Substances identified as being of low concern

These substances were identified for action under the Chemicals Management Plan (CMP).

• Substances identified as being of low concern using the ecological risk classification of inorganic substances and biomonitoring or rapid screening science approaches
  • Summary of publications
  • Timelines
• Substances identified as being of low concern using the ecological risk classification of inorganic substances and 3 human health science approaches
  • Summary of publications
  • Follow-up activities
  • Timelines

Substances identified as being of low concern using the ecological risk classification of inorganic substances and biomonitoring or rapid screening science approaches

The final assessment for 34 substances incorporates results from the science approaches for the ecological risk classification of inorganic substances (ERC-I), the biomonitoring-based approach 1, the biomonitoring-based approach 2, and the rapid screening for substances with limited general population exposure.

Substances identified as being of low concern using the ecological risk classification of inorganic substances and 3 human health science approaches

The final screening assessment for 21 substances incorporates results from the science approaches for the ERC-I, the biomonitoring-based approach 1, the biomonitoring-based approach 2, and substances with low human health hazard potential.

Follow-up activities

Although silicon carbide (CAS RN 409-21-2), molybdenum oxide (CAS RN 1313-27-5), and beryllium (CAS RN7440-41-7) are not considered harmful to human health at levels of exposure considered in the assessment, these substances are considered to have health effects of concern based upon their potential carcinogenicity. Therefore, there may be a potential risk if exposures were to increase.

For this reason, the Government will undertake information gathering activities to track changes in exposure and use patterns for silicone carbide. Follow-up activities are not being considered at this time for molybdenum oxide and beryllium as an analysis of information on current and future uses suggests that it is unlikely that exposure will increase to levels of concern to human health.