Matter (PM) Solid particles or liquid droplets suspended or carried in the air (e.g., soot, dust, fumes, mist). 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.
a tiny bit of solid or liquid matter (soot, dust, fumes, aerosols, mist, etc.) suspended or carried in the air. Fine particulate matter smaller than 10 microns in diameter is called PM10. One hair on your head is approximately 70 microns in diameter, so you see PM10 is really, really small.
Consisting of particles, often of a small size. This term is used most often in reference to enclosure substrates. Iguanas have the propensity to ingest particulate substrates such as wood chips. Since these substances can get stuck in the gut, causing impaction (see above), they should be avoided.
1. Fine liquid or solid particles such as dust, smoke, mist, fumes, or smog found in air or emissions. 2, Very small solid suspended in water. They vary in size, shape, density, and electrical charge, can be gathered together by coagulation and flocculation.
A small, discrete mass of solid or liquid matter that remains individually dispersed in gas or liquid emissions. Particulates take the form of aerosol, dust, fume, mist, smoke, or spray. Each of these forms has different properties.
A small, solid piece of matter that is easily lifted into the air, such as dust or ash. Smaller, fine particulates are more hazardous than larger, coarse ones because they are more easily inhaled deep into the lungs.
Particulates, alternatively referred to as particulate matter (PM), aerosols or fine particles, are tiny particles of solid (a smoke) or liquid (an aerosol) suspended in a gas. They range in size from less than 10 nanometres to more than 100 micrometres in diameter. This range of sizes represent scales from a gathering of a few molecules to the size where the particles no longer can be carried by the gas. sources of particulate mater can be anthropogenic or natural.