Chemicals Management Forum San Antonio, Texas May 15-16, 2012

1. Comparing Chemicals Information across National Inventories SMOC Chemical Inventory Team Chemicals Management Forum San Antonio, Texas May 15-16, 2012 Commission for Environmental Cooperation

2. Background • Completion of Mexican inventory allows opportunity to compare inventories of the three countries • Interest in comparing available data on subsets of chemicals on all three inventories • Supports SMOC objective of identifying & tracking chemicals in commerce in North America

3. Objectives • To conduct a pilot project to compile and analyze data on chemicals in commerce in Canada, Mexico, and the U.S. • Comparing and sharing available information about chemicals across the three countries will allow for more informed risk management decisions and increased transparency.

4. Approach • Compare the Canada DSL and U.S. TSCA Inventory • Compare the overlap chemicals (those on Canada and U.S. lists) with the interim Mexico Inventory • Select a subset of chemicals that are on all three inventories and that are existing chemicals of interest in each country for the data analysis • Select a set of key pieces of information for the data gathering

5. Results of Three-Inventories Comparison • In order to be able to share/publish the results of the pilot project, the comparison began with the data publically available for the Canada and U.S. inventories, then included the interim Mexico Inventory • Canada DSL: 24,578 published substances (July 2011) • U.S. TSCA Inventory: 66,891 published substances (July 2011) • interim Mexico Inventory: 4662 substances (November 2011)

6. Results of Three-Inventories Comparison • 18,885 substances are on the Canada DSL and the U.S. TSCA Inventory • 5,693 of the Canada DSL substances are not on the US TSCA Inventory • 48,006 of the U.S. TSCA Inventory substances are not on the Canada DSL • 2,584 substances are on all three countries’ lists (Canada DSL and the U.S. TSCA Inventory and the interim Mexico Inventory)

7. Results of Priority Chemical Selection • In narrowing down the overlap list of 2584 substances to a smaller subset for the data analysis, the project focused on Canada and US existing chemicals of interest • Canada provided a list of substances that will be the focus of their assessments in the next five years • U.S. provided a list of newly published Work Plan chemicals • For the early pilot project, larger groupings of substances on the US Work Plan were also not considered in the comparison • This yielded an initial set of three chemicals from the overlap list of 2584 • A less restrictive approach will be applied to identify further chemicals to expand the list of substances for pilot comparison

8. Preliminary Comparison - Pilot • Information on 3 substances was compared (preliminary results) • Benzene, 1,1'-methylenebis[4-isocyanato-] (CAS No. 101-68-8) MDI/MDA • Benzene, 1,1'-methylenebis[isocyanato-] (CAS No. 26447-40-5) MDI/MDA • 1,2-Benzenedicarboxylic acid, 1,2-diisodecyl ester (CAS No. 26761-40-0) Phthalate • Initial consideration was given to: production volume and key information about hazard, use, and exposure • for the pilot project, the decision was made to gather and analyze a minimal set of information that is likely to vary the greatest between countries • e.g., production volume, import volume, release information, uses

9. Preliminary Comparison - Pilot Benzene, 1,1'-methylenebis[4-isocyanato-] MDI/MDA (CAS No. 101-68-8) • Production Volume (Manufacture + Import) • Canada (2008) 7 million kg • US (2006) 45 million to < 226.8 million kg • (100 million - < 500 million pounds) • Mexico (2009 – import only) 1.7 million kg • Information on Use • Canada – 26 NAICS codes, 7 industrial use categories, 11 consumer and commercial product categories • US – 2 NAICS codes, 3 industrial use categories, 5 consumer and commercial product categories • Release Information • Available to both Canada and the US (as part of MDI/MDA group) via National Pollutant Release Inventory (NPRI) and Toxics Release Inventory (TRI)

10. Preliminary Comparison - Pilot Benzene, 1,1'-methylenebis[isocyanato-] MDI/MDA (CAS No. 26447-40-5) • Production Volume (Manufacture + Import) • Canada (2008) 2.7 million kg • US (2006 – import only) 624,000 kg • (1,374,000 pounds) • Mexico (2009 – import only) 1.6 million kg • Information on Use • Canada – 19 NAICS codes, 6 industrial use categories, 12 consumer and commercial product categories • US – 1 NAICS code, 1 industrial use category, 3 consumer and commercial product categories • Release Information • Not reportable to NPRI or TRI

11. Preliminary Comparison - Pilot 1,2-Benzenedicarboxylic acid, 1,2-diisodecyl ester -- Phthalate (CAS No. 26761-40-0) • Production Volume (Manufacture + Import) • Canada (1986 (to be surveyed 2013)) > 1,000,000 kg • US (2006) 454,000 - <4,500,000 kg • (1,000,000 - < 10,000,000 pounds) • Mexico (2009 – import only) 670 kg (1,500 pounds) • Information on Use • Canada –NAICS codes not available, 12 industrial use categories, consumer and commercial product categories not available • US – 2 NAICS codes, 2 industrial use categories, consumer and commercial product categories are confidential • Release Information • Not reportable to NPRI or TRI

12. Preliminary Comparison - Pilot • Clear differences in information across the 3 countries observed in preliminary comparison • Different levels of manufacture & import • Different uses identified • How can the similarities/differences inform exposure characterization in each jurisdiction and on a regional level?

13. Final Steps: Data Analysis • Review data compiled • Determine data gaps • Analyze data variability across countries • Publish a summary of the findings

14. Thank you! Merci! ¡Gracias! Three countries. One environment.