粉塵

1. Origins, structure, and basic meaning

• Structure: 粉塵 is read as ふんじん and refers to fine dust or particulate matter that becomes airborne during work or construction.
• Basic usage: It appears when dust rises into the air and in safety contexts involving the prevention of inhalation.

2. Common pitfalls and similar expressions

• Dust becoming airborne
  • 細かな粉塵が舞い上がる describes fine dust rising and dispersing in the air. Example: 工事現場から細かな粉塵が舞い上がった。
• Avoiding inhalation
  • 粉塵を吸わないよう means taking care not to inhale the dust and explains the purpose of wearing a mask. Example: 作業員は粉塵を吸わないようマスクを着けた。