Particulate matter (PM) or particulates[a] are microscopic particles of solid or liquid matter suspended in the air. An aerosol is a mixture of particulates and air, as opposed to the particulate matter alone, [1] …

May 30, 2025 · PM stands for particulate matter (also called particle pollution): the term for a mixture of solid particles and liquid droplets found in the air. Some particles, such as dust, dirt, soot, or smoke, …

Particulate matter is a type of air pollution that consists of airborne suspensions of extremely small solid or liquid particles, such as soot, dust, smokes, fumes, and mists.

PARTICULATE definition: of, relating to, or composed of distinct particles. See examples of particulate used in a sentence.

PARTICULATE meaning: 1. an extremely small piece of dirt, especially one produced by road vehicles, that causes…. Learn more.

The meaning of PARTICULATE is of or relating to minute separate particles. How to use particulate in a sentence.

Nov 13, 2025 · Satellite data indicate that PM 2.5 levels have decreased by about 30% over the Eastern U.S. from 1998 to 2012 (Boys et al., 2014) because of emission control measures, but …

Particulate matter, or PM, is the term for particles found in the air, including dust, dirt, soot, smoke, and liquid droplets. Particles can be suspended in the air for long periods of time.

Formed of very small, separate particles. Dust and soot are forms of particulate matter.

Particulates, also referred to as particulate matter (PM), aerosols, or fine particles, are tiny particles of solid or liquid suspended in a gas. They range in size from less than 10 nanometers to more than …