airborn pollution

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Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… … Wikipedia
Bioaerosol — A bioaerosol is a biological aerosol. These particles are very small and range in size from less than one micrometer (0.00004 ) to one hundred micrometers (0.004 ). Bioaerosols react to air currents and move quickly or slowly depending on the… … Wikipedia
National Audubon Society v. Superior Court — National Audubon Society Formation 1905 Type Non profit organization Purpose/focus Conservation of birds, other wildlife and healthy ecosystems. Headquarters New York, NY Coordinates … Wikipedia
Ultrafine particles — (UFPs) are nanoscale, less than 100 nanometres. Clusters of UFPs can be seen with the naked eye. But, electron microscopy and special physical lab conditions allow scientists to observe UFP morphology. UFPs are both manufactured and naturally… … Wikipedia

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