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Heavy metal ions

Heavy metal ions. Some metal ions are good!. Fe 2+ , K + , Ca 2+ , Mg 2+ Essential to the health of humans. May be in water but mostly get in food we eat. Heavy metal ions are harmful!. Lead- Pb 2+ Mercury- Hg 2+ Bind to proteins preventing them from doing their intended tasks

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Heavy metal ions

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  1. Heavy metal ions

  2. Some metal ions are good! • Fe2+, K+, Ca2+, Mg2+ • Essential to the health of humans. • May be in water but mostly get in food we eat.

  3. Heavy metal ions are harmful! • Lead- Pb2+ • Mercury- Hg2+ • Bind to proteins preventing them from doing their intended tasks • Damage to nervous system, brain, kidneys, and liver

  4. Lead (pB) • Sources in environment: • Paint- most paints no longer contain lead • Automobile batteries • Leaded gasoline until 1970’s • Lead pipes in older homes

  5. Mercury • Sources in environment; • Fluorescent light bulbs • Medical thermometers • Formally used in antiseptics and pesticides

  6. Mad Hatter- due to mercury poisoning

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