Fine particles, PM2.5, and coarse particles, PM10, can penetrate deep into the lungs, triggering inflammation and oxidative ...

Particles with diameters between 2.5 and 10 micrometers are correspondingly known as coarse and typically are primary particles generated by physical-mechanical processes (Seinfeld & Pandis ...

Grit measures sandpaper’s coarseness, determined by the size of the abrasive particles on its surface. A coarse grit wears down whatever you’re sanding more quickly, but it also leaves deep ...