Summary of public comments received on the draft screening assessment for selected C3-C5 alcohols group

Comments on the draft Screening Assessment for Selected C3-C5 Alcohols Group, assessed under the Chemicals Management Plan (CMP), were submitted by the Canadian Consumer Specialty Products Association, the Fragrance Creators Association, and the Canadian Paint and Coatings Association.

Summarized public comments and responses are provided below, organized by topic.

Conclusion

Comment Summary 1: 2 associations support the proposed conclusion.

Response 1: Noted.

New information and data

Comment Summary 2: An association has provided additional data on substances in this group, to further support the proposed conclusion.

Response 2: Additional information submitted was considered. No changes were made to the assessment in response to this comment.

Methodology

Comment Summary 3: A stakeholder asked why it was proposed that the substances in the Selected C3-C5 Alcohols Group do not meet the criteria under paragraph 64(c) of the Canadian Environmental Protection Act, 1999 (CEPA), given the analogue used for isobutanol, 1-butanol, was proposed to meet the criteria under paragraph 64(c) of CEPA in the Alcohols draft screening assessment.

Response 3: Additional information about 1-butanol submitted was considered and the assessment was revised to characterize risk for isobutanol based on the oral developmental toxicity endpoint for the analogue 1-butanol, as proposed in the United States Environmental Protection Agency (2011) toxicological review and as per the Alcohols Group draft screening assessment. The changes are seen in section 6. It remains that isobutanol does not meet the criteria under paragraph 64(c) of CEPA in the assessment.