Particulate matter (PM)

Particulate matter (PM)

Any material, except pure water, that exists in the solid or liquid state in the atmosphere. The size of particulate matter can vary from coarse, wind-blown dust particles to fine particle combustion products. For more information, please take alook at our PM brochure.

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Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Pollution control
Category: Air pollution
Company: ARB
Product:
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particulate matter (PM)

Pollution control; Air pollution

Any material, except pure water, that exists in the solid or liquid state in the atmosphere. The size of particulate matter can vary from coarse, wind-blown dust particles to fine ...

particulate matter (PM)

Energy; General

Unburned fuel particles that form smoke or soot and stick to lung tissue when inhaled. A chief component of exhaust emissions from heavy-duty diesel engines.

particulate matter (PM)

Energy; Bioenergy

Fine particles of solids suspended in gas. Anthropogenic sources of aerosols originate from the burning of fossil fuels or from wind-blown dust from construction and agricultural ...

particulate matter (PM)

Natural environment; Climate change

Very small pieces of solid or liquid matter such as particles of soot, dust, fumes, mists or aerosols. The physical characteristics of particles, and how they combine with other ...

lead

Pollution control; Air pollution

A gray-white metal that is soft, malleable, ductile, and resistant to corrosion. Sources of lead resulting in concentrations in the air include industrial sources and crustal ...

nonattainment area

Pollution control; Air pollution

A geographic area identified by the U. S. EPA and / or CARB as not meeting either NAAQS or CAAQS standards for a given pollutant. For more information, please view our designated ...

air toxics

Pollution control; Air pollution

A generic term referring to a harmful chemical or group of chemicals in the air. Substances that are especially harmful to health, such as those considered under U. S. EPA's ...

nitrogen oxides

Pollution control; Air pollution

A general term pertaining to compounds of nitric oxide (NO), nitrogen dioxide (NO 2 ) and other oxides of nitrogen. Nitrogen oxides are typically created during combustion ...

primary standard

Pollution control; Air pollution

A dosage of air pollution scientifically determined to protect against human health effects such as asthma, emphysema, and cancer.

propellant

Pollution control; Air pollution

A gas with a high vapor pressure used to force formulations out of aerosol spray cans. Among the gases used are butanes, propanes and nitrogen.

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