18.7 MB (1.9 MB compressed)
2848 x 2290 pixels
24.1 x 19.3 cm ⏐ 9.5 x 7.6 in (300dpi)
VOLKER STEGER / SCIENCE PHOTO LIBRARY VOLKER STEGER / SCIENCE PHOTO LIBRARY
Household dust. Coloured scanning electron micrograph (SEM) of a sample of household dust. Such dust comprises shed skin cells, hairs, soil and earth, pollen grains, fungal spores and particles of food. Some of these substances may cause allergic reactions in susceptible people. Magnification unknown.
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