On the shipping forecast they use the term smoke. On the shipping forecast they use the term smoke.
Smoke is used to describe a certain condition of visibility.
When visibility is low, you assume something is in the air to cause that low visibility. When it's water drops then that's called mist or fog, when it's drier, it's called haze. And there are two types of haze. Dust is the most common, but you also get smoke haze resulting from actual smoke or pollutants.