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1 (February 13, 2008)

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                                                                  Order Code RS22807
                                                                     February 13, 2008





         CRS Report for Congress



    Compact Fluorescent Light Bulbs (CFLs):
              Issues with Use and Disposal

                               Linda Luther
                     Analyst in Environmental Policy
                Resources, Science, and Industry Division

Summary


     Compact fluorescent light bulbs (CFLs), a smaller version of fluorescent tubes, are
 produced with technology that allows them to fit into standard lighting products such
 as lamps and ceiling fixtures. The bulbs use one-fifth to one-quarter the energy and can
 provide roughly 10 times the hours of illumination of traditional incandescent light
 bulbs. These factors have led to a significant increase in the sales of CFLs. According
 to the U.S. Environmental Protection Agency (EPA), CFL sales doubled in 2007 and
 now represent 20% of the U.S. light bulb market. Sales may be expected to increase with
 the implementation of new energy efficiency standards for lighting specified in the
 Energy Independence and Security Act of 2007 (P.L. 110-140, enacted December 19,
 2007). Those standards require certain light bulbs to use 25% to 30% less energy than
 today's products beginning in 2012. CFLs already meet the standards.

     The increased use of CFLs has led to concern among some groups over the
 presence in the bulbs of mercury, a potent neurotoxin. By way of example, EPA has
 likened the amount of mercury in individual bulbs to that which could fit on the tip of
 a ballpoint pen ranging from 2 to 6 milligrams (mg). At these levels, mercury is
 virtually harmless to consumers. Still, EPA recommends that caution be taken in
 cleaning up broken CFLs to minimize potential mercury exposure. EPA also
 recommends that spent bulbs be recycled, instead of disposed of with household
 garbage, in areas where CFL recycling is available. (Federal regulations that apply to the
 disposal of mercury-containing products (e.g., lighting, switches, thermometers) do not
 apply to households.) Further, EPA has noted that increased CFL use may actually
 reduce overall mercury emissions to the environment by potentially reducing power use
 coal-fired power plants are the greatest individual source of mercury emissions in
 the United States.

     This report discusses reasons why CFL sales have increased dramatically in the past
 two years, concerns that have arisen regarding their use and disposal, and some media
 reports that have exaggerated the potential danger associated with the mercury in CFLs.





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