The association between dust exposure kiln-drying the green timber; and 4) high exposure to dry dust: workers processing kiln-dried timber in the planer mill, remanufacturing and moulding. Dust (including chemicals such as resin acids and monoterpenes) associated with processing fresh timber before it is kiln-dried is referred to as green dust; dust associated with processes that take place after
kiln drying is referred to as dry dust.