wind). Yes, a container of co2
will sit (for a
while) in a quiescent situation, but molecular diffusion
will gradually
cause the gas to mix with the surrounding air.


Bill Schertz
KIS Cruiser #4045
N343BS
Phase I testing

Has anybody measured this? Are there any references ?


Paul Lamar

If the denser CO2 gas molecules did not mix as Bill S. indicated
and actually concentrated and settled at the bottom of the atmosphere
(ground level) then every living creature that breathes O2 in low
level areas such as the Coachella Valley and Indio, CA which are
below sea level, would be dead from lack of oxygen to breath.

Joel

Indio is 13 feet above sea level.

It depends on where this 350 to 450 PP million
was measured. Maybe some parts of the earth the concentration is lower.
As far as I can tell they only measured these numbers in one or two places.
What is it in the middle of the Pacific Ocean at sea level?

Surely there must be some sort of concentration gradient.
What is the concentration of CO2 say in Death Valley as
opposed to the top of Mount Whitney?

I lived in a narrow Canyon near LA that had bumper to bumper
idling cars and no wind at rush 3 hours for many years.
Why am I still alive? I will say the vegetation grew very fast.

What instrument is used to measure the CO2 concentration?

Paul Lamar

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