Re: Compact Flourescent Bulbs and Mercury
137th Gebirg said:
The FedGov mandates that air conditioning refrigerants must be environment friendly - enter R-13, R-134, R-134a, etc., which apparently has different boiling and vapor points, is stored under higher pressure and is not only much more dangerous and volatile to handle than the old R-12, but accidentally breathing one whiff of it while engaged in the installation process will in all likelihood kill you quicker than 1000 whippits, between the toxicity factor and air displacement properties.
I just did a bit of light reading to see how these gasses shaped up.
R-12: Banned in the U.S. and other countries in 1994 because of concern about damage to the ozone layer (I'll give my thoughts on this later).
R-13: Will be phased out by 2010 due to ozone damage.
R-134a: While having little ozone depletion potential, it does contribute to global warming, and so will be banned in new cars starting in 2011 in the E.U., and sale of canned R-134a to individuals is restricted in California to avoid botched amateur attempts at recharging air conditioners. Its special hazard is decomposition into toxic gasses at 482ºF.
All three also pose an asphyxiation risk if inhaled in excess, since they are denser than air. R-12 seems to be the most dangerous, followed by 134a and then 13.
Admittedly, this wasn't an in-depth study, and I never was good with chemistry, so I'm not sure if I correctly evaluated the relative hazards of use. Also, I couldn't find anything relevant on the R-12 replacements that aren't being phased out, so those could turn people into zombies for all I know.
Like I said, save the planet, kill the humans.
While admirably pithy and catchy, it isn't nearly that simple. I'm not sure where you live, but I'm in a sunny, costal area. There are only so many friends and family that can develop skin cancer and cataracts (none of them fatal, thank God) before you decide that, if it keeps UV exposure from going up, maybe it's not such a burden to wear a mask and turn on a fan while you're recharging the air conditioner.
Nor, would I argue, is taking the risk of using a lightbulb that, if broken, can pose about as much danger as using an airbrush for a quarter-hour.