[SustainableTompkins] Very interesting stats on mercury in bulbs
Thomas Shelley
tjs1 at cornell.edu
Fri May 11 08:20:14 PDT 2007
Dear Friends--From the Green Yes list. Great info for talking points re
CFLs vs standard incandescent bulbs. Tom
>Here is a breakdown on Mercury emmissions vs. Mercury contained within the
>CFL that may be of interest:
>
>Incandescent:
>
>-The production/manufacture of 1 traditional incandescent light bulb emits
>10 mg. of Mercury emissions into the air
>
>-1 traditional incandescent contains 0 mgs of mercury within the bulb itself
>
>
>CFL:
>
>-CFLs produce 6.4 total mgs of combined Mercury (airborne emissions and
>solid mercury inside the CFL)
>
>-The production/manufacture of 1 CFL emits 2.4 mg. of Mercury emissions
>into the air (far less than a traditional light bulb)
>
>-1 CFL contains 4.0 mg of Mercury (mixed with other chemicals) within the
>glass tubing. This is about the size of the head of a ball point pen
>spread across the inside of the bulb.
>
>Airborne mercury is a far greater concern than powder or liquid mercury
>contained in the bulb itself with the caveat that they are recycled
>properly. I have seen dozens of pictures of fluorescents in the landfills
>and it is disturbing.
>
>Joy
>
>Arizona
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