Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)
House Dust,Housedust,Dust, House
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Environmental Exposure
The exposure to potentially harmful chemical, physical, or biological agents in the environment or to environmental factors that may include ionizing radiation, pathogenic organisms, or toxic chemicals.
Asbestos. Fibrous incombustible mineral composed of magnesium and calcium silicates with or without other elements. It is relatively inert chemically and used in thermal insulation and fireproofing. Inhalation of dust causes asbestosis and later lung and gastrointestinal neoplasms.
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Australia
The smallest continent and an independent country, comprising six states and two territories. Its capital is Canberra.
Canton and Enderbury Islands,Christmas Island,Christmas Island (Australia)