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gimlet · 30-04-2008, 07:20 AM

I was surprised to read this morning thumbing through an old text book (as you do) the following, taken from the book, Inorganic Chemistry printed 1903:

Carbon Dioxide.

Average composition of air may be taken as follows … Carbon Dioxide 0.3360 per 1000 vol.

The proportion of this gas present in the air is also liable to considerable variation, although not through such a wide range as the aqueous vapour. The processeces of respiration, combustion, and putrefaction are attended by the evolution of carbon dioxide, hence the amount of this gas present in closed inhabited places is greater than the open air; in badly ventilated and crowded rooms the proportions sometimes rises to three parts in 1000 vols. Frankland has found that at high elevations the amount of carbon dioxide in the air is often, although not invariably, considerably above the normal.

At Chamounix (3000 feet) the amount of carbon dioxide was 0.63 per 1000 vol
Grands Mulets (11,000 feet) the amount of carbon dioxide was 1.11 per 1000 vol
Mont Blanc (15,732 feet) the amount of carbon dioxide was 0.61 per 1000 vol

So in today’s parts per 1000,000 we have:

Average co2 – 336 PPM, Chamounix 630 PPM, Grands Mulets 1111 PPM and Mont Blanc 610 PPM.

What I find interesting is firstly how high these figures are, and I recall seeing a clip some time ago, showing the measuring of CO2 levels on the top of a mountain and the point being made that on the top of a mountain, where there should be clean unpolluted air there now exists devastating high levels of CO2.
According to the book, there are higher CO2 levels during the night, in foggy weather and high CO2 on mountains because of lack of vegetation.

30-04-2008, 07:20 AM	#1 (permalink)
gimlet Senior Member Join Date: Oct 2004 Location: Shropshire Posts: 798	CO2 from 1903 book I was surprised to read this morning thumbing through an old text book (as you do) the following, taken from the book, Inorganic Chemistry printed 1903: Carbon Dioxide. Average composition of air may be taken as follows … Carbon Dioxide 0.3360 per 1000 vol. The proportion of this gas present in the air is also liable to considerable variation, although not through such a wide range as the aqueous vapour. The processeces of respiration, combustion, and putrefaction are attended by the evolution of carbon dioxide, hence the amount of this gas present in closed inhabited places is greater than the open air; in badly ventilated and crowded rooms the proportions sometimes rises to three parts in 1000 vols. Frankland has found that at high elevations the amount of carbon dioxide in the air is often, although not invariably, considerably above the normal. At Chamounix (3000 feet) the amount of carbon dioxide was 0.63 per 1000 vol Grands Mulets (11,000 feet) the amount of carbon dioxide was 1.11 per 1000 vol Mont Blanc (15,732 feet) the amount of carbon dioxide was 0.61 per 1000 vol So in today’s parts per 1000,000 we have: Average co2 – 336 PPM, Chamounix 630 PPM, Grands Mulets 1111 PPM and Mont Blanc 610 PPM. What I find interesting is firstly how high these figures are, and I recall seeing a clip some time ago, showing the measuring of CO2 levels on the top of a mountain and the point being made that on the top of a mountain, where there should be clean unpolluted air there now exists devastating high levels of CO2. According to the book, there are higher CO2 levels during the night, in foggy weather and high CO2 on mountains because of lack of vegetation.