5df75927_r_Batch_7___Environment_Canada__Response
[Topic] Exposure [Comment] 80 000 kg was reportedly imported in the year 2000 (Statistics Canada 2009), however, there is no mention of the amount of isophorone used in that same year. [Response] 
Use quantities for the year 2000 are unavailable. CEPA 1999, section 71, data is for the year 2006 and Statistics Canada only provides international trade data, not domestic use quantities.
Summary of Public Comments received on the Challenge substance Isophorone (CAS 78-59-1) Draft Screening Assessment Report for Batch 7 - Environment Canada
Response