Dust

{
  "id": "MLC-T-CHM-003481",
  "term": "Dust",
  "field": "Chemistry",
  "definition": "Small, dry solid particles projected into the atmosphere by natural forces, such as wind or volcanic eruptions, or through mechanical processes like grinding and crushing. These particles are irregularly shaped and have diameters greater than those of colloids. Dust can remain suspended in the air for extended periods before settling out due to gravity, with particle sizes generally considered to be greater than 1 micrometer, distinguishing them from smaller aerosol particles like smoke.",
  "subject": "Chemistry and the Environment",
  "references": [
    "PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2185 (https://doi.org/10.1351/pac199062112167)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/dust/"
}