Stirring Up Dust [Part I]

If, as anthropologist and cultural theorist Mary Douglas writes, dirt is “matter out of place,” then what can be say about dust, which in a way is just dirt, airborne? How can we even define the boundaries of a place as nebulous and indeterminate as “the atmosphere?” Most importantly, how does the figure of dust (and smoke and clouds and exhaust and fog and haze) open up alternative ways of thinking about people, place, and air pollution?