The only relevant "dust" references in my holiday camera manual are:
Do not store or use the camera in locations that are:
very humid or extremely dusty
Build up of dust in your camera can cause fire or electric shock.
I wonder if using compact cameras (i.e. without interchangeable lenses) but with a zoom lens in a dusty environment can consequently cause stains on images similar to DSLRs or other problems?
I'm specifically asking on zoom lens cameras where the telescopic part can gather dust/pollen/... and then folds into the camera body.