黄砂

1. Origins, structure, and basic meaning

• Structure: 黄砂 is read as こうさ and is a noun for yellow dust or sand that can obscure visibility in the air or settle on surfaces.
• Basic usage: Use 黄砂で山がかすむ for reduced visibility and 黄砂が薄く積もる for a light deposit on a surface.

2. Common pitfalls and similar expressions

• Causal で
  • The で in 黄砂で marks the cause of the hazy view, not the place where the action occurs.
• Airborne and deposited dust
  • The word can describe the atmospheric event as well as the dust left on a window afterward.