In this episode host Mark Reggers and guest Peter Knott, occupational hygienist with GCG Consulting continue where they left off and resume their discussion on the subject matter of coal dust. Coal dust is a fine powdered form of coal which is created by the crushing, grinding or pulverising of coal during mining, handling and transportation. Coal dust exposure is hazardous to mine workers, placing them at risk of developing a dust-related lung disease, in particular, Coal Workers Pneumoconiosis (CWP), commonly known as ‘black lung disease’.