Re: [115attendees] My CO2 complete measurement sets so far

[Ole Jacobsen <[e-mail]>]

Interesting data!

Would not the HUMIDITY play a major factor given that virus cells are
carried in aerosol droplets? Do we even know how long they survive
"in the wild" in a typical room at X temperature and Y relative humidity?
Air cabins are typically very dry.

I remember there was a great deal of concern about surface transmission in 
the early days of COVID-19, but that seems to have almost disappeared.

Ole

> On Nov 15, 2022, at 05:54, Wes Hardaker <[e-mail]> wrote:
> 
> "Eric Vyncke (evyncke)" <[e-mail]> writes:
> 
>> For the high rise of CO2 during take-off and landing,
> [...]
> 
> Interesting, I hadn't heard that theory.  Makes sense though.
> 
>> At cruise altitude, the air pressure is kept at the equivalent of 8000
>> ft [1], reducing the number of air molecules but not the amount of CO2
>> as it only depends on human 'exhaust', so unsure how to read the
>> number ;-)
> 
> Yes, it took me a bit to find how to interpret it.  And there are
> different reports about cabin pressures too (some say 6000), which
> likely means it's a per-flight/plane setting.  I note in the top of the
> post that if it's 8000ft, the readings could be 24% lower than what they
> really are (which just makes them that much more scary).
> -- 
> Wes Hardaker
> USC/ISI
> 
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Ole J. Jacobsen
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