Nanomaterials are substances that have one or more dimensions in the nanoscale range; typically between 1 to 100 nm. As nanomaterials have unique structures or molecular arrangements, they exhibit different (novel) electronic, mechanical, optical and magnetic properties compared to their macroscale counterparts. In usage, they may convey potential adverse impacts on human health and/or the environment. Accordingly, the regulatory framework under the Canadian Environmental Protection Act (CEPA 1999) enables the responsible introduction of nanomaterials into Canadian economic activities via the New Substances risk assessment process.

For more information, visit the Environmental Health and Safety website