This question is about small particles. Which type of particle is often referred to as dust?

Particulate matter is often categorised by size:\n- **Coarse particles (PM₁₀):** Diameters between 2,500 nm and 10,000 nm. This category includes dust, pollen, and mould spores.\n- **Fine particles (PM₂.₅):** Diameters between 100 nm and 2,500 nm. These are typically from combustion sources.\n- **Nanoparticles:** Diameters between 1 nm and 100 nm. These are engineered particles or by-products of some processes.\nDust fits into the category of coarse particles.