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Re: Coolant disposal debate, ad nauseum

To: datsun-roadsters@autox.team.net
Subject: Re: Coolant disposal debate, ad nauseum
From: Thomas - Sweden <csp311@telia.com>
Date: Mon, 09 Jul 2001 23:17:41 +0200
In case of a bad wine-year some manufacturers
use ethylene glycol to make it taste better.
In the mid-80's there were some winery's in
Austria who used too much of it.

Thomas

Alex Avery wrote:

> Uh, it's not pretty nasty to be dumping on your lawn, dude. They use it at
> airports to deice planes--in huge quantities.  Ethylene glycol is harmless
> to plants and soil bacteria.  It's not a persistant pollutant, it is
> readily digested by lots of stuff, so dumping it on your lawn is a way to
> let nature break it down.  The EPA says "Ethylene glycol appears to
> represent a low hazard to the environment" for the above reasons.  It takes
> over 100 grams/milliliter to be toxic to fish.
>
> The reason ethylene glycol is toxic to humans is not because it itself is
> toxic but because of metabolites produced after your body breaks it
> down--Glycoaldehyde, Glycolic Acid, Glyoxylic acid, and Oxalate.  The
> treatment for EG poisoning is ethyl alcohol (hard liquer)--lots of it!  The
> ethyl alcohol competes for the enzymes in your body that digest ethylene
> glycol into the toxic by-products.
>
> For you really die-hard science geeks (like me) here are the details of
> mammalian ethylene glycol toxicity: The metabolites inhibit oxidative
> phosphorylation, sulfhydrl-containing enzymes, and protein synthesis.
> Glycolic acid is the major cause of the metabolic acidosis that is seen in
> ethylene glycol toxicity, although glyoxylic acid also may contribute.
> Toxicity from ethylene glycol is produced from the above metabolites and
> the fact that they cause a severe acidosis, as well as from the fact that
> oxalate precipitates with calcium to produce widespread tissue injury in
> the kidney, brain, liver, blood vessels, and pericardium. Hypocalcemia may
> also result.
>
> Sorry for the length but I really hate misinformation and love scientific
> stuff like this.
> Alex Avery
> Director of Research
> Hudson Institute
> Center for Global Food Issues
> '78 280Z and caretaker of dad's SRL311-7278
>
> At 03:19 PM 7/9/01 -0400, JOHNSOF@aol.com wrote:
> >Uh, it's pretty nasty to be dumping on your lawn...most municipalities
> >suggest pouring it down your toilet, since the waste treatment plant will
> >dilute it down and as you say the bacteria will have a chance to break it
> >down.  I have a septic tank/drain field, so I collect the old antifreeze and
> >once a year take it to the county recycling facility where I can dispose of
> >it there.  I'd like to think that they recycle it, but maybe they dispose of
> >it too.
> >
> >Fred J.
> >Wisc.



--
<><><><><><><><><><><>
 Thomas in Sweden
 Nissan Silvia #319
 Nissan Silvia #293

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