Shining a light on fluorescent bulbs - Environment-...
Rated • 7 reviews • environment • msn.com

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But while 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 up to 6,000 gallons of water beyond safe drinking levels, extrapolated from Stanford University research on mercury. Even the latest lamps promoted as "low-mercury" can contaminate more than 1,000 gallons of water beyond safe levels.

