[GRRN] Mercury & Old Computers Question

From: Stephanie C. Davis (ScD18@WasteReductionRemedies.com)
Date: Mon Oct 02 2000 - 18:10:49 EDT

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    The below message is forwarded from a colleague not on the listserv.
    Forward as appropriate and apologies for any duplications/multiple listserv
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    PLEASE RESPOND DIRECTLY TO: laura@orcouncil.org
    AND CC: ScD18@WasteReductionRemedies.com
    AND CC: the listserv, if appropriate.
    THANKS

    > Here is what I'm trying to figure out:
    >
    > How much mercury is going into the waste stream in Oregon from the disposal
    > of old computers?
    >
    > For other mercury-containing products such as thermometers and thermostats,
    > we have estimates from EPA on the amount of mercury generated nationally
    > each year via the disposal of these products. Based on these numbers, we
    > have developed rough estimates of Oregon's contribution to the waste stream
    > based on percentage of national population.
    >
    > For computers, here is all we've been able to come up with:
    >
    > * A recent study by the National Safety Council (1999) estimates that 315
    > million computers will become obsolete by 2004. The average desktop
    > computer weighs approximately 60 lbs; 0.0022% is Hg (Electronics Industry
    > Roadmap, 1996). Based on these figures, one would expect 416,000 lbs of
    > mercury nationwide to be generated from the disposal of these computers
    > [(315E6 * 60 lbs.) 0.000022] (over the next four years?). Based on
    > population, Oregon's contribution would be approximately 1.1%, or about 4600
    > lbs. (2.2 tons).
    >
    > I am not at all confident in these figures. Any assistance you could
    > provide would be greatly appreciated. It seems like this is something that
    > someone should have better data on!
    >
    > Thanks!
    > Laura
    >
    >
    > ****************************
    > Laura Weiss
    > Pesticides and Toxics Program Director
    > Oregon Environmental Council
    > 520 SW 6th Ave
    > Suite 940
    > Portland, OR 97204
    > 503-222-1963 ext 111
    > 503-222-1405
    > laura@orcouncil.org
    > www.orcouncil.org



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