CFLs are made of glass tubing containing about 4 milligrams of mercury. Although this isn’t much—classic thermometers contain 500 milligrams of mercury—consumers should still take precautions if a CFL breaks, since mercury vapors may pose health risks. The U.S. Environmental Protection Agency (EPA) recently updated the guidelines for cleaning a broken CFL. The revised guidelines break the process into three steps: what to do before cleanup, during cleanup, and after cleanup. More in-depth guidelines are available at www.epa.gov/cflcleanup.
Before Cleanup
- Have people and pets leave the room.
- Air out the room for 5-10 minutes by opening a window or door to the outdoor environment.
- Shut off the central forced air heating/air-conditioning system, if you have one.
- Collect materials needed to clean up broken bulb: stiff paper or cardboard, sticky tape, damp paper towels or disposable wet wipes (for hard surfaces) and a glass jar with a metal lid or a sealable plastic bag.
- DO NOT VACUUM. Vacuuming is not recommended unless broken glass remains after all other cleanup steps have been taken. Vacuuming could spread mercury-containing powder or mercury vapor.
- Be thorough in collecting broken glass and visible powder.
- Place cleanup materials in a sealable container.
- Promptly place all bulb debris and cleanup materials, including vacuum cleaner bags, outdoors in a trash container or protected area until materials can be disposed of. Avoid leaving any bulb fragments or cleanup materials indoors.
- If practical, continue to air out the room where the bulb was broken and leave the heating/air conditioning system shut off for several hours.
- Local disposal locations include the Central Peninsula Landfill in Soldotna, the Homer Bailing Landfill Facility and at Home Depot in Kenai.
If a consumer has a particular concern they can contact EPA or their local/state environmental agency for assistance. The updated guidelines feature a brochure on proper handling of CFLs, cleanup procedures, and recycling tips. The brochure may be downloaded at www.epa.gov/cflcleanup.