Air pollution

Air pollution

Air pollution is the introduction of chemicals, particulates or biological materials into the atmosphere which cause damage to the natural environment and have adverse health affects on organisms.

Industry: Pollution control

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Air pollution

Precipitator

Pollution control; Air pollution

Pollution control device that collects particles from an air stream. (See Electrostatic Precipitator. )

Precursor of ozone, NO 2 , and nitrate; nitric oxide is usually emitted from combustion processes. Nitric oxide is converted to nitrogen dioxide (NO 2 ) in the atmosphere, and then becomes involved ...

Environmental tobacco smoke

Pollution control; Air pollution

Primarily a combination of sidestream smoke from the burning end of a cigarette, pipe or cigar, and exhaled mainstream smoke from the smoker. Other components include smoke emitted at the mouthpiece ...

Primary particles

Pollution control; Air pollution

Particles that are directly emitted from combustion and fugitive dust sources. (Compare with Secondary Particle. )

Secondary particle

Pollution control; Air pollution

Particles that are formed in the atmosphere. Secondary particles are products of the chemical reactions between gases, such as nitrates, sulphur oxides, ammonia, and organic products.