('US') He stood up and 'dusted himself off'. = ('Brit') He stood up and 'dusted himself down'. [=he brushed the dirt/dust off his clothes]
The police 'dusted' the table for fingerprints. [=they put a fine powder on the table so that any fingerprints could be seen]
I'll call you 'as soon as the dust settles' from the move. [=as soon as I am not busy with moving]
(..) Its Black Gates are guarded by more than just Orcs. There is evil there that does not sleep. The Great Eye is ever-watchful. It is a barren wasteland... ...riddled with fire,and ash and dust. The very air you breathe is a poisonous fume. Not with men could you do this. It is folly. (..)2001 The Lord of the Rings: The Fellowship of the Ring