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Air Junk: Specks, Flecks and Particles in the Air
If you could see your specks, flecks, and particles through a microscope, they would match some of these 'micro portraits.'
Dust, Pollen, Mold
Sand, Skin Flakes, Pet Dandruff
We marked common causes of allergies or asthma with a *. The "x" numbers tell you how much larger than actual size each item is shown.
  1. dust* (1,200x)
  2. pollen* (1,600x)
  3. mold* (950x)
  4. sand (820x)
  5. skin flakes (220x)
  6. pet dandruff* (650x)


Think about this:
 If you have allergies or asthma, it is important to reduce the amount of junk in your air.
Here's advice from the American Lung Association
Go back to the beginning!


Adapted from inquire-within take-home-science, Children's Museum, Boston, MA
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