Dust particles are commonly categorized by their size, which influences their health effects and behavior in the environment. The main categories include:
PM10: Particulate matter with a diameter of 10 micrometers or less. These particles can enter the respiratory tract but are generally filtered by the upper airways. PM2.5: Particulate matter with a diameter of 2.5 micrometers or less. These smaller particles can reach the alveoli in the lungs and are associated with more severe health effects. Ultrafine Particles: Particles with a diameter of less than 0.1 micrometers. They have a high surface area relative to their mass, which can enhance their potential to carry toxic substances.
