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10HgSP09-1 - Compact fluorescent bulbs save huge amounts of...

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Compact fluorescent bulbs save huge amounts of electricity. But there is one thing that worries people: Compact fluorescent bulbs contain a small amount of mercury . If one breaks in your house, clean it up carefully , In way that doesn't spread dust (i.e. with a wet paper towel, not a vacuum cleaner).
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Mercury 1 gram Equals total Annual deposited On a 27 acre lake Wisconsin Power plant 100 megawatt = 50 g Hg /yr to environment
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Mercury: Hg Uses: Tanning (low quality fur) Catalyst (chloralkali) Electrolytic Processes Instruments Fungicide Amounts: 10,000 metric tons/y used 3,000 metric tons/y Combustion small amount from natural releases Hazards: Hg salts NOT “very” toxic & excreted well Organo-Hg (esp Me-Hg) VERY TOXIC & Not Excreted Well
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Mercury: Hg Uses: Tanning (low quality fur) Catalyst (chloralkali) Electrolytic Processes Instruments Fungicide Amounts: 10,000 metric tons/y used 3,000 metric tons/y Combustion small amount from natural releases Hazards: Hg salts NOT “very” toxic & excreted well Organo-Hg (esp Me-Hg) VERY TOXIC & Not Excreted Well
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Mercury: Hg Uses: Tanning (low quality fur) Catalyst (chloralkali) Electrolytic Processes Instruments Fungicide Amounts: 10,000 metric tons/y used 3,000 metric tons/y Combustion small amount from natural releases Hazards: Hg salts NOT “very” toxic & excreted well Organo-Hg (esp Me-Hg) VERY TOXIC & Not Excreted Well
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EG – Minamata Disease Industrial Source of Hg 2+ and Org-Hg Bioaccumulated and Biomagnified in Fish& shellfish – 50 mg/kg Result – neurotoxicity – Headache, Numbness, Visual Disturbance Bleeding Gums, Respiratory Failure, Death 43 died, 111 severely disabled, 1000s hurt
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Minamata – some say as many as 700 dead and 9000 poisoned Others: Iraq – 95,000 tons seed corn, 1971/72 fungicide treated >6500 poisoned, 500 dead Lake Erie contamination chloralkyli plants Scandanavian Lakes Canadian Lakes
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Ocean (Pelagic Fish) swordfish example woman ate 12oz/day, For 10 months Stnd FDA = 1 ppm (1 mg/kg)
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