Dust properties

Dust has the nature of the "inert" is a direct effect but can accumulate in the lung tissue when continuously for long periods can occur with lung disorders called pneumoconiosis, but the nature of the dust has various properties, among others, are settled. Dust tends to always settle for gravitational influence of the earth. However, because the small size of this dust is sometimes relative is in the air. The nature of the surface is wet, wet dust will likely always be covered by a very thin layer of water. Clumping is, surface dust that is always wet facilitate clotting, tarbulensi air will increase the formation of clots. Static electricity is the dust has electrical properties that can attract other particles in the opposite. Is optical, dust or wet or moist particles can emit visible light in a dark room.