November 17, 2009
DUSTOLOGY: You guessed it………………………………………The Study of Dust. Dust is a general name for minute solid particles with diameters less than 20 thou (500 micrometers). Particles in the atmosphere arise from various sources such as soil dust lifted up by wind, volcanic eruptions, and pollution. Dust in homes, offices, and other human environments consist primarily of human […]
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November 16, 2009
First a definition provided by the U.S. EPA: ( www.epa.gov) Dust mites are tiny insects that are invisible to the naked eye. Every home has dust mites. They feed on human skin flakes and are found in mattresses, pillows, carpets, upholstered furniture, bed covers, clothes, stuffed toys and fabric and fabric-covered items. Body parts and […]
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