How much money does it take to screw in a compact fluorescent lightbulb? About $4.28 for the bulb and labor — unless you break the bulb. Then you, like Brandy Bridges of Ellsworth, Maine, could be looking at a cost of about $2,004.28, which doesn’t include the costs of frayed nerves and risks to health.
...
It’s quite odd that environmentalists have embraced the CFL, which cannot now and will not in the foreseeable future be made without mercury. Given that there are about 4 billion lightbulb sockets in American households, we’re looking at the possibility of creating billions of hazardous waste sites such as the Bridges’ bedroom.
...
As each CFL contains 5 milligrams of mercury, at the Maine “safety” standard of 300 nanograms per cubic meter, it would take 16,667 cubic meters of soil to “safely” contain all the mercury in a single CFL. While CFL vendors and environmentalists tout the energy cost savings of CFLs, they conveniently omit the personal and societal costs of CFL disposal."
http://www.junkscience.com/ByTheJunkman/20070426.html