A smoke that has many particulates in it from inefficient combustion; comes from burning fossil fuel, either coal or oil.



Related Terms

PARTICULATES

The residue left over from coal and fuel oil combustion.

GREAT LAKES SHIP

Cargo ship used to carry cargo on the Great Lakes. Most carry bulk cargoes of grain, iron ore or coal.

FUNNEL

The smokestack of a ship, used to expel boiler steam and smoke or engine exhaust.

SMOG

Originally a natural fog contaminated by industrial pollutants, or a mixture of smoke and fog. Today, smog is a common term applied to visible air pollution with or without fog.

RINGLEMANN CHART

A series of four rectangular grids of black lines of varying widths printed on white background, used in criterion of blackness for determining smoke density from chimneys.

FILTRATION

The physical or mechanical process of separating insoluble particulate matter from a fluid, such as air or liquid, by passing the fluid through a filter medium that will not allow the particulates to pass through it.

FUEL NOx

NOx that is formed from nitrogen that is organically bound to the fuel molecule. Fuel NOx is most often a problem with liquid fuel or coal burning. Once the nitrogen has been cracked from the fuel molecule, the mechanism follows basically the same path as the prompt NOx mechanism.

GLOOM

The condition existing when daylight is very much reduced by dense cloud or smoke accumulation above the surface, the surface visibility not being materially reduced.

COLLIER

Vessel used for transporting coal.

BULK CARGO

Cargo such as oil, coal, ore, woodchips, etc. not shipped in bags or containers

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