Term: grit
https://doi.org/10.1351/goldbook.G02701

Definition:
Airborne solid particles in the atmosphere which are of natural or manmade origin and which remain in suspension for some time; in the United Kingdom the size of the grit particles is defined as greater than 75 µm in diameter (retained on a 200 mesh British Standard sieve).

Related Terms:
1) suspension (http://doi.org/10.1351/goldbook.S06198).

Source: PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2193 (https://doi.org/10.1351/pac199062112167)

Citation: 'grit' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.G02701

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