Definition of dust Dust consists of airborne, minute solid particles with a diameter of less than 500 micrometres. Larger particles tend to fall to the ground quickly whereas very fine particles can remain suspended in the air for considerable lengths of time. Two main types of worksite-related dust can cause health problems. These are respirable dust and irritant dust. Respirable dust poses the greatest risk to humans as it can be retained in the lungs causing permanent damage. Examples of this kind of dust include asbestos dust and free crystalline silica. Irritant dust is any type of dust that contains [...]
To minimise the risk of health hazards or explosion hazards associated with dust, it is advisable to seek expert advice to evaluate which dust suppression method will work best on a particular site. The hazards associated with dust can be very serious and it is vitally important to select the method that will offer the best protection.