EPA has updated its guidance on how to properly clean up a broken compact fluorescent lamp (CFL) and also developed a new consumer brochure with CFL recycling and cleanup tips. CFLs contain a small amount of mercury sealed within the glass tubing. When a CFL breaks, some of the mercury is released as vapor and may pose potential health risks. The guidance and brochure provide simple, user-friendly directions to help prevent and reduce exposure to mercury pollution.
See http://www.epa.gov/cflcleanup.
Find more information on CFLs at http://www.epa.gov/cfl. Note that regulated entities are required to manage spent florescent lamps as universal or hazardous waste.
EPA Region 2 has developed a guide on managing spent florescent lamps.