What Does PM Stand For?

PM stands for Particulate Matter

Particulate Matter (PM) refers to a mixture of tiny solid particles and liquid droplets suspended in the air. These particles vary in size, composition, and origin, and are classified mainly into PM10 (particles with a diameter of 10 micrometers and smaller) and PM2.5 (particles with a diameter of 2.5 micrometers and smaller). PM is a significant component of air pollution and poses health risks, as it can penetrate the respiratory system and affect cardiovascular health. Monitoring and controlling PM levels are essential for public health and environmental protection.

Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym

Other Meanings for PM