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05.05.2008
What Is This? A Toy Set for a Microscopic Child?
Here's a hint: It's part animal, part vegetable, and a smidge mineral.
A. Syred/Photo Researchers
This false-color image of household dust was captured with a scanning electron microscope at 115x, giving a cozy view of the allergens within—including cat hair, synthetic fibers, pollen, and even insect scales. The Centers for Disease Control says household dust is a “major source of lead”
and encourages people to mop floors and wipe surfaces with a wet rag, for health’s sake. The National Institutes of Health has also found that bacteria in dust can trigger asthma. To study the health hazards, the government sells 10-gram samples of dust to researchers for $475.
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