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University of California, Santa Barbara Mercury Thermometer Exchange Program Environmental Health & Safety Laboratory Research and Technical Staff: LabRATS The Green Initiative Fund (TGIF)
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Mercury Uses: Thermometers Fluorescent Lamps Bubblers Barometers Thermostats Auto Door/Trunk Switches Novelty Devices (kids shoes) Dental Fillings Gold Mining Vaccines Paint Additive Batteries
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National Geographic, 1972
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Why Mercury Thermometers? Potential for environmental release and human exposure when they break Reduction in spill clean up costs There are cheap and available alternatives
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Project Goals: Reduce health and environmental risks of mercury pollution Reduce time and cost of cleaning up broken mercury thermometers Educate campus laboratories about non-toxic alternatives
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Project Description: Collect mercury thermometers from labs and send to a recycling facility Replace with non-toxic thermometers (goal is to replace 300 thermometers) Change future purchasing behaviors Volunteer Program (not a mercury ban)
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Thermometer Exchange VWR Exchange Program – accepts back the non-broken mercury thermometers at no cost sends to UC approved recycler Cradle-to-grave documentation Easy-Read Partial Immersion -20 to 150 degree C Accuracy is +/- 1 celcius
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Goal #1 Reduce Environmental/Health Risks u Elemental Mercury vapor is dangerous to human’s nervous system OSHA: 0.05 mg/m3 (niosh) Thermometer has 1 - 3 grams of mercury u Organo-mercury compounds (methylmercury) bioaccumulates in the tissue of fish Extremely toxic u EPA hazardous waste level is 0.2mg/L u Goleta Sanitary District discharge limit is.025mg/L
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Environmental/Health Examples Minamata Disease (Japan-2,200 victims) 1932-1968 Dartmouth professor dies from dimethylmercury exposure 1997 Mad Hatters Syndrome (felt making) EPA and FDA fish consumption advisories Fish high as 1ppm
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Goal #2 Reduce Cleanups of Broken Thermometers Counter tops, floors, fumehoods, sink traps, ovens, water baths, truck beds, lawns… Time & cost of cleanup $69/thermometer 24 breaks/year $1200 in savings per year
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Goal #3 Education & Purchasing Promote Alternatives EnviroSafe Citrus oil Mineral Spirit Thermometers Alcohol Digital Infrared Bimetallic strip Target faculty, staff, students & purchasing agents in laboratory areas Change purchasing behavior Accuracy of non-mercury thermometers are as great.
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Program Summary TGIF Grant $6,490.00 (materials/labor) Program financial payback 5 years (~$1,200/yr in cleanup costs) Environmental/Health impacts difficult to quantify Measure of Success Participation/interest fewer number of spills
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