fine dust; particulate dust
Refers to very fine airborne dust, especially mineral or industrial dust such as coal dust, rock dust, or fine particles from crushing or grinding. Often used in technical, safety, or environmental contexts.
In factories, ventilation is important to prevent dust explosions.
Dust flew up during the tunnel construction.
Standard kanji spelling.
Mixed kana spelling; 塵 is not a jōyō kanji, so this form is sometimes used in official or simplified contexts.
Compound of 粉 (powder) and 塵 (dust). The reading ふんじん is the standard on'yomi combination.