Additional toxic material reduction - reduced mercury in light bulbs | U.S. Green Building Council
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LEED O+M: Existing Buildings | v2 - LEED 2.0

Additional toxic material reduction - reduced mercury in light bulbs

MRc6 | Possible 1 point


Establish and maintain a toxic material source reduction program to reduce the amount of mercury brought into buildings through purchases of light bulbs.


  • Maintain mercury content of all mercury-containing light bulbs below 80 picograms per lumen hour of light output (picogram/lumen hour), on weighted average, for all mercury-containing light bulbs acquired for the existing building and associated grounds. (The weighted average mercury content of these light bulbs is calculated as described in MR Prerequisite 2).
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