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Download the Report

The report is designated as portable document format (PDF) file and can be viewed using Adobe Acrobat Reader 4.0. If you have Acrobat Reader 3.02 or earlier, you will need to update to version 4.0.

• Part I: Point and Area Sources

Executive Summary for Part I (PDF-19K)

Full Report (PDF-2,775K)

Report Text (PDF-264K)

SIC pie charts Part 1 (PDF-456K)

SIC pie charts Part 2 (PDF-93K)

Appendices (PDF-1945K)

Full Report (ZIP-2,344K)

Errata Sheet

• Part II: Mobile Sources

Press Release (2/25/00)

The Great Lakes Commission announces the second part of the 1996 Inventory of Toxic Air Emissions which focuses on emissions from mobile sources.

Executive Summary for Part II (PDF-19K)

Full Report (PDF-1,120K)

Full Report (ZIP-973K)

Sample Data (PDF-20K)

The mobile sources feature is new to the inventory, with previous releases including only point and area sources. The top three total emissions (point, area and mobile) are 545 million pounds of toluene, 311 million pounds of xylene and 144 million pounds of benzene, of which mobile sources contribute more than 50 per cent. The inventory, which relies on 1996 state and provincial data, will be used to strengthen state and provincial decisionmaking; promote consistency from one jurisdiction to the next, establish standard data collection procedures; and lay the foundation for a fully automated emission estimation and inventory system.

Errata Sheet

Background

• Project Overview
• Press Release for Part I (12/1/99)

The Great Lakes Commission announces the 1996 Inventory of Toxic Air Emissions.

• Sample Data for Part I

  The new emissions inventory, which addresses 82 targeted toxic air contaminants, found the highest emissions in the Great Lakes basin to be Manganese at 3.251 million lbs/year and Chromium at almost 1.0 million lbs/year. The top two PAHs (polycyclic aromatic hydrocarbons) were Naphthalene at 13.8 million lbs/year and Phenanthrene at 6.4 million lbs/year. The top two non-metals (not PAH) were Toluene at 265.2 million lbs/year and Xylene (various forms) at 141.0 million lbs/year.

• Inventory Development Timeline

State and provincial air regulatory agencies have been working collaboratively since 1987 to develop a regionwide database of airborne toxic pollutant emissions from point and area sources.

• U.S. EPA's Integrated Risk Information System (IRIS)

IRIS is a database of human health effects that may result from exposure to various substances found in the environment. The 82 toxic substances in the Great Lakes Regional Air Emissions Inventory are among those pollutants found in the database. IRIS is updated monthly.