Mercury

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Mercury

  1. 1. Mercury V.S.S.Nair Administrative Officer S.U.T. Group of Hospitals
  2. 2. Only metal which is liquid at NTP Called ‘Quick Silver’ because of its Silvery white appearance Heavy, odorless, lustrous, sinks in water Poor conductor of heat Fair conductor of electricity
  3. 3. <ul><li>Mercury has Unique characteristics - Very effective in electric switches, thermostats, appliance switches. - Has high surface tension, rolls freely inside glass bulbs </li></ul>
  4. 4. As it moves within the switch it makes or breaks electrical circuits For lighting, heating, cooling or pumping Mercury thermostats recognized and valued for their accuracy reliability and long life.
  5. 5. Used in medicines, ointment, light bulbs, fluorescents lights, batteries Out door and fever thermometers Toys, Pesticides, skin creams gas appliances, household cleaners , BP gauges, antibacterial soaps, High Intensity discharge lamp.
  6. 6. How Much Mercury? Barometers 500grams Thermostats 4.5grams Fever thermometers 1gram Small switches 4grams Large switches up to 40grams Compact lights 17.5 milligrams HID lamps 35milligrams Fluorescent bulbs 5milligrams/linear ft. Button cell batteries 9 milligrams Blood pressure 110 grams Monitors
  7. 7. mercury enters the environment when these products are broken or disposed
  8. 8. Mercury when exposed becomes airborne washes into lakes, streams and ground water when it rains
  9. 9. Bioaccumulation It gathers in the bodies of organisms to gradually accumulate . Instead of being broken down by an organisms systems it simply builds in concentrations
  10. 10. Mercury is toxic In human mercury affects the brain, spinal cord, kidneys and liver and causes impaired speech, vision, hearing and motor skills
  11. 11. <ul><li>Through natural bacterial processes in the water, mercury is converted into its most toxic form-methyl-mercury, which is eaten by plankton. </li></ul>
  12. 12. <ul><li>Fish consume the plankton and the toxic element begins it way up the food chain, building up in the tissue of wildlife and humans. </li></ul>
  13. 13. <ul><li>1gram of mercury pollutes 26 acres of a lake </li></ul>
  14. 14. <ul><li>One gram of mercury </li></ul><ul><li>Is sufficient to make </li></ul><ul><li>One ton of fish </li></ul><ul><li>Unfit for consumption. </li></ul>
  15. 16. <ul><li>Regulations </li></ul><ul><li>Municipal wastes </li></ul><ul><li>Health care wastes </li></ul><ul><li>Industrial and hazardous wastes </li></ul><ul><li>Lead batteries </li></ul>
  16. 17. <ul><li>STANDARDS </li></ul><ul><li>Treatment and disposal of Toxic substances </li></ul><ul><li>Landfills </li></ul><ul><li>Bio Medical waste technologies </li></ul>
  17. 18. No law in India !!
  18. 19. <ul><li>Import as much mercury as you need </li></ul><ul><li>( 2000MT) </li></ul><ul><li>Sell anywhere you like </li></ul><ul><li>Dispose anyway you feel </li></ul>
  19. 20. Health care industry is a significant contributor to Mercury pollution. There are nearly 100 devices, instruments and chemicals used in health care settings that may contain Mercury.
  20. 21. <ul><li>200 million fluorescent lights produced </li></ul><ul><li>Means – 400 kg. Mercury thrown out every year, mostly in the cities </li></ul><ul><li>More than 500,000 thermometers broken in one year in hospitals alone in Kerala-500kg of mercury every year into the soil. </li></ul>
  21. 22. <ul><li>Absolutely no idea about the harm this can create </li></ul>
  22. 23. <ul><li>Dental amalgams.. </li></ul><ul><li>Another problem…..not just teething! </li></ul>
  23. 26. Pollution from Mercury in Miamata, Japan.
  24. 27. THANK YOU

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