CO2 dangers? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 11-21-2014, 05:01 PM Thread Starter
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CO2 dangers?

We frequently hear from newer CO2 users about concerns about the gas we use. Part of that concern is over breathing the CO2 and what it might do to us. If we go into a closed room and try we might be able to choke ourself on CO2. That is true but it really should not be a top concern.
CO2 is not really a dangerous gas to breathe as evidenced by the following I snipped from a local Craigslist ad. Some of you may have heard or read about Austin and local music shows.
Austin City Limits (ACL?) and SSW?
There is not a lot of worry about folks breathing CO2!
This is an ad for the equipment to do the fog.

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post #2 of 8 (permalink) Old 11-21-2014, 05:08 PM
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Any gas is dangerous in high concentrations. People don't live at the ACL. At your house it couldn't hurt to open your window once in a while to get some fresh air in.

I measured CO2 levels in by my 75G. It was around 1700ppm. Normal outside air concentration is 400-700ppm.
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post #3 of 8 (permalink) Old 11-21-2014, 05:11 PM
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Concentrations in excess of 30,000 ppm get dangerous after a few minutes of exposure.


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post #4 of 8 (permalink) Old 11-21-2014, 05:20 PM
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I think you get dizzy around 4000ppm.
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post #5 of 8 (permalink) Old 11-21-2014, 05:59 PM Thread Starter
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You've all got the point right. It takes a whole lot to really be dangerous!
On the other hand, maybe that's why the bands all sound the way they do and some football teams play so bad after running out through the fog???
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post #6 of 8 (permalink) Old 11-21-2014, 06:34 PM
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I think the most dangerous situation is probably a worn paintball adapter. Imagine what would happen if you stripped out the threads and the tank took off. Yikes
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post #7 of 8 (permalink) Old 11-21-2014, 07:25 PM
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Quote:
Originally Posted by oldpunk78 View Post
I think the most dangerous situation is probably a worn paintball adapter. Imagine what would happen if you stripped out the threads and the tank took off. Yikes
Mine sets between two tanks so I don't want to imagine.

The wheel turns.
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post #8 of 8 (permalink) Old 11-21-2014, 07:48 PM
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CO2 tanks aren't generally dangerous to humans, because it ends up being a repellent, or just not enough gas in our tanks to create a big enough threat.

A sudden influx of high CO2 levels irritates the nose, throat and lungs, causing a strong coughing reflex. Ever accidentally breathe in through your nose while drinking from a glass of freshly poured soda and had a strong cough reflex? That's your body rejecting inhaling CO2. This protects you from inhaling CO2 in small, highly concentrated areas.

Slow creep-ups in CO2 level tend to cause noticeable illness (ie respiratory distress, dizzyness) and other symptoms that drive you out of the area.

The big hazards are where a large area suddenly gets filled with high levels of CO2, and you can't readily back away to get a breath of fresh air. But it takes lot of CO2 to do something like flood an entire basement with 10% CO2.


http://www.blm.gov/style/medialib/bl...dat/25apxC.pdf
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