Particulate matter

Similar term(s): PM, suspended particulate matter, total suspended particulates, black smoke, inhalable particles, thoracic particles, respirable particles.

Sum of all microscopic solid and liquid particles, of human and natural origin, that remain suspended in a medium such as air for some time. These particles vary greatly in size, composition, and origin, and may be harmful.

Particulate matter may be in the form of fly ash, soot, dust, fog, fumes etc.

Source: GreenFacts

Based on the size of their aerodynamic diameter particles can be classified as PM₁₀ (coarse and fine particles), PM_2.5 (fine particles) or PM_0.1 (ultrafine particles).

Source: GreenFacts

Aerodynamic diameter - Aerosol - Coarse particles - Fine particles - PM₁₀, PM_2.5, PM_0.1 - Primary & secondary particles

Español: Partículas en suspensión
Français: Particules en suspension

Respiratory Diseases

PCBs

Ozone

Particulate Matter

Nitrogen Dioxide