Priority Substances List Assessment Report: Benzidine. Canadian EnvironmentalProtection Act

摘要

Benzidine has been used primarily as an intermediate in the manufacture of dyesand pigments. It is not produced in Canada, and although it may have been imported in small amounts between 1980 and 1987, there no longer appears to be any commercial activity in Canada involving this substance. No conclusifve informatio on the release or occurrence of benzidine in the Canadian environment was identified. Based on these considerations, the Ministers of the Environment and of Health have concluded that benzidine is not entering the environment in a quantity or concentration or under conditions that constitute a danger to the environment or to the environment upon which human life depends. If benzidine were to enter the Canadian environment (as a consequence of its commercial use), however, it might constitute a danger to human life and health. Therefore, benzidine is considered to be 'toxic' as defined under section 11 of the Canadian Environmental Protection Act. (Copyright (c) Minister of Supply and Services Canada 1993.)