Measurement of concentration levels of air constituents

Various experiences made by members of the forums concerning in particular small household appliances and energy management.
YO
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Measurement of concentration levels of air constituents




by YO » 13/12/08, 16:04

Hello

Are there devices capable of measuring at once, the concentration rate of the constituents of air (N, O2, CO2, rare gas ....) with the exception of spectrometry and chromatology) ?

I found information on electrochemical sensors and on a company that manufactures portable measuring devices!

http://www.directindustry.fr/prod/alpha ... 38588.html

http://www.cairpol.com/PBCPPlayer.asp?ID=179651

or devices capable of making individual measurements!

http://www.conrad.fr/detecteurs_de_gaz_ ... 9360_19363

But this is not enough and does not allow the air to be characterized and above all the balance of concentrations in delayed or real time.

I hope to make a basic measuring device! (N, O2, CO2, CO, NO, NO2, Hygro, temperature, etc.)

See you soon
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Re: Measurement of the concentration rates of the constituents of a




by Flytox » 13/12/08, 19:13

Hello YO
YO wrote:Are there devices capable of measuring at once, the concentration rate of the constituents of air (N, O2, CO2, rare gas ....) with the exception of spectrometry and chromatology) ?

When I searched on the subject, I only found professional equipment horribly expensive and not transportable or with the "probe" incorporated into the measurement box instead of being at the end of a wire .... :frown: : Cry: : Evil:

However, for all Gillier Pantonists of Econology it would be great to be able to measure continuously and while driving on his modified vehicle the effect of the change of parameters on the main pollutants.

I hope to make a basic measuring device! (N, O2, CO2, CO, NO, NO2, Hygro, temperature, etc.)

yesssssssss, Image That's a good idea. Can you tell us about your specifications?
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by YO » 16/12/08, 11:39

Project aborted due to competition!

There are several methods of measuring gases, including a very simple one.

http://www.expertsdurisque.com/annuaire ... #section12

the colorimetric tubes sold by the company MSA to professionals and I hope to individuals.

http://www.gallet.fr/index.php?id=293&L=5

There are many types of measuring devices for professionals. I deduce from this and my anger rises, that many trained people are perfectly aware of the loss of quality of atmospheric gases and of the pollution induced by many questionable industrial situations.

We are walking!

There are people who really think that specialist domain knowledge grants them life and death rights over others!

I stop my research, I'm fed up!

if anyone knows how to get these famous colorimetric tubes, i am very interested? (request in progress to MSA)
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by YO » 16/12/08, 12:13

Portable particle measurement
http://www.ecomesure.com/Compteur-de-pa ... HTHOUSE,84

Gas and dust measurement
http://www.ecomesure.com/Multianalyseur ... ssieres,51


There's everything you need, except the desire to make an honest assessment!
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by Christophe » 16/12/08, 12:20

Quantitative gas analysis has always (and probably always will) be very delicate and therefore very expensive and requires frequent recalibrations ...

I can't see how you want to design a device yourself.

In terms of quality (with a "perishable" reagent) it is a little different but it remains qualitative precisely ... we know that there is approximately or at least (color code paper style PH) a certain concentration Y of gas X ...
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by YO » 16/12/08, 14:05

I agree with you!

But a little is better than nothing at all! It's an emergency!

There is a need for an independent analysis, even "as qualitative" because we will never progress!

Scientists have all the technical means to characterize pollutants and take stock ... which they do not! Or at least refuse to provide information to the public which would allow everyone (of good will) to make a balance sheet and reflect accordingly.

last example ... air quality measurements using a bike analyzer in Paris ..... we already know the results .... moreover any cyclist in Paris assumes the results ....

We are wandering .... it is useless to seek !!!!
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by Christophe » 16/12/08, 14:38

YO wrote:ddrnier example ... the air quality measurements using an analyzer on a bike in Paris ..... we already know the results .... besides any cyclist in Paris assumes them results....


Ah yeah it would be fun to see these curves but it would probably further reduce the number of cyclists in Paris !!

Are there such results (measurement on bicycle) published somewhere?

Have you looked on the ASPA, AFSET, CITEPA websites?

Here is a fairly complete one: https://www.econologie.com/citepa-invent ... -1661.html
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by Christophe » 16/12/08, 15:02

Here is another, even more interesting one: pollution according to french departments
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by YO » 26/12/08, 22:07

Thank you for these documents.

They partially confirm my impressions!

These are documents that are difficult to unscramble and use units of measurement that speak little and are favorable to a politico-economic discussion minimizing the feelings on the ecological impact ...

Basically we are walking.

The primary interest of these documents is that they describe the main air pollutants and the main sources of rejection ...

The rest of the measures are unusable because they are drowned in calculations probably "enarc" .... The political aspect of air pollution seems to me the main obstacle to the dissemination to the general public of real information.

There are several measuring instruments unfortunately much too expensive for the private individual with the exception of those sold by CAIRPOL (c not from advertising, I only found this company) ...

Even the colorimetric tubes (cheapest method) are not very accessible ... so it will not be easy to take stock.

In Paris we far exceed health standards .... it is clearer that the lack of political will is guilty ...

I continue to study the second document much less draft than the first .... however it is really necessary to have the decoder with ....

I will study the datasheets of the sensors alone .... the problem being that the measurement of gas requires a calibration of the volume of air and hygrometry as well as a predetection of the gases which can pollute or corrupt the initial sensor. .

Not easy but very interesting ....

AIRPARIF will have to hire me because if this continues I will just prove that it fakes the figures .... for me it is not difficult to measure it, being sensitive to intoxicating gas therefore not possible to deceive me !!!!
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by YO » 15/01/09, 01:07

Hello

This thread can be closed. After reading the last document, I came to the confirmation of my print. Measuring air quality is an area that scientists have mastered, only the will is lacking to really provide information on what we breathe daily.
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