How to Dispose of Compact Fluorescent Lights

Compact fluorescent lights (CFLs) are becoming more and more popular as a way to save energy costs. The average CFL lasts approximately 10,000 hours and uses one quarter of the electricity needed to power a standard light bulb. These bulbs seem to be the perfect "green" solution to save electricity.

The only downfall of compact fluorescent bulbs is that they contain mercury, a toxic substance that requires careful disposal. To keep the amount in perspective, however, consider that an average CFL bulb contains 5 milligrams of mercury, barely enough to coat the tip of a pin, compared to the 500 milligrams contained in a traditional thermometer. The mercury in a compact fluorescent bulb is enclosed and poses no threat as long as the bulb is intact. However, when a bulb is broken, the mercury is released and must be handled carefully. There are two ways in which the mercury can be released: accidental breakage of the bulb or disposal of a spent bulb.

Accidental Breakage of a CFL Bulb

If you accidentally drop a compact fluorescent bulb, immediately clear the room of people and pets. Open the nearest window immediately and shut off any air circulation, like air conditioning or central heat. Leave the room for a minimum of a half hour, closing doors behind you. After the room has ventilated, scoop up the glass fragments gently with a piece of cardboard and place in a lidded glass jar. Do not use a vacuum or broom as this will disperse the mercury into the air.

Any clothing or bedding that has come into direct contact with the broken glass (and thereby the mercury vapors) should be discarded and not washed as they could contaminate the washing machine. Tiny pieces of glass too small to be scooped up can be captured with masking or duct tape. Seal the jar and dispose of in your regular trash can outdoors unless your municipality has available facilities or rules regarding the disposal of mercury. When all of the glass has been removed, wash the floor or carpet thoroughly.

Disposal of a Burnt Out Compact Fluorescent Bulb