Only Dust

Could I respond to (with the camera) only dust for a year, or so?
just crap in the air.
flux
movement
crud
What led to this thought?
Something about looking at a photo of me, older, with lots of grey in my hair.
grey dust
atmospheric, dust
ground fallen, dust

Dirt, skin, plant.
Floats in the air - matter, matter, everywhere (but not a....?)