Nanomaterials Notified in Canada and the US
The dataset used as a basis for the analysis of nanomaterial use information came from new nanomaterials notifications to the Canada/US Programs. In the US, Pre-Manufacture Notices (PMNs) regarding new substances are made to the New Chemicals Program under the Toxic Substances Control Act (TSCA); in Canada New Substances Notifications (NSNs) are submitted to the New Substances Program according the New Substances Notification Regulations (Chemicals and Polymers) of the Canadian Environmental Protection Act 1999 (CEPA 1999). As part of the RCC Work Plan, the two countries shared non-Confidential Business Information (CBI) and analyzed trends in new nanomaterial notifications within the two countries.
As of September 2013, the Canadian New Substances Program had assessed approximately 18 nanomaterials; the US New Chemicals Program had assessed approximately 130. In terms of notified uses, there was considerable consistency between the Canada/US Programs. The most prevalent uses were coatings, mechanical strength additives (e.g., composites), chemical intermediates, conductive additives, and dyes/inks. Production volumes in notifications to both the Canadian and US Programs ranged widely, from less than 100 kg to greater than 10,000 kg per notified nanomaterial.
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