Mould and Silica Exposure
This DVD includes two videos that highlight the risks of exposure to two common substances: mould and silica.
This video shows how mould can grow quickly on damp materials such as cardboard, paper, wood, and drywall. As mould grows, it releases spores into the air. Exposure to mould spores can affect your health, especially if you have allergies, asthma, or a weak immune system. (1 min 48s)
Silica is a common substance found in sand, rock, and building materials such as concrete and brick. Cutting, grinding, or drilling these materials releases dangerous crystalline silica dust into the air. This video shows how breathing in silica dust can cause permanent damage to the lungs. (2 min 01s)