Particulates

microscopic solid or liquid matter suspended in the Earth's atmosphere

small particle (typically 0.2 µm) on which water vapor condenses

(of a granular material) steepest angle of descent or dip relative to the horizontal plane to which a material can be piled without slumping. At this angle, the material on the slope face is on the verge of sliding

The sulfate or sulphate ion is a polyatomic anion with the empirical formula . Salts, acid derivatives, and peroxides of sulfate are widely used in industry. Sulfates occur widely in everyday life. Sulfates are salts of sulfuric acid and many are prepared from that acid.

rapid combustion of fine particles suspended in the air

particle formed in the respiratory system too large to become airborne

atmospheric soot; component of fine particulate matter

overall density of a granular material, with void space included in the denominator

Particle helping to form an ice crystal

thumb|right|200px|A layer of cryoconite on the surface of a glacier. Cryoconite is powdery windblown dust made of a combination of small rock particles, soot and microbes which is deposited and builds up on snow, glaciers, or ice caps. The darkening, especially from small amounts of soot, absorbs solar radiation melting the snow or ice beneath the deposit, and sometimes creating a cryoconite hole. Cryoconite may contain dust from far away continental deserts or farmland, particles from volcanic eruptions or power plant emissions, and soot. It was first described and named by Nils A. E. Nordens

form of precipitation containing visible dust

classification of particle sizes

particulate matter of nanoscale size

Clouds that form around the exhaust released by ships

the effect of solar radiation being deflected by clouds

process by which aerosol particles collect or deposit themselves on solid surfaces

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density of individual particles contained in a granular material or other heterogeneous mixture

hypothesis