2012-04-13

Heavy Metals.

What a wonderful way to end year-two, with Dr. Phil! Dr. Phil was one of the most inspiring professors this year.  He taught the course Clinical Nutrition. I learned more in one of his classes than I did in after completing an entire semester in other courses. He ended the class wishing us well; telling us that we have entered a very special profession and that we are going to help many people's lives.  A simple comment, but inspiring and motivating... a lovely thing to hear especially when exams loom.

One of his classes earlier in the semester was about environmental medicine.  We talked about heavy metal poisoning (often a cause of Autism!).  He told us that whenever we see a patient presenting with neurological complaints (including Autism or an Alzheimer's-like presentation) or unexplained abdominal pain, consider heavy metal poisoning.  The follow are common sources of heavy metals. Remember, heavy metals are toxic!

Mercury:
         Latex and paint
         Polluted water
         Broken thermometers
         Vaccines
         Fish (tuna!)
         Dental amalgams
         Pesticides

Lead:
         Lead based paint
         Drinking water (lead pipes)
         Plastic mini blinds
         Some fertilizers
         Batteries
         Lead glazed cookware

Cadmium:
         Automobile exhaust
         Water (galvanized pipes)
         Tobacco
        Refined flour/rice
         Batteries
        Metal rust-proofing material

Arsenic:
         Insecticides (especially those for ants)
         Wood preservatives
         Shellfish
         Well water

Aluminum:
         Aluminum welding
         Municipal water
         Processed foods (pop cans!)
         Antacid medications (like Tums)
         Aluminum cookware
Tin:
         Insecticides 
         Food preservatives
         Dental materials
         Tin coated cans

2 comments:

  1. Mercury, and sometimes other heavy metals, are also found in fluorescent lights, like the long troffer lights found in most public buildings and the little coils which have replaced old-style incandescent bulbs. It is very important to take them to a proper recycling facility after they burn out, or if they break. Throwing them out with the trash can lead to environmental contamination.

    On the brighter side (*Knee-slap!) LED lights do not contain mercury. They are also more electrically efficient and much longer-lasting than fluorescents, and in addition they produce a more natural tone/colour of light than fluorescents. Keep an eye out for LEDs next time you have to replace a lightbulb!

    ReplyDelete
  2. Funny you say that, because I read all about LED lights on this really neat blog recently :P

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