[Stoves] Stoves Digest, Vol 2, Issue 22

Philip Lloyd plloyd at mweb.co.za
Wed Oct 27 15:04:59 CDT 2010


 A.D.Karve On Wed, Oct 27, 2010 at 4:23 PM wrote:
<it is not hard to believe that our bodies also adapt to chronic exposure to
relatively high levels of CO
Some years ago we measured an average of 1600ppm for 8h in several
households.  It was quite clear that the inhabitants had a higher tolerance
than most others.  They reported slight headaches in the morning - I felt
breathless after a few minutes in that environment.  I have long wanted to
follow up, to find out what changes actually occurred,  I also wanted to
study the impact on infant development of a reduce oxygen flow to the brain
- but never managed to find funding. 

Philip Lloyd
Energy Institute
Cape Peninsula University of Technology
PO Box 652, Cape Town 8000
Tel:021 460 4216
Fax:021 460 3828
Cell: 083 441 5247
 
 

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Subject: Stoves Digest, Vol 2, Issue 22

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Today's Topics:

   1. Re: CO- and Oxygen-affinity to haemoglobine (Anand Karve)
   2. Re: CO- and  Oxygen-affinity to haemoglobine (Bruce Stahlberg)
   3. Re: CO- and  Oxygen-affinity to haemoglobine (frank)


----------------------------------------------------------------------

Message: 1
Date: Wed, 27 Oct 2010 23:28:38 +0800
From: Anand Karve <adkarve at gmail.com>
To: Discussion of biomass cooking stoves
	<stoves at lists.bioenergylists.org>
Subject: Re: [Stoves] CO- and Oxygen-affinity to haemoglobine
Message-ID:
	<AANLkTi=bF-ukTCOKqygt4q2R=4M=nYsFphCYmJwVzF0f at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

Dear Andrew,
our bodies do adapt to atmosphere at high altitude. The usual response is
increase in the haemoglobin content of the blood, so that the blood can
absorb more oxygen from the thin air. Therefore, it is not hard to believe
that our bodies also adapt to chronic exposure to relatively high levels of
CO Yours A.D.Karve On Wed, Oct 27, 2010 at 4:23 PM, Otto Formo
<formo-o at online.no> wrote:

> Dear Andrew,
> May be your urban myth has some sense of thruth, "Climbing" 
> Kilimanjaro some ten years back we noticed that the less trained 
> people had less "problems" facing the thin air of the summit.
> We also have had incidents of trained and Olympic champions having 
> huge problems with hightsickness climbing or even hikeing in high
altitudes.
>
> This does not mean that I recomend people to start smoking.
> But the "fact" that smokers are "used to suffer" from "lack" of oxygen 
> and their bodies has adapt to operate "normaly" during these 
> circumstanses, even at lower altitudes, like sea level in NYC.....:)
>
> Otto
>
> > From: andrew heggie [list at sylva.icuklive.co.uk]
> > Sent: 2010-10-27 09:03:24 MEST
> > To: Discussion of biomass cooking stoves [
> stoves at lists.bioenergylists.org]
> > Subject: Re: [Stoves] CO- and Oxygen-affinity to haemoglobine
> >
> > On Wednesday 27 October 2010 06:37:49 veenu joon wrote:
> > > Dear stovers
> > > Yes our bodies do produce some CO. But there are no visible 
> > > symptoms of CO poisning for this small amount. We lack good 
> > > literature on chronic exposure to small doses of CO on our bodies.  
> > > CO endogenous production results in a blood COHb% levels of 
> > > 0.4-0.9% in a healthy unexposed person (Marks et al., 2002; Widdop,
2002).
> >
> > I wonder what this increases to in a habitual tobbacco smoker?
> >
> > I'm told smokers have less problems acclimatising to high altitude
> because
> > their bodies have adapted to lower blood oxygen from the chronic 
> > affects of CO on their haemoglobin, possibly an urban myth.
> >
> > AJH
> >
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--
***
Dr. A.D. Karve
President, Appropriate Rural Technology Institute (ARTI)

*Please change my email address in your records to: adkarve at gmail.com *
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Message: 2
Date: Tue, 26 Oct 2010 16:07:27 -0500
From: "Bruce Stahlberg" <info at affordableenergysolutions.com>
To: "Discussion of biomass cooking stoves"
	<stoves at lists.bioenergylists.org>
Subject: Re: [Stoves] CO- and  Oxygen-affinity to haemoglobine
Message-ID: <F16C7161656345A9931EEDA3E650824B at BRUCE>
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	reply-type=original

Pardon my ignorance but is it normal to breathe out carbon monoxide out of
our bodies?  Where is the CO coming from? I have never heard that we
naturally create a gas which we normally want to avoid.

I have heard that smokers will breathe out CO but that would explain how it
got there.  Of course in urban settings with lots of car exhaust we could
also potentially have CO in our system but that concept just caught me by
surprise.

A clarification would be helpful.   Thanks.

Bruce

----- Original Message -----
From: "Crispin Pemberton-Pigott" <crispinpigott at gmail.com>
To: "'Discussion of biomass cooking stoves'" 
<stoves at lists.bioenergylists.org>
Sent: Tuesday, October 26, 2010 10:34 AM
Subject: Re: [Stoves] CO- and Oxygen-affinity to haemoglobine


> Hi Ron
>
> By using a calibrated combustion analyser.
>
> We breathe out far more CO than we breathe in. Actually I didn't test my
> combustion efficiency. I will get a CO/CO2 ratio for myself sometime.
>
> Regards
> Crispin
>
>
> -----Original Message-----
>
> Sorry, Crispin, but I'm confused:  how do you know what you're breathing 
> out
> and whether the analyzer is registering CO or something different?
>
> regards,
> ron
> w
> h
>
>
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------------------------------

Message: 3
Date: Wed, 27 Oct 2010 10:04:23 -0700
From: frank <frank at compostlab.com>
To: Discussion of biomass cooking stoves
	<stoves at lists.bioenergylists.org>
Subject: Re: [Stoves] CO- and  Oxygen-affinity to haemoglobine
Message-ID: <4CC85B97.6050207 at compostlab.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Well - we do have an anaerobic intestinal track attached to our mouth. 
Perhaps some CO2 gets reduced to CO and then all we need is a burp. : )
Frank



Bruce Stahlberg wrote:

> Pardon my ignorance but is it normal to breathe out carbon monoxide 
> out of our bodies?  Where is the CO coming from? I have never heard 
> that we naturally create a gas which we normally want to avoid.
>
> I have heard that smokers will breathe out CO but that would explain 
> how it got there.  Of course in urban settings with lots of car 
> exhaust we could also potentially have CO in our system but that 
> concept just caught me by surprise.
>
> A clarification would be helpful.   Thanks.
>
> Bruce
>
> ----- Original Message ----- From: "Crispin Pemberton-Pigott" 
> <crispinpigott at gmail.com>
> To: "'Discussion of biomass cooking stoves'" 
> <stoves at lists.bioenergylists.org>
> Sent: Tuesday, October 26, 2010 10:34 AM
> Subject: Re: [Stoves] CO- and Oxygen-affinity to haemoglobine
>
>
>> Hi Ron
>>
>> By using a calibrated combustion analyser.
>>
>> We breathe out far more CO than we breathe in. Actually I didn't test my
>> combustion efficiency. I will get a CO/CO2 ratio for myself sometime.
>>
>> Regards
>> Crispin
>>
>>
>> -----Original Message-----
>>
>> Sorry, Crispin, but I'm confused:  how do you know what you're 
>> breathing out
>> and whether the analyzer is registering CO or something different?
>>
>> regards,
>> ron
>> w
>> h
>>
>>
>> _______________________________________________
>> Stoves mailing list
>>
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http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists
.org 
>>
>>
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>> http://www.bioenergylists.org/
>> Stoves at lists.bioenergylists.org
>>
http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists
.org 
>
>
>
>
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-- 
Frank Shields
Soil Control Lab
42 Hangar way
Watsonville, CA  95076
(831) 724-5422 tel
(831) 724-3188 fax
frank at compostlab.com
www.compostlab.com





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