All fluorescent lights contain small amounts of mercury. Some compact fluorescent lamps (CFLs) with magnetic ballasts contain small amounts of short-lived radioactive material. Because of these hazardous materials, you should not toss burned-out lamps into the trash.
Find out if there is a recycling program for them in your community--they are becoming more common, and some retailers will recycle CFLs for free. You can also dispose of the bulbs with other household hazardous wastes such as batteries, solvents, and paints at your community's designated drop-off point or during a designated day when you can put such materials with your curb-side trash pickup. See the EPA recommendations for cleanup and disposal steps.
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