Wikipedia - Polvere (it) dust

in atmospheric chemistry
https://doi.org/10.1351/goldbook.D01867
Small, dry, solid particles projected into the air by natural forces, such as wind, volcanic eruption and by mechanical or man-made processes such as crushing, grinding, milling, drilling, demolition, shoveling, conveying, screening, bagging and sweeping. Dust particles are usually in the size range from about $$1-100\ \unicode[Times]{x3BC}\text{m}$$ in diameter and they settle slowly under the influence of gravity.
Source:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2185 [Terms] [Paper]