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

Mar 1, 2026 · 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.

Apr 7, 2026 · 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 …

May 27, 2025 · Particle pollution, also called “particulate matter” or “soot,” refers to a mix of tiny solid and liquid particles that are in the air we breathe.

PARTICULATE MATTER meaning: 1. substances that consist of very small pieces of dirt, especially ones produced by road vehicles…. Learn more.

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

They are a kind of air pollution called particles or particulate matter. In fact, particulate matter may be the air pollutant that most commonly affects people's health.

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.