“This is an enormous amount of mercury that’s going to enter the waste stream at present with no preparation for it.”
[W]hile the bulbs are extremely energy-efficient, one problem hasn’t gone away: All CFLs contain mercury, a neurotoxin that can cause kidney and brain damage.
The amount is tiny — about 5 milligrams, or barely enough to cover the tip of a pen — but that is enough to contaminate 6,000 gallons of water beyond safe drinking levels, Stanford University environmental safety researchers found. Even the latest lamps promoted as “low-mercury” can contaminate more than 1,000 gallons of water beyond safe levels.
